104
14 - USE
Loc 22
Internal software error
Replace the power control board
Loc 23
Internal software error
Replace the power control board
Loc 24
Internal software error
Replace the power control board
Loc 25
Gas valve circuit
a - Check LWCO connection
b - Check Flue blocked pressure switch
c - Check High limit temperature switch
d - Check High limit fl ue temperature fuse
WARNING!!!
If the high limit temperature
fuse melt, before any replacement, it is mandatory to
contact the appliance manufacturer to prevent any
permanent damages to the heat exchanger. Failure to
comply with this requirement can result in excessive
levels of carbon monoxide which can result in severe
personal injury or death!
Loc 26
Internal software error
Replace the power control board
Loc 27
Flame present with closed gas
valve
Replace the gas valve
Loc 28
Flame present with closed gas
valve
Replace the gas valve
Loc 29
Internal software error
Replace the power control board
Loc 30
Internal software error
Replace the power control board
Loc 31
Three times fl ame lost during
one demand
a) Check detection electrode;
b) Check for any obstruction on air inlet / fl ue exhaust sytem
a) Try to replace detection electrode
b) Check for any obstruction on air inlet / fl ue exhaust sytem
Loc 32
Internal software error
Replace the power control board
Loc 33
Internal software error
Replace the power control board
Loc 34
Internal software error
Replace the power control board
Loc 35
Internal software error
Replace the power control board
Loc 36
Internal software error
Replace the power control board
Loc 37
Internal software error
Replace the power control board
Summary of Contents for Boiler
Page 3: ...3 SAFETY INSTRUCTIONS ...
Page 5: ...5 SAFETY INSTRUCTIONS ...
Page 122: ...122 15 MAINTENANCE ...
Page 126: ...126 17 SPARE PARTS Spare parts ...
Page 129: ...129 17 SPARE PARTS 50 48 50 49 53 56 57 55 54 58 47 52 48 52 51 55 52 020010 03 006 199 ...
Page 152: ...20 SEQUENCE OF OPERATION for BOILER ...