My electric furnace has no c terminal. Furnace is heat & cool both. (Lennox Electric Fan coil Model CBS18-21-3P).
I installed Honeywell RTH9080WF. I switched G to C on my thermostat and got the power.
Furnace has no C Terminal. The connections on furnace is "R" "W" "G" "Y"
Further on my thermostat I chose "fan controlled by heat pump" and it worked. Heating worked for the whole season.
In summers I switched to cooling and found that compressor is coming up but fan is not.
Fan comes up with heating but does not work with compressor. Kindly advice how to fix this problem.