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.
Rv furnace limit switch.
It reads the temperature of the plenum and waits until it gets appropriately warm.
The high limit switch controls excess heat from damaging the heat exchanger.
Rv furnace doesn t shut off when temperature is reached.
Ordered new limit switch atwood 37022 hydro flame limit switch 190 degrees around 15 with shipping paying attention to get one with correct limit temperature and also trying to find out with rv manufacturer for no reason i decided to contact them not atwood whether it s possible to take sail switch out without taking the furnace unit out.
Pinnacle black thermostat limit switch hh18ha211 bryant oem furnace limit switch l225 50 by oem replm for bryant b13701 55 goodman oem furnace replacement limit switch.
Troubleshooting the rv furnace.
If the temperatures get too high the switch will cut power and avoid damage that could be caused.
It can be caused by a faulty limit switch.