Top up with water. possible fault Elapsed time gas valve open without gas (short request in a short period). The burner door should be closed the burner plug should be plugged and now you should startthe heating system. Published by at 14 Marta, 2021. j=F0&Lo%m. These boilers are operated with the 2000 or/and 4000 series controlsystems. 12. pcs leave before deros; chris banchero brother; tc dimension custom barrels Replace the cable loom or the affected part thereof. xref Before you start the boiler make sure that:the system water pressure is at the proper level, emergency stop switch of the the heating system is ONand the fuel supply to the main fuel shut-off valveis open. These additional substances often lead tocorrosion, scaling or deposits. 6813` np*F a Cleaning the boiler with cleaning brushes, First you should write down theposition of the hot gas baffle plates to ensuretheir correct re-installation later. Non-existent or insufficient circulation. All repair tasks should be carried out by qualified trades people. Sensor not or badly connected. After this release and remove the anchor rods. Replace the primary, Open the servicing cocks. Open a thermostatic valve. Replace if necessary. Buderus boilers are able to work in two systems: sealed and open. >%+UFYm0=o. possible fault BL terminals on User Interaction, Controller are open circuit, possible fault No flame detected during operation, possible fault Bad connection or wiring fault, Internal communication fault, possible fault Parameter error or faulty PU, Configuration error or PCB fault, possible fault possible fault Internal fault in combustion control unit, possible fault Bad connection to flow or return temperature sensor, possible fault Over-temperature thermostat on heat exchanger activated, No water flow through heat exchanger, PCB over-temperature condition, Flue fault resulting in, Recirculation or activation of airpressure switch (if fitted), possible fault No ignition, No flame detected following ignition, False flame signal detected, possible fault Fan calibration error, Fan failure, possible fault Bad connection to PU, Parameter error or faulty PU, possible fault possible fault Bad connection or wiring fault, Parameter error, possible fault Gas valve connection cable, possible fault Central heating NTC fault, possible fault Central heating return NTC fault, possible fault Safety thermostat operated, possible fault Primary system water pressure too low, possible fault Circulation fault (primary), possible fault Interruption of gas supply or flame failure, possible fault Interruption of gas supply (internal error), possible fault Flow/ return sensor temperature test, possible fault Circulation fault (Dry fire), possible fault Central Heating Thermistor Sensor Fault, possible fault Water Pressure Sensor Fault, possible fault Internal Clock Time Error on PCB. Two display codes will also be shown. The air fan has failed during the operating phase. The burner door should be closed with both hexagon bolts. Replace the tacho wire. The system can freeze up if it is not in use,e.g. In instances where the display code is a fault code, this fault code either flashes (locked fault code) in the display or it is shown permanently (blocking fault code). If you suspect the hub joint leaking you need to primarily drain the water throughthe fill & drain valve. Holding up your end of the pressure vessel guarantee will help ensure your boiler stays under warranty and in good working condition for many years to come. possible fault Permanent Fault - Maximum safe temperature value reached. No ionization current. Miura Boiler Manuals 15 Devices / 17 Documents Full list of Miura Boiler Manuals Miura Boiler Supplies Manuals 1 Devices / 1 Documents Full list of Miura Boiler Supplies Manuals Miura Controller Manuals 2 Devices / 4 Documents Fill and bleed the heating system. z Ground the grounding terminal to prevent electric shock and malfunction. possible fault Water pressure test failed. In addition, the gage glass is typically used to confirm the water level prior to starting up the boiler. While wet-cleaning you should follow the same steps in the same order as described forcleaning with brushes, but you need to pay attention to the cleaning agent functionality, in some instances you will need to cover the control device with plastic to prevent sprayfrom entering the control device. Connect the expansion tank to the return conduit. We help you fix or diagnose the problem in 15 minutes, for a fraction of the cost of a home call out. Easy-to-replace Cartridges and FiltersWhen the reagent cartridge reaches low capacity, the cartridge status light will illuminate signaling a replacement is needed. Bad connection. Hubs need to be cleaned beforere-assembly.New nipples shouldbe used and and new packing cord. These timed increments can be set from every 30 minutes to every 240 minutes. Control device and heating system fault finding is included in the section above. endstream Raya Kali Baru, Laksana, Kec. Fan seized. Buderus boiler maintenance and annual service, In order to assure proper economical functionality (low fuel consumption) and high level operational reliability your boiler should be serviced annually. var hs = document.createElement('script'); hs.type = 'text/javascript'; hs.async = true; %PDF-1.3 % possible fault Circulation fault (dry fire). You will also maintainthe highest level of environmentallyresponsible combustion. Non-existent or insufficient circulation. Non-existent or insufficient circulation. possible fault i) Boiler max temperature exceeded for gradient (probable pump jammed or air in the circuit). Make sure that the ventilation and exhaust air openings are not closed and not restricted. Troubleshooting Troubleshooting and Maintenance 6-2 Troubleshooting Safety Messages Please read the following safety messages before troubleshooting or performing maintenance on the inverter and motor system. Replace the supply and return sensor, Replace the cable loom or the affected part thereof. Adjust the gas/air ratio. Clean the circulation pump (inside). Replace the hot surface ignitor. 0 Fueloperating condition can be easily achieved by the controls monitoring the boiler temperature and reducing the flowrate through the boiler until the required temperature is reached. This user's manual covers instructions for the use of your Colormetry system. And if one of these display codes is a locking display code, the blocking display codes shown will also flash. <>/PageLayout/OneColumn/PageMode/UseNone/Pages 15 0 R/Type/Catalog/ViewerPreferences<>>> The burner ignition transformer may getdamaged once you press the reset buttonmore than three times in one after another ifburner refuses to start. 0000001699 00000 n Restore the contact between the UBA 3 and the UBA 3 mounting base, No temperature increase after burner start or the temperature difference between the supply and safety sensors is more than 27 F (15 K), The temperature difference between the supply and safety sensors is more than 27 F (15 K), The primary circulation pump does not generate a pressure difference. 0000027883 00000 n In most cases those faults can be remedied by simply resetting the burner/ resetting the appliance (look below procedure on how to reset the boiler). possible fault Permanent Fault - Permanent loss of communication between gas valve and boiler PCB. Miura Manuals and User Guides All-Guides Database contains 12 Miura Manuals (31 Devices) for Free Downloading (PDF). installer action This is a temporary error and will clear automatically. Pakuhaji Tangerang Banten 15570, Telepon: 021-222 59 400 Telepon: 021-593 71 687 Ponsel: 0895 3287 02165, PUSAT FABRIKASI BOILER~ Fabrikasi boiler dan Thermal Oil Heater, Search results for "miura-boiler-fault-codes". The solution This fault will require a call out to a Gas Safe registered engineer. % Preparing for a leak test- close all boiler hubs,the flow and return connections (fit the air ventvalve to the connecting block Rp 34. If the boiler you're working on is displaying an error code which isn't described below, please contact Baxi Customer Support who will be happy to help. water should be drained always at the loest system point via cut draining valve. User action Log into baxiworks.co.uk for more information about this error code. All repair tasks should be carried out by qualified trades people. Then remove the water pipes and thethe feed pipe. Thanks to this there is a sustainable temperature distribution and there is no condensate built int he combustion chamber. })(); Mitra Boiler adalah Perusahan penyedia Barang dan Jasa, PT Indira Dwi Mitra Kawasan Pergudangan LAKSANA BUSINESS PARK Blok No. Hb```f``zAX`1g3;0:( =glQ'?b00Xs;U|mkXd!CUWI8ytlV"/#)'orO\if_LZ:1*eR+\Ow-9p6LFmmx\:]^YE1Gorlk\mH?76R=#sY$S3VJPYQ\s[jMGb9gYsIf N:4YR3@5*#3Mjjopqh zH Clean the boilerwith brushes and/or by a wetmethod. The cause has to be remedied and the boiler resumes regular operation. The hot gas flues should be cleaned by rotating the round cleaningbrush. This is can be kept by controlling flow comparing to temperature of the boiler. 6 All MIURA steam boilers are fully packaged and test fired at factory. Clean and/or replace the corresponding components. Fill and bleed the heating system. Check the circuit continuity through the fuse using the volt-ohm multimeter. Thecleaning agent should be spayed evenly into the hot gas flues. Bad connection. possible fault Permanent Fault - False flame signal. Comply with the regulations and standards of the country of use regarding installation and usage. Please ensure that operation manual is read and observed in full by all persons working with the steam boiler. TEL +81-89-979-7066 FAX +81-89-979-7067 E-mailhakuyo_mka@miuraz.co.jp Shimanami maintenance Div. No circulation. Sensor not or badly connected. possible fault Temporary Fault - Communication error with the HMI PCB. The pressure gauge marker in case ofsealed systems must bewithin the green field. Sensor fault. Replace the gas valve, Restore the plug-and-socket connection. Fill and bleed the heating system. The minimum appliance operating temperatures are listed in the table below. possible fault Frequent flame failure (12 times). Fault Codes - MyBoiler.com Disclaimer: Information on this website is provided for informational purpose therefore we cannot accept liability for subsequent problems. Show. Heating system and hot water faults are indicated in the control unitdisplay. Then you should close the mains gas, and that can be achieved by closing off the mains valve, immediately open all doors and windows. Bad connection. x=$u: i[ @J[}$#AcE/HjdWy)/}{Ibb%yx^6(|iW_{v!K(K(,KWsn:mr"2gvb^R^j^ %?,-_oou;sj%5KLIt;TAy/FWJH The most common of these error codes are explained below. possible fault Temporary Fault- Incorrect configuration settings C1/C2. Attention Pressure gauge class 1.0 should be used for the pressure test purposes. possible fault Gas valve connection cable. It is very important that the water keeps high quality at all times. Replace the supply and return sensor, Contact the Buderus customer service or your installer, Restore the plug-and-socket connection. miura boiler fault codes. 14 0 obj <> endobj The main shut-off fuel valve should be closed. Cleaning the Feed-Water Tank 69 Inspecting the Safety Valve 70 Safety Sensors Check 71 10 Breakdown & Countermeasures 72 Alarm and Red Status Lamp - Alarm 73 Yellow Status Lamp - Caution 74 Action to be Taken before Ordering Repairs 75 Bleeding Air from the Feed Water Pump 79 Inspecting Water Level Probes 80 hs.src = ('//s10.histats.com/js15_as.js'); One of the most unique features of the Buderus iron cast boilers is the thermo-stream technology. Where possible install the boiler with the recommendedwall clearances (values shown table below). Replace the tacho wire. possible fault Wrong power supply electrical frequency (Hz). Self-CalibratingThe Colormetry unit performs a true-zero test before every automated sampling. Restore the contact. 0000000671 00000 n Interruption of gas supply or flame failure. Then verifythe connections and pipework for leaks. Sensor error. Simply release the cartridge lock, pull out depleted cartridge, insert new cartridge and close lock to continue normal testing operations. Non-existent or insufficient circulation. CALL (414) 425-3339. Slowly fill the boiler block. <> Outlet temperature too high (over 203 deg). Utilizing its dual-tank design, the active and idle tanks will swap, providing the boiler system with soft water once again. Bleed at the highest point of the system, untilwater flows out of the air vent valve. Miura CMU-124H Troubleshooting Guide. 0000003208 00000 n Buderus boilersrequire acorrect fuel to ensure a properoperation. Next you should remove the hot gas baffle plates from the hot gasflues. endobj Water leak on boiler. z Provide a ground fault interrupter with an overcurrent-protection function to prevent electric shock. 2. Sensor error. 0000001400 00000 n possible fault Permanent Fault - Flue temperature sensor open-circuited. External connection board fuse replacement, 4. Defective gas/air unit. Boiler has attempted to light 5 times and failed, possible fault Central Heating Thermistor Senor Fault, installer action Ensure radiators are bled of air, installer action Add water to the system via filling loop, possible fault Primary Water Circulation Fault, installer action This may follow a power cut, try reset, installer action Check gas is turned on, if prepayment meter check there is credit. The benefit of the conductivity-type . 120 0 obj << /Linearized 1 /O 122 /H [ 741 681 ] /L 950994 /E 28175 /N 18 /T 948475 >> endobj xref 120 14 0000000016 00000 n Hardened or damaged packing cord must be replaced! possible fault Interruption of gas supply (internal error). Check PCB for damage. Remember not todamage the systemthrough frequent activation of the resetbutton. MyBoiler Ltd, Registered in England 10160026, VAT Registered GB 350 210 164, Flow Temperature and Power Output relationship, Retrofit for an existing Hot Water cylinder, Flow Rate(LPM) to Energy used (kWh) Calculator, Boiler Maximum and Minimum output mode videos. Flue NTC fault, air pressue switch fault, blocked flue, blocked condensate or wiring fault. Whenever applicable an extra wallclearances for additional components should be provided, especially in instances where pipe connections,DHW cylinder andflue gas silencer are located onthe flue gas side. Tighten the hexagon bolts evenly to properly seal theburner door. Energy bills have been increasing. The blower is switched off during the safety test, Fully switch off the heat request and check that the blower is still operational after 1 minute. Here are some of the most popular boilers in the UK that are will have these issues: Ideal Logic C30 Ideal Vogue Max C32 Logic H15 Regular Logic Combi ESP1 30kw Logic Combi ESP1 35kw Ideal error codes and faults summary There are still ways to reduce this. endobj Buderus oil- and gas-firedboilers were designed and built according to latest technologies, safety regulations applicable for commercial and industrial use boilers and therefore Buderus boilers need to be installed by qualified specialists. Up to five previous cautions or alarms are stored for operator reference. Carry out a leak test at a test pressure of 5.8 bar (inaccordance with the requirements of the EuropeanPressure Vessel Directive). Ask a certified engineer to check the thermostat and circulation in the radiator Other Ideal Boiler Faults: No Display If you see this message, it means the boiler display is blank. possible fault Central heating NTC fault. Copyright Privacy Policy - Contact - Sitemap, Open the servicing cocks. 0000003262 00000 n Under normal operating conditions it is only possible to call up level 4 using the RC control device or a service tool. Sensor not or badly connected. The main shut-off fuel valve should be closed, The heating system shutdown Logamatic 4000, Switch the control device OFF/ON switch to the OFF(position 0). startxref Replace the primary circulation pump. TEL +81-84-930-0740 FAX +81-84-930-0741 hakuyoshimanamimka_ippan@miuraz.co.jp Tokyo maintenance Div. Have A Brand New Boiler Installed Tomorrow Get a Quote Now 2. _Hasync.push(['Histats.fasi', '1']); Miura Boiler Manual Pdf. 1.1 FEATURES. 5 Miura Boiler Manuals and User Guides (17 Models) were found in All-Guides Database. CommunicationCommunicates testing results with Miura components or building automation system to alert operators of a problem and to initiate countermeasures. 2925 V. Feedback from the modulating gas valve is too low. Table 1.Buderus boilers locking- fault codes applicable for all models, Attention! 0000001422 00000 n var _Hasync= _Hasync|| []; 763 0 obj << /Linearized 1 /O 765 /H [ 768 2130 ] /L 851257 /E 64201 /N 105 /T 835878 >> endobj xref 763 16 0000000016 00000 n If broken, replace it by (a new) spare ceramic fuse 5 amps, 250V fast blow (F5AH, 250V), 9. Check position of jumper 1. possible fault Permanent Fault - Jumper 2 changed. Of these technologies, conductivity probe and differential pressure (DP) types are the most common technologies. Your boiler can be switched off simply bythe fuel supply shut down at the main fuel shut-off valve, however it is always recommended to drain the system, mostly to protect your boiler, pipes and radiators from frost. Bleed the gas supply pipe. You should contact your installer or service engineer if you need to regularly re-fill the system as there may be a leakage in the system and leak testing should be performed, because pressure, control and safety equipmentmay be damaged through excessivepressure. 0000004093 00000 n Attention! No circulation. If you carry out a leak test, you need to makesure that no pressure, control or safetyequipment is fitted which cannot beisolated from the boiler water chamber. possible fault Maximum Limit of Flow Temperature, installer action Bleed water from radiators, installer action Add water via filling loop, possible fault System Pressure Low (<0.5 bar). Replace the safety sensor, No ionization after four startup attempts. If the burner is being held off due to a soft lockout, the display alternates between showing "9" followed by boiler outlet temperature and "b" followed by the 2-digit codes below. Short-term fluctuation of the mains. %PDF-1.5 % possible fault Flue thermostat sensor tripped (lockout). Sensor not or badly connected. installer action Use the filling loop to repressurise system to between 1 & 2 bar. . F Fault Codes: BOILER TROUBLE? MIURA CO., LTD. Ship Machinery Dept.Maintenance Div. If you are a new system owner we would recommend to check your heating system waterpressure first on a dailybasis, and thereafter at increasing intervals. 1. The pre-treated water normally used for the system topping is called- make up water. miura boiler fault codes. 0000005551 00000 n Sensor fault. You need to make sure that no pressure, control orsafety equipment is fitted. MIURA BOILER WEST, INC. possible fault Permanent Fault - Maximum flue gas temperature value reached (>140 Deg C). If hardness is detected as a result, the colormetry unit visually and audibly alerts the boiler operator and signals a caution or an alarm offering so the system can address the issue with automated reagent injection, mixing, and evaluation integrated into the boiler control system. Open a thermostatic valve. In the event of a locking boiler fault code both the display value and the display code flash. Description. HVPvvn89BO Q$&^8I^_' L{CZ3'd1Pv1SI6-7p~}w ` hW+S|L"D3o Pro^17t,e;|uW}k}Unaa>UwW0V?Li/5Iy>C%R=t-T;7i PUBLICATION REVISED SEPTEMBER 2000 Introduction We appreciate your purchase of the Colormetry system. Categories . possible fault Permanent Fault Requiring Reset - No circulation. Replace the primary circulation pump. Alarm and Fault History LoggingWhen an alarm or caution is signaled, the Colormetry unit displays the alarm fault codes that assist the operator in resolving the problem and sends fault code information to the Miura Online Maintenance (MOM) program. Attention! Leave the danger zone immediately when you hear gas streaming out, Life danger- through poisoning. Depending on its purpose, water can be divided into different groups: heating water is the medium contained within your heating system, fill water is medium used for first system filling- before it is commissioned. installer action Check radiators are bled. Keep away from any naked flames, dont use lighters. About; Features; Apps; Browser Extension; Support. Menu. 2927 B. Flame failed during burner operation. Raya Kali Baru, Laksana, Kec. . Never use chlorinated cleaning agents or halogenated hydrocarbons (as, for example paints and adhesives, solvents or cleaning agents, contained in spray cans). Deal with blockage. F5: Return thermistor fault The problem possible fault Temporary Fault - No flame during operation. Home Our History Our Boilers News & Blog Resources Accessibility Contact Us, 4025 Sladeview Crescent Unit 5-6 Mississauga, ON, L5L 5Y1, 8 Copernicus Blvd. possible fault Permanent Fault - Critical flow temperature reached. Favorite this: Click here for more information. 0000004599 00000 n This switches the boiler and all itscomponents OFF (for example the burner) as shown on the picture below. Restore the plug-and-socket connection. Have your system inspected, cleaned and maintained annually by a specialist. Operating conditions on Buderus G and GE cast iron boilers. Replace the supply cord. Miura Boiler BP-201STA Operation manual (61 pages), Miura Boiler EX-300 Installation manual (61 pages), Miura Boiler EX Series Startup manual (31 pages), Miura Boiler EX Series Inspection manual (88 pages), Miura Boiler LX-100 Operation manual (90 pages), Miura Boiler LX-150 Operation manual (90 pages), Miura Boiler LX-200 Operation manual (90 pages), Miura Boiler LX-300 Operation manual (90 pages), Miura Boiler LX-50 Operation manual (90 pages), Miura Boiler LXH-200 Operation manual (90 pages), Miura Boiler LXH-300 Operation manual (90 pages), Miura Boiler Supplies CMU-324HE Operation manual (60 pages), Full list of Miura Boiler Supplies Manuals, Miura Controller MP1-200 Operation manual (63 pages), Miura Controller MP1-200 Start up & operation manual (50 pages), Miura Controller MT1-200 Operation manual (63 pages), Miura Controller MT1-200 Start up & operation manual (50 pages), Miura Touch terminals EJ-210 Operation manual (34 pages), Miura Touch terminals EJ-210 Installation manual (22 pages), Full list of Miura Touch terminals Manuals, Miura Water Dispenser MS-10 Operation manual (32 pages), Miura Water Dispenser MS-22 Operation manual (32 pages), Miura Water Dispenser MS-30 Operation manual (32 pages), Miura Water Dispenser MS-40 Operation manual (32 pages), Miura Water Dispenser MW-1000U Maintenance manual (102 pages), Miura Water Dispenser MW-100U Maintenance manual (102 pages), Miura Water Dispenser MW-150U Maintenance manual (102 pages), Miura Water Dispenser MW-250U Maintenance manual (102 pages), Miura Water Dispenser MW-35U Maintenance manual (102 pages), Miura Water Dispenser MW-400U Maintenance manual (102 pages), Full list of Miura Water Dispenser Manuals. 0000008684 00000 n (Safety thermostat open-circuited). Remove the amplifier and check connections Fault Code 17 - Main flame failure during RUN Fit the correct gas orifice. Those temperatures should be reached within maximum 10 min period of time. possible fault Permanent Fault - Flow temperature sensor short-circuited. 0000000015 00000 n 0000000826 00000 n 0000001308 00000 n 0000001416 00000 n 0000011269 00000 n 0000011380 00000 n 0000011541 00000 n 0000011780 00000 n 0000026270 00000 n 0000027199 00000 n 0000027356 00000 n 0000027591 00000 n 0000057584 00000 n 0000058514 00000 n 0000058666 00000 n 0000058920 00000 n 0000059174 00000 n 0000062263 00000 n 0000062598 00000 n 0000063477 00000 n 0000001102 00000 n trailer Bad connection. HVn6+*`MjyS E%D:NS$]>94'>+)-L,uNPm?+NF+2W:I 4T]%;G uvb. Additionally any burner fault is indicated by afault lamp on the burner. If a Baxi boiler develops a problem, the boiler will display an error code to help you identify the issue. Next you should press the burner reset button as shown on the picture below, Buderus boiler systems- water pressure check. possible fault Permanent Fault - Boiler reset in progress. F-009 Jl. Check the circuit continuity through the fuse using the volt-ohm multimeter. hb```f``g`d`\ s1 (f`hd2kb Gas valve not detected. <<399A77591D74F084DEDF1D70DAF90F31>]/Info 16 0 R/Prev 80673/Root 18 0 R/Size 38>> Ideal Boiler C Fault Codes C2 - Boiler Chip Card Fault Try to reset your boiler C0 - Central Heating Signal Problem. %%EOF Book the time at the end of installation and commissioning so that heating engineer can train you properly in boilersoperation system. Fault in air/gas unit. Replace the cable loom or the affected part thereof. In the most the cases the shuntpump circuit can be controlled normally by Buderus 4212 fitted with a ZM427 module or Buderus 4000 control. OR iii) Safety thermostat sensor tripped. You should switch off the boiler immediately and call for help, Life danger- through the explosion of volatile gases. is candy a common or proper noun; Tags . possible fault Permanent Fault - Critical flue gas temperature value reached. If possible try lighting a gas cooker or fire. Whenever there is a burner fault, the lamp located on the burner will flash. Flow rate can be reduced bymodulating the boiler primary pumps, closing the valves on the mixed heatingcircuits. Check the heating system operating pressure. possible fault Permanent Fault - Problem with gas valve. 12`a ( !LnA , K1H``0UI`Z|#Pr@~ endstream endobj 133 0 obj 565 endobj 122 0 obj << /Type /Page /Parent 105 0 R /Resources 123 0 R /Contents 124 0 R /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 123 0 obj << /ProcSet [ /PDF /Text ] /Font << /F1 126 0 R /TT2 128 0 R >> /ExtGState << /GS1 131 0 R >> >> endobj 124 0 obj << /Length 1050 /Filter /FlateDecode >> stream possible fault Temporary Fault - Flow temperature increasing too fast in heating mode. _Hasync.push(['Histats.start', '1,3940306,4,23,170,35,00011011']); Re-check the operating pressure. The Miura EX Series steam boilers, with gas and oil fuel options, are ideal for hospitals and other facilities that are required to have a secondary fuel source Features A once-through, forced-flow, steam generator design provides full output within 5 minutes Gas-Oil dual fuel burner Now you should clean the hot gas baffle plates using one of the twocleaning brushes as shown on the picture below. Open a thermostatic valve. 0000004618 00000 n xc```f``c`a`_ L@qV gh[87&^rf0H0q7j0dB*,a,@| @ Restore the contact between the UBA 3 and the UBA 3 mounting base. %%EOF possible fault Temporary Fault - No input of parameters C1/C2. If there are more than once display codes at the same time, the display codes will be shown in turn. The UBA 3 does not register any connections to the unused contacts 78 and 50. Try to undo the jam or replace the primary circulation pump. In the event of a locking boiler fault code both the display value and the display code flash. Sensor not or badly connected. Operate the boiler only as intended and when it is inperfect condition, 2. 4. possible fault Permanent Fault - Temperature measured by return sensor greater than flow sensor. endobj An ionization current was measured before the burner start. Dismantle the fuse holder by loosening the bayonet connector, 8. Set the over-pressure to at least 1 bar. Re-assemble the UBA 3 in reverse order of disassembly, 10. Once achieved you can shut down the heating system and brush out the hot gas flues. To clean your boiler properly you should first open the door byremoving thetwo lateral hexagon bolts.

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