52
xtra
-
Installation & Servicing
FAULT FINDING
FAUL
T FINDING FAUL
T FINDING FAUL
T FINDING FAUL
T FINDING FAUL
T FINDING FAUL
T FINDING
Code
Description
Action
FUSE 24V circuit dead
Check Transformer & replace if necessary
Check 24V fuse on Control Board
If 24V fuse blown check for short circuits before replacing
00
Flame Error (signal present when there should not be)
Replace Control Module
02
No ignition after restart
Check inlet gas pressure
Check wiring to ignition/detection electrode
Check condition of ignition/detection electrode
If above OK replace control module
03
Internal Failure
Check gas valve wiring
Check gas valve solenoids not open circuit
Check general wiring harness and connections
If all OK. replace control module
04
Non-volatile lockout
Press reset
05
Internal failure
Check wiring harness & connections
If wiring OK replace control module
06
Internal failure
Check wiring harness & connections
If wiring OK replace control module
07
Internal failure
Check wiring harness & connections
If wiring OK replace control module
08
Air Pressure Switch did not close
Check motorised damper operating
Check air damper is opening
Check flue for blockage
Check/clean burner
Check Air Pressure Switch sensing pipes condition
Check fan speed
Check air Pressure Switch & replace if necessary
11
EPROM read/write error
Press reset. If fault keeps re-occuring Replace Control Module.
12
24V fuse blown
Check 24V fuse on Control Board
If 24V fuse blown check for short circuits before replacing
Check gas valve leads & solenoids for short circuit
13
Internal failure
Check wiring harness & connections
If wiring OK replace control module
14
Internal failure
Check wiring harness & connections
If wiring OK replace control module
15
Internal failure
Check wiring harness & connections
If wiring OK replace control module
16
Internal failure
Check wiring harness & connections
If wiring OK replace control module
17
Internal failure
Check wiring harness & connections
If wiring OK replace control module
18
Flow temperature too high
Check no air in system or boiler
Check adequate flow of water through boiler
19
Return temperature too high
Check no air in system or boiler
Check adequate flow of water through boiler
25
Flow temperature rise too fast
Check no air in system or boiler
Check adequate flow of water through boiler
28
No tacho signal from fan
Check wiring to fan
If wiring OK replace fan
MASTER AND SLAVE BOILER CONTROL MODULE ERROR CODES
