Maxol SUPACOMBI HE28, Installation & Servicing Instructions Manual

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LED CODE FAULT/EFFECT REASON ACTION
●
Check air in heat exchanger/r ecuperator
7
Over heated appliance Flue over temperature > 125°C
●
Check r ecuperator – flue ways
ways may require cleaning
●
Check flue ther mistor
12
No ignition CH thermistor failure
●
Check CH ther mistor – open circuit
●
Check PCB/X6 connector – open cir cuit
13
No flame Flue thermistor failure
●
Check PCB/X8 connector
●
Check flue ther mistor
14
No flame/DHW cold DHW sensor failure
●
Check DHW sensor – open cir cuit
●
Check PCB/X6 connector – open cir cuit
20
No flame Gas valve V2 failure
●
Check/r eplace gas valve
●
Check low voltage lead
32
No flame Power supply failure
●
Check mains voltage into boiler
●
Check PCB connectors
Boiler Flame doesn’t extinguish
temperature No flame after 10sec of Defective or seized diverter valve
●
Check diver ter valve operation
displaying hot water draw off
BLOCKING CODES (Display flashes and the er ror light will be lit)
27
IF ANY OF THE ABOVE F AULTS OCCUR DURING INSTALLATION PLEASE REFER TO THE ACTIONS, HOWEVER IF
ANY OTHER ERROR CODE IS SHOWING PLEASE CONTACT THE INSTALLER OR TECHNICAL HELP LINE:
01926 834834
LED CODE FAULT/EFFECT REASON ACTION
●
Check over heat thermostat
●
Check no air is in heat exchanger/CH system
6
T emporarily overheated
Water temperature greater than 100°C
●
CH system and hot water plate
appliance
heat exchanger blockage
●
Check CH ther mistor
DHW cold
●
Check DHW flow switch & lead
light display Defective DHW flow switch or
●
Check DHW/CH ther mister
when tap defective DHW/CH thermister
●
Check PCB/X4 connector
on
●
Check filter in flow switch
(No display) No light indication Defective power supply
●
Check power supply
●
Check PCB/X1B connector
●
Check PCB fuse
No
REFER TO THE ACTIONS FOR THE ABOVE 3 F AULTS