ACV HeatMaster 101 - Page 33

en
33
ENBlockage and error codes
660Y1400 - A
Codes
Fault description Fault solutions
E 61
Air pressure switch closed when it should have opened Check the air pressure switch
Water pressure Check the water pressure
Incorrect fan speed during start-up
1. Check the supply voltage of the MCBA
2. If you detect no problems with it, replace the fan
E 83
Temperature of the NTC6 sensor too high Check the 3-way valve or the valve motor
E113
Network frequency out of tolerance Check the mains frequency
E114
Conflicting or invalid cascade address Check the cascade address
E115
Internal error If the problem persists after two “RESET” attempts, replace the MCBA
Deviation of the mains frequency > 1.5 Hz Check the mains frequency
Opening of air pressure switch during burner operation Check the air pressure switch
Ionisation current too low during burner operation Measure the ionisation current
Gas pressure switch opened during burner operation Check the gas pressure switch
E122
NTC1 or NTC2 sensor deviation Check the NTC1 and NTC2 sensors
E123
NTC1 or NTC2 sensor faulty Check the NTC1 and NTC2 sensors
E124
NTC1 or NTC2 sensor stuck Check the NTC1 and NTC2 sensors