Rv Furnace Limit Switch

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.

Rv furnace limit switch.

It can be caused by a faulty limit switch. Troubleshooting the rv furnace. A limit switch is a device that s located under your furnace s supply plenum. Once the plenum reaches a specific temperature the limit switch sends a signal to the air handler to begin running and delivering warm air to your home.

The high limit switch controls excess heat from damaging the heat exchanger. If the temperatures get too high the switch will cut power and avoid damage that could be caused. It reads the temperature of the plenum and waits until it gets appropriately warm. Rv furnace doesn t shut off when temperature is reached.