SSB 6720892984 (2019/02) US
Service reminder | 57
F.2 Lockout codes
Error no. Error Description
0 E2PROM_READ_ERROR Internal software error
1 IGNIT_ERROR Three unsuccessful ignition attempts in a row
2 GV_RELAY_ERROR Failure detected in the GV relay
3 SAFETY_RELAY_ERROR Failure detected in safety relay
4 BLOCKING_TOO_LONG Control had a blocking error for more than 20 hours
5 FAN_ERROR_NOT_RUNNING Fan is not running for more than 60 seconds
6 FAN_ERROR_TOO_SLOW Fan runs too slow for more than 60 seconds
7 FAN_ERROR_TOO_FAST Fan runs too fast for more than 60 seconds
8 RAM_ERROR Internal software error
9 WRONG_EEPROM_SIGNATURE Contents of E2prom is not up to date
10 E2PROM_ERROR Wrong safety parameters in E2prom
11 STATE_ERROR Internal software error
12 ROM_ERROR Internal software error
13 APS_NOT_OPEN Air pressure switch not working
14 APS_NOT_CLOSED Air pressure switch not working
15 MAX_TEMP_ERROR
The external overheat protection is enabled or the
T_Supply
sensor
measures a temperature of over 100°C (212°F)
16 FLUE_GAS_ERROR Flue temperature exceeded the maximum ue temperature
17 STACK_ERROR Internal software error
18 INSTRUCTION_ERROR Internal software error
19 ION_CHECK_FAILED Internal software error
20 FLAME_OUT_TOO_LATE Flame still present 10 seconds after closing the gas valve
21 FLAME_BEFORE_IGNIT Flame is detected before ignition
22 TOO_MANY_FLAME_LOSS Three time ame lost during 1 demand
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
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
34 LWCO_2_ERROR Low water cut-off 2 error
35 GAS_PRESSURE_ERROR Gas pressure switch is open
36 AIR_DAMPER_LOCKING
Air Damper feedback is not received when the relative output is closed for the
fourth time.
37 FLUE_PRESSURE_LOCKING Flue pressure switch is closed for the fourth time.
F.3 Blocking codes
Error no. Error Description
100 WD_ERROR_RAM Internal software error
101 WD_ERROR_ROM Internal software error
102 WD_ERROR_STACK Internal software error
103 WD_ERROR_REGISTER Internal software error
104 HIGH_LIMIT_FAIL Physical high limit test failed
105 HIGH_TEMP_ERROR Supply temperature exceeds 110°C with gas valve closed