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Integrated Control Diagnostic Codes (continued)
E 406
LSOM − Compressor open start circuit. Required amount of current is not passing through
Start current transformer. Clears the error after cur-
rent is sensed in START sensor, or after power re-
set.
E 407
LSOM − Compressor open run circuit. Required amount of current is not passing through
Run current transformer. Clears the error after cur-
rent is sensed in RUN sensor, or 1 normal compres-
sor run cycle, or after power reset.
E 408
LSOM − Compressor contactor is welded. Compressor runs continuously. Clears the error
after 1 normal compressor run cycle or after power
reset.
E 409
LSOM − Compressor low voltage. Secondary voltage is below 18VAC. After 10 min-
utes, operation is discontinued. Clears the code
after voltage is higher than 20 VAC for 2 seconds or
after power reset.