44
SHUTDOWN
44
APPENDIX
APPENDIX
Error no. Error Description Checks Solutions
15 MAX_TEMP_ERROR The external overheat pro-
tection is enabled or the
T_Supply sensor measures a
temperature of over
100°C (212°F)
a- Check the pump to verify
the ow circulation;
b- Check if the valves on
hydraulic circuit are open;
c- Check the high limit
switch.
a- Change the pump or
restart it;
b- Open the valves on hy-
draulic circuit;
c- Change the high limit
switch.
17 STACK_ERROR Internal software error Replace the power control
board
18 INSTRUCTION_ERROR Internal software error Replace the power control
board
19 ION_CHECK_FAILED Internal software error Replace the power control
board
20 FLAME_OUT_TOO_LATE Flame still present 10 sec-
onds after closing the gas
valve
Replace the gas valve
21 FLAME_BEFORE_IGNIT Flame is detected before
ignition
Replace the gas valve
22 TOO_MANY_FLAME_LOSS Three times ame lost
during 1 demand
a- Check the integrity of
the wire connections of the
spark and the earth on heat
exchanger
b- check ionisation signal
while running
a- If wires are damaged,
replace them
b- check for proper com-
bustion settings - if correct
replace spark/amerod.
23 CORRUPTED_ERROR_NR Error code RAM byte was
corrupted to an unknown
error code
24 FLUE_SWITCH_NOT_CLOSING The blocked ue sensor is
not closed within 10 minutes
25 TSUPPLY_DIFF_ERROR The 2 supply sensors deviate
too much for more than 60
seconds
26 TFLUE_DIFF_ERROR The 2 ue sensors deviate
too much for more than 60
seconds
27 FILLING_TOO_MUCH Too many automated lling
attempts in a short time
period
28 FILL_TIME_ERROR Filling takes too long
29 PSM_ERROR Internal software error
30 REGISTER_ERROR Internal software error Replace the power control
board
31 T_EXCHANGE_LOCK_ERROR Exchange temperature
exceeded the maximum
temperature
32 T_EXCHANGE_DIFF_ERROR The 2 exchange sensors
deviate too much for more
than 60 seconds
33 LWCO_1_ERROR Low Water Cut Off 1 error Check the LWCO a- Verify water is in the
boiler.
b- Verify good connection
between control module
and low water probe.
34 LWCO_2_ERROR Low Water Cut Off 2 error NA NA
35 GAS_PRESSURE_ERROR Flue pressure switch is open
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