Fan Limit Switch Temperature Settings

A temperature sensor within the furnace.

Fan limit switch temperature settings.

My guess is 205f. It should be located near the top of. Jul 24 2007 10 06 am the limit switch would be set about 180 degrees this is the off temp the fan switch would be set to come on at 135 and go off at 100 to 105 degrees. Look for the fan limit control switch encased in a small rectangular box.

The three settings from low to high are 80f. An adjustable fan limit controller typically is designed for furnaces operating at temperatures from 100 f to 250 f has a fan off lower limit that can be adjusted from 50 f to 200 f a fan on switch adjustable from 65 f to 215 f and a fan high limit stop set at 200 f. Open up the access panel on the furnace. What are the correct temperature settings for a fan limit switch.

An on off switch for the blower fan. The the low limit is 80f. And the high limit is 130f. A control which turns the blower fan on or off depending on the air temperature within the furnace.

This switch may have to be fine tuned to keep the fan from coming on during summer and to keep the fan from short cycling during normal operation. Slide the cover off the control switch. A high limit setting which turns off the heat source or burner. How to set a fan limit control switch step 1.

Is the he limit. A fan limit switch consists of the following components.