Rv Furnace Sail Switch Problem

Other possible culprits could be the sail switch being on blower motor problems or the time delay relay switch being closed instead of open.

Rv furnace sail switch problem.

As a result the vent will work but no heat will be produced. These two switches are safety switches and they are in series which means power passes from one to the other and then to the module board which sends power to the gas valve and the igniter which. Camera editing software u. There is a video in the heating and cooling section on troubleshooting and rv furnace and checking voltage.

That thermo switch opens if the furnace gets too hot and shuts down the gas. You might be hearing the relay on the control module trying to start the blower motor. Fan is running but furnace produces no heat. Common rv furnace problems rv furnace blower won t start.

Not enough power from the thermostat to the furnace. An rv furnace has an internal sail switch that will prevent the machine from igniting in cases of air flow being insufficient for combustion. Failed time delay relay. This can be caused by a number of reasons.

The sail switch then sends power to the high limit temperature control. Also you could have a dirty or faulty sail switch. Several things can be checked for a cause in this case. Time delay relay used on older furnaces newer furnaces have the relay incorporated into the circuit board this relay performs two separate jobs one to handle the relatively high current needed to run the blower motor and two to allow the blower to run for 45 to 90 seconds after the thermostat is satisfied.

You need 10 5 volts to the unit for it to operate. Having trouble with our atwood rv furnace not turning on and found out about this secret switch which got it running. The first step would be to check for proper voltage. Can be caused by a bad wire or by power not reaching the thermostat.