Furnace Fan Limit Switch Replacement

The limit switch is a safety switch that monitors t.

Furnace fan limit switch replacement.

The fan limit switch also has two other functions. Honeywell l4064b2228 forced air fan and limit controller. 4 8 out of 5. The switch is mounted on the furnace air plenum and is easily recognized because of its wiring once the access panel has been removed.

However for your own safety don t attempt to reset the switch without first consulting your furnace s instruction manual. 025 29041 004 york oem furnace 3 replacement limit switch l160. But it works fine when fan is set to on. Locate the furnace fan limit switch.

The function of your furnace limit switch is to tell the fan when to turn off and on depending on the temperature in the home. 4 8 out of 5 stars 5. How to diagnose and repair the furnace fan limit switch. It also determines if the furnace should be shut down in the case of overheating.

Fan control limit switch the fan switch reads the temperature inside a furnace and once the temperature becomes warm enough turns the blower motor on sending warm air into a home. Verified resistance of 0l on limit switch after switch was reset from powering down furnace. Get it as soon as fri sep 25. When fan is set to auto furnace shuts down within about 1 5 min of starting with red status light blinking 4 times limit switch open code.

It s possible to reset the switch at home when necessary by following a few simple steps. A fan limit switch consists of the following components. In this episode of repair and replace vance shows how to replace the high limit switch in a gas furnace. How a fan limit switch works.

4 8 out of 5 stars 21. This is used so that cold air is not blown into a house waiting for the gas flames to heat up enough before the blower turns on. Emerson 5d51 35 universal replacement fan and limit control with 5 element.