91 Pace Arrow Heater

[mrlightrail]

Got the rig hooked up to shore power at the house, but cannot get the heater blower to not run when the temps get below 50 degrees. Shut off propane, shut down all of the breakers, but blower still comes on.

[mrlightrail]

pulled one wire off the thermostat, issue resolved.

[koko1usa]

My 90 Pace Arrow has a on/off switch on the bottom of thermostat. Mike

[RLS7201]

Goto the 12 volt fuse panel, next to the 120 volt circuit breakers. Start pulling fuses until the furnace shuts down. Mark the location for the next time.

Richard

[enblethen]

You could remove the cover on the thermostat and disconnect one wire.

[mrlightrail]

Oh, it'll keep it from freezing, but I'd go thru a tank of propane a month. The water lines are drained, so that's not a worry, but I don't need the heater cycling constantly, wasting propane, or running non stop if I turn off the gas.

[tommy_g]

There has got to be a 12v fuse.

[enblethen]

You could install a micro switch in the line at the thermostat.
What happens when you want it to keep rig from freezing?

[Mike_Hohnstein]

Guess you'll have to break out the side cutters.

[mrlightrail]

All works ok. The issue is that the temperature gets so cold it kicks on. I need to shut it down so it does not start when the temp drops below 50 degrees, which is the lowest you can set it at.

[enblethen]

Try disconnecting one wire in the thermostat. If blower shuts off the thermostat is bad.
If it stays running, go to furnace and disconnect one of the blue wires. If blower stays running, the time delay relay is bad. About one inch square black unit mounted to fan housing. Has four wire terminals.

[mrlightrail]

Old thermostat had no on/off/auto switch. New one didn't have one either. just a lever to set the temp.

[doxiemom11]

Fan setting on thermostat should be set on "auto" and then fan should come on and go off with the furnace.

[Mike_Hohnstein]

Blower is 12 volt. Thermostat should have a OFF position.