10
Yellow “ALERT”
Flash Code 6
Missing Phase
LOCKOUT
1. Compressor fuse is open on one phase
2. Broken wire or connector on one phase
3. Compressor motor winding is damaged
4. Utility supply has dropped one phase
Yellow “ALERT”
Flash Code 7
Reverse Phase
LOCKOUT
1. Compressor running backward due to
supply phase reversal
Yellow “ALERT”
Flash Code 8
Welded Contactor
Compressor always runs
1. Compressor contactor has failed closed
2. Thermostat demand signal not con-
nected to module
Yellow “ALERT”
Flash Code 9
Low Voltage
Control circuit < 18VAC
1. Control circuit transformer is overloaded
2. Low line voltage to compressor
Flash code number corresponds to a number of LED fl ashes, followed by a
pause and then repeated.
TRIP and ALERT LED’s fl ashing at the same time means control circuit voltage
is too low for operation.
Resetting Alert Codes
Alert codes can be reset manually and automatically. The manual method to reset an Alert
code is to cycle the power to Comfort Alert off and on. For automatic reset, Comfort Alert
continues to monitor the compressor and system after an Alert is detected. If conditions
return to normal, the Alert code is turned off automatically. ALERT codes that result in
a compresor lockout can only be reset manually. ALERT codes that result in a lockout
can only be reset manually.
NOTE: Comfort Alert cannot be applied on compressors that are powered by a
variable frequency drive. The changing frequency will cause nuisance codes to
appear.
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