LAARS NeoTherm NTV (Sizes 150–285 MBTU/h) - Service Manual - Manual (Page 92)

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Service Manual NeoTherm 80 - NeoTherm 285
Appendix 1 - Error Codes (continued)
App1
cont.
Code Description L or H Procedure
11 Internal fault:
Invalid burner control state flag L Internal fault
1. Reset module
2. If fault repeats, replace module.
12 Internal fault:
Safety relay drive cap short H Internal fault
1. Reset module
2. If fault repeats, replace module.
13 Internal fault:
PII (Pre-Ignition Interlock) shorted to ILK
(Interlock)
H or L Internal fault
1. Reset module
2. If fault repeats, replace module.
15 Internal fault:
Safety relay test failed due to feedback on L Internal fault
1. Reset module
2. If fault repeats, replace module.
16 Internal fault:
Safety relay test failed due to safety relay off L Internal fault
1. Reset module
2. If fault repeats, replace module.
17 Internal fault:
Safety relay test failed due to safety relay
not off
L Internal fault
1. Reset module
2. If fault repeats, replace module.
18 Internal fault:
Safety relay test failed due to feedback not
on
L Internal fault
1. Reset module
2. If fault repeats, replace module.
19 Internal fault:
Safety RAM write L Internal fault
1. Reset module
2. If fault repeats, replace module.
20 Internal fault:
Flame ripple and overflow H Internal fault
1. Reset module
2. If fault repeats, replace module.
21 Internal fault:
Flame number of sample mismatch H Internal fault
1. Reset module
2. If fault repeats, replace module.
22 Internal fault:
Flame bias out of range H Internal fault
1. Reset module
2. If fault repeats, replace module.
23 Internal fault:
Bias changed since heating cycle starts H Internal fault
1. Reset module
2. If fault repeats, replace module.
24 Internal fault:
Spark voltage stuck low or high H Internal fault
1. Reset module
2. If fault repeats, replace module.
25 Internal fault:
Spark voltage changed too much during
flame sensing time
H Internal fault
1. Reset module
2. If fault repeats, replace module.