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QUICK CHECKS
DEAD unit.
Check for proper voltage at recepticle?
Remove cover. Check for CDC and position of "dip" switches.
If on wall thermostat make sure #4 switch is up.
If unit is on CDC remove 1 lead to disable CDC.
If not on wall thermostat. Move all switches to down position.
If still DEAD, check for 24VAC at terminals R to C.
If voltage present continue troubleshooting to boards.
If no voltage present suspect bad LV transformer or wiring.
QUICK CHECKS
Remote
thermostat
If electronic thermostat does it light up?
24VAC at "R" to "C"?
Is "dip" switch #4 up?
Does unit operate on controls if #4 down?
Remove leads to thermostat, at unit.
Jump "R" to "Gh" on terminal board.
Fan should run, if not troubleshoot to "smart" board.
Reconnect leads to unit and remove leads at thermostat.
Jump the wires that were on "R" and "G" on thermstat.
If unit runs at terminal board but not at wall wiring problem.
If unit runs both ways, themostat is defective.
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