Meaning for the LMV3 System 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.
Any # Air pressure failure (speed-dependent air pressure switch)
A fault occurred related to the speed-dependent air pressure switch. See
diagnostic codes for more information.
0 Air pressure switch off
When using a speed-dependent air pressure switch, the switch must be
closed anytime the VSD speed is greater than the setting of parameter
671.
1 Air pressure switch on
When using a speed-dependent air pressure switch, the switch must be
open anytime the VSD speed is less than the setting of parameter 670.
128 Invalid parameterization
Check the settings of parameters 670 and 671. Parameter 671 must be set
to a higher value than parameter 670.
19 80 Combustion pressure, POC - start prevention Check wiring and operation of combustion pressure switch.
Any # Pressure switch-min (Pmin)
A fault occurred related to the low gas pressure switch. See diagnostic
codes for more information.
0 No minimum gas pressure
gas supply and open any manual shutoff valves. Check the setpoint and
wiring of the low gas pressure switch.
1 Gas shortage / prevention of startup
The low gas pressure switch was not made by the end of phase 22,
preventing the startup of the LMV3. See diagnostic code 0 for more
corrective actions.
Any # Pressure switch-max (Pmax) / POC
A fault occurred related to the high gas or oil pressure switch (or POC if
using an LMV3 with a software version ≤ V02.00). See diagnostic codes for
more information.
0
Pressure switch-max (Pmax): Maximum gas / oil pressure exceeded.
POC: POC open (software version ≤ V02.00)
The high gas / oil pressure switch (input X5-02.2) opened, causing a fault.
Check the setpoint and wiring of the high gas / oil pressure switch. Check
pressure regulators for ruptured diaphragms. If using an LMV3 with a
software version ≤ V02.00, this could be a POC fault if parameter 237 is set
for 2. If so, see corrective action of error code 14, diagnostic 0.
1 POC closed (software version ≤ V02.00)
Only appears if using an LMV3 with a software version ≤ V02.00: See
corrective action of error code 14, diagnostic 1.
64 POC open - start prevention (software version ≤ V02.00)
Only appears if using an LMV3 with a software version ≤ V02.00: See
corrective action of error code 14, diagnostic 64.
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Section 6 Page 5 SCC Inc.
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