Riello Array AR 2000 - Page 54

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SHUTDOWN
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APPENDIX
APPENDIX
Error no. Error Description Checks Solutions
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
co
ntrol module and low water probe.
34 LWCO_2_ERROR Low Water Cut Off 2 error a- Check to ensure all valves are
open, pump is running.
b- Check the wiring between the
controller and the LWCO probe.
a- Verify water is in the boiler.
b- Verify good connection between
co
ntrol module and low water probe.
35 GAS_PRESSURE_ERROR Flue pressure switch is closed a- Check gas pressure to ensure
it is steady and within the
recommended range for the unit.
b- Check with as many modules
on as possible to ensure supply
connections are sized properly.
36 AIR_DAMPER_LOCKING Air Damper feedback is not received
when the relative output is open for the
fourth time.
37 FLUE_PRESSURE_LOCKING Flue pressure switch is closed for the
fourth time.
a- Check for obstruction in the
ue piping.
b- Blocking errors should be
recorded prior to the occurrence of
this Locking error.
c- Check for condensate in the
hose connecting the ue pressure
switch to ensure it isn’t blocked.
BLOCKING ERRORS
Error no. Error Description Checks Solutions
100 WD_ERROR_RAM Internal software error Replace the power control board
101 WD_ERROR_ROM Internal software error Replace the power control board
102 WD_ERROR_STACK Internal software error Replace the power control board
103 WD_ERROR_REGISTER Internal software error Replace the power control board
104 WD_ERROR_XRL Internal software error Replace the power control board
105 HIGH_TEMP_ERROR
Supply temperature exceeds 110°C (230°F)
with gas valve closed
a- Check the pump to verify
the ow circulation;
b- Check if the valves on
hy
draulic circuit are open;
c- Check the supply
temperature sensor.
a- Change the pump or restart it;
b- Open the valves on hydraulic circuit;
c- Verify that the temperature sensor
has the correct resistance values. If
values are incorrect sensor must be
replaced.
106 REFHI_TOO_HIGH Internal software error Replace the power control board
107 REFHI_TOO_LOW Internal software error Replace the power control board
108 REFLO_TOO_HIGH Internal software error Replace the power control board
109 REFLO_TOO_LOW Internal software error Replace the power control board
110 REFHI2_TOO_HIGH Internal software error Replace the power control board
111 REFHI2_TOO_LOW Internal software error Replace the power control board
112 REFLO2_TOO_HIGH Internal software error Replace the power control board