Just moved into older manufactured home with a Coleman Furnace, model 96-8G40-0P (electric). No manual. Installed Honeywell programmable thermostat. Fan won't automatically kick on. It worked with the White Rogers thermostat (non-programmable). Is the Honeywell not compatible? Any suggestions?

Review your thermostat programing instructions CAREFULLY. Please give the Thermostat model number and who installed it?

Typically if you can run your furnace (AND FAN) in the MANUAL mode, you may be in the factory default settings and have to program your own.

Just curious why you changed stats.