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Platinum Twin
System does not power up/run
Possible cause
Solution
Batteries on thermostat have lost their charge
Change batteries
Thermostat wired incorrectly
Check wiring on 24V thermostat and correct
Wiring issue at master evaporator unit
Contact Customer Service for troubleshooting
24V transformer in master evaporator unit has failed
Contact Customer Service for troubleshooting
Evaporator fans run continuously
Possible cause
Solution
Fan switch on thermostat set to "on"
Set fan switch to the "auto" position
Fan relay in thermostat or 24V conversion kit stuck on
Call Customer Service for details on how to perform the bypass plug
test
Units equipped with the 24V Thermostat Conversion Kit: