Baxi Luna HT Residential series Troubleshooting Manual Download | Manualshive

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EnErgy-EfficiEnt,
EnvironmEntally-friEndly
HEating SolutionS

Baxi Luna HT

Residential

Troubleshooting

Guide

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Summary of Contents for Luna HT Residential series

Page 1: ...Energy Efficient Environmentally Friendly Heating Solutions Baxi Luna HT Residential Troubleshooting Guide ...

Page 2: ...O HAVE SUCCESSFULLY COMPLETED THE BAXI INSTALLATION PROGRAM USE OF THE INFORMATION HEREIN FOR THE PURPOSES OF ONSITE APPLIANCE CORRECTION BY UNTRAINED PERSONNEL MAY CAUSE EXTREMELY DANGEROUS CONDITIONS AND MAY VOID THE MANUFACTURER S WARRANTY BAXI N A ASSUMES ABSOLUTELY NO LIABILITY IN THE EXECUTION OF THE TRAINING SUGGESTIONS IN THIS DOCUMENT SHOULD YOU EXPERIENCE PROBLEMS OR COMPLICATIONS BEYOND...

Page 3: ...TWO DIGITS E1 FOLLOWED BY THE LAST TWO DIGITS 33 IF AN ERROR CODE APPEARS YOU WILL NEED TO RESET THE BOILER USING THE TOGGLE SWITCH ON THE LEFT HAND SIDE OF THE CONTROL PANEL TURN THE TOGGLE SWITCH TO THE R POSITION RESET FOR THREE SECONDS FIG 2 3 AND THEN LET GO THE TOGGLE SWITCH SHOULD GO TO THE WINTER MODE POSITION FIG 2 1 AND ATTEMPT IT S SEQUENCE OF OPERATION PROVIDING THERE IS A CALL FOR HEA...

Page 4: ... paste NOTES E50 DHW NTC Sensor Fault 1 Take an ohm reading of the DHW NTC sensor If the NTC sensor is out of calibration replace the faulty sensor 2 Check for a resistance in terminals 9 and 10 on the M2 connector Only for heating boilers 3 If utilizing an indirect tank sensor take an ohm reading using chart C If the sensor is faulty replace it If the sensor is working check parameter 651 on the ...

Page 5: ...e the correct CO2 and CO values Refer to the installation guide for combustion specifications Note When CO levels are significantly higher than the numbers above the boiler s specifications it is recycling products of combustion Check all gasket seals between the flue and air intake venting connections If unit cannot be reset Flue High Limit has Activated 1 The flue high limit has a red manual res...

Page 6: ...s try cleaning the flame sensor Note Do not clean the flame sensor using sandpaper as it may damage the protective coating If the sensor is dirty check you re venting to ensure you are not recycling products of combustion Also ensure that your QAA73 parameters are correct for the type of gas you are using NOTES E160 Fan Speed Thresholds not Reached 1 Check QAA73 fan speed parameters values have be...

Page 7: ...H loop If it is going through the CH loop replace the paddles inside the diverter valve and clean the diverter valve 2 Clean the DHW plate heat exchanger 3 Check the DHW NTC sensor 4 Check the Combustion NOTES No Error code Boiler Short Cycles 1 Make sure the combustion settings are correct for the unit and its application 2 Make sure your heat load is adequate for the boiler NOTES No Error code B...

Page 8: ...esistance C Ω Part Resistance Gas Valve 380 1 330 1 3 1250Ω 5 1 450 1 650 1 3 1180Ω 5 1 100 EV1 620 Ω 5 EV2 3356Ω 5 Pump 380 1 330 45 Ω 5 3 Way Motor 380 1 330 1480 Ω 5 Fan 380 1 330 9 Ω 5 Spark Generator 380 1 330 370 Ω 5 DHW Flow Sensor 380 2706 Ω 5 ...

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