CleaverBrooks ProFire Q Series, Installation Operation & Maintenance

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Troubleshooting
6-16
750-437
Q Series Full Modulation
105
Any # Internal error contact sampling
1. Check the connections of the neutrals to all of the connected switches, valves, etc.
2. The diagnostic code determines which terminal on the LMV3 has an issue. Check for
inductive loads that cause voltage to be present on the terminal after the LMV3 de-
energizes the terminal. If voltage exists on an output terminal, such as a fuel valve, after the
LMV3 de-energizes the terminal, it will cause a fault. Voltage must drop to zero on the
terminal within about 10 ms after the terminal is de-energized.
0
Stuck-at failure (pressure switch-min -
X5-01.2)
1
Stuck-at failure (pressure switch-max /
POC - X5-02.2)
2
Stuck-at failure (pressure switch valve
proving - X9-04.2)
3 Stuck-at failure (air pressure - X3-02.1)
4
Stuck-at failure (fuel selection fuel 1 - X5-
03.3)
5
Stuck-at failure (load controller on / off -
X5-03.1)
6
Stuck-at failure (fuel selection fuel 0 - X5-
03.2)
7
Stuck-at failure (safety loop / burner
flange - X3-04.1, X3-03.1)
8 Stuck-at failure (safety valve - X6-03.3)
9
Stuck-at failure (ignition transformer - X4-
02.3)
10 Stuck-at failure (fuel valve 1 - X8-02.1)
11 Stuck-at failure (fuel valve 2 - X7-01.3)
12 Stuck-at failure (pilot valve - X7-02.3)
13 Stuck-at failure (reset - X8-04.1)
106 Any # Internal error contact request
If the fault occurs continuously, replace the LMV3.
107 Any # Internal error contact request
108 Any # Internal error contact request
110 Any # Internal error voltage monitor test
111 Any # Power failure
Mains voltage is too low. The mains voltage must be 102-132 VAC. Once the mains
voltage returns to the required range, error code 112 will be triggered. Reset the LMV3.
Note: After recovering from this fault, the fault history will only show error code 112, and
the error code 111 will not be shown.
112 0 Mains voltage recovery
No fault: This code is triggered when mains voltage recovers after being too low (see error
code 111).
113 Any # Internal error mains voltage supervision
If the fault occurs continuously, replace the LMV3.
115 Any # Internal error system counter
116 0
Designed lifetime exceeded (250,000
startups)
The LMV3 will still operate, but this fault cannot be reset and internal parts of the LMV3
have exceeded their designed lifetime. It is recommended to replace the LMV3.
117 0
Lifetime exceeded - operation no longer
allowed
Replace the LMV3.
120 0 Interrupt limitation fuel meter input
The LMV3 has detected too many disturbance pulses at the fuel meter input. Reduce
electrical noise and reset the fault.
Error
Code Diag. Code Description
Corrective Action
Note: Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes.