Riello Array AR 399 SE Installation, Operation And Service Manual page 52

APPENDIX
RECYCLING AND DISPOSAL APPENDIX
Error no. Error
24 FLUE_SWITCH_NOT_CLOSING
25 TSUPPLY_DIFF_ERROR
26 TFLUE_DIFF_ERROR
27 FILLING_TOO_MUCH
28 FILL_TIME_ERROR
29 PSM_ERROR
30 REGISTER_ERROR
31 T_EXCHANGE_LOCK_ERROR
32 T_EXCHANGE_DIFF_ERROR
33 LWCO_1_ERROR
34 LWCO_2_ERROR
35 GAS_PRESSURE_ERROR
36 AIR_DAMPER_LOCKING
37 FLUE_PRESSURE_LOCKING
BLOCKING ERRORS
Error no. Error
100 WD_ERROR_RAM
101 WD_ERROR_ROM
102 WD_ERROR_STACK
103 WD_ERROR_REGISTER
104 WD_ERROR_XRL
105 HIGH_TEMP_ERROR
106 REFHI_TOO_HIGH
107 REFHI_TOO_LOW
108 REFLO_TOO_HIGH
109 REFLO_TOO_LOW
110 REFHI2_TOO_HIGH
111 REFHI2_TOO_LOW
112 REFLO2_TOO_HIGH
Description
The blocked flue sensor is not closed
within 10 minutes
The 2 supply sensors deviate too much for
more than 60 seconds
The 2 flue sensors deviate too much for
more than 60 seconds
Too many automated filling attempts in a
short time period
Filling takes too long
Internal software error
Internal software error
Exchange temperature exceeded the
maximum temperature
The 2 exchange sensors deviate too much
for more than 60 seconds
Low Water Cut Off 1 error
Low Water Cut Off 2 error
Flue pressure switch is closed
Air Damper feedback is not received
when the relative output is open for the
fourth time.
Flue pressure switch is closed for the
fourth time.
Description
Internal software error
Internal software error
Internal software error
Internal software error
Internal software error
Supply temperature exceeds 110°C (230°F)
with gas valve closed
Internal software error
Internal software error
Internal software error
Internal software error
Internal software error
Internal software error
Internal software error
Checks
Check the LWCO
a- Check to ensure all valves are
open, pump is running.
b- Check the wiring between the
controller and the LWCO probe.
a- Check gas pressure to ensure
it is steady and within the recom-
mended range for the unit.
b- Check with as many modules
on as possible to ensure supply
connections are sized properly.
a- Check for obstruction in the
flue piping.
b- Blocking errors should be
recorded prior to the occurrence of
this Locking error.
c- Check for condensate in the
hose connecting the flue pressure
switch to ensure it isn't blocked.
Checks
a- Check the pump to verify
the flow circulation;
b- Check if the valves on
hydraulic circuit are open;
c- Check the supply tem-
perature sensor.
52 52
Solutions
Control board replacement
a- Verify water is in the boiler.
b- Verify good connection between
control module and low water probe.
a- Verify water is in the boiler.
b- Verify good connection between
control module and low water probe.
Solutions
Control board replacement
Control board replacement
Control board replacement
Control board replacement
Control board replacement
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.
Control board replacement
Control board replacement
Control board replacement
Control board replacement
Control board replacement
Control board replacement
Control board replacement