Laars MagnaTherm MGH1600 Installation And Operation Instructions Manual page 80

Page 76
Code Description
11 Internal fault:
Invalid burner control state flag
12 Internal fault:
Safety relay drive cap short
13 Internal fault:
PII (Pre-Ignition Interlock) shorted to
ILK (Interlock)
15 Internal fault:
Safety relay test failed due to feedback
ON
16 Internal fault:
Safety relay test failed due to safety
relay OFF
17 Internal fault:
Safety relay test failed due to safety
relay not OFF
18 Internal fault:
Safety relay test failed due to feedback
not ON
19 Internal fault:
Safety RAM write
20 Internal fault:
Internal fault: Flame ripple and overflow
21 Internal fault:
Flame number of sample mismatch
22 Internal fault:
Flame bias out of range
23 Internal fault:
Bias changed since heating cycle starts
24 Internal fault:
Spark voltage stuck low or high
25 Internal fault:
Spark voltage changed too much during
flame sensing time
Lockout Procedure
or Hold
L Internal fault
1. Reset module
2. If fault repeats, replace module.
H Internal fault
1. Reset module
2. If fault repeats, replace module.
H or L Internal fault
1. Reset module
2. If fault repeats, replace module.
L Internal fault
1. Reset module
2. If fault repeats, replace module.
L Internal fault
1. Reset module
2. If fault repeats, replace module.
L Internal fault
1. Reset module
2. If fault repeats, replace module.
L Internal fault
1. Reset module
2. If fault repeats, replace module.
L Internal fault
1. Reset module
2. If fault repeats, replace module.
H Internal fault
1. Reset module
2. If fault repeats, replace module.
H Internal fault
1. Reset module
2. If fault repeats, replace module.
H Internal fault
1. Reset module
2. If fault repeats, replace module.
H Internal fault
1. Reset module
2. If fault repeats, replace module.
H Internal fault
1. Reset module
2. If fault repeats, replace module.
H Internal fault
1. Reset module
2. If fault repeats, replace module.
LAARS Heating Systems