Furnace Limit Switch Settings

Slide the cover off the control switch.

Furnace limit switch settings.

How to set a fan limit control switch step 1. Look for the fan limit control switch encased in a small rectangular box. The other important function of the limit switch is to shut off the burners if the heat exchanger gets too hot a condition that can crack the piping in the exchanger effectively ruining the furnace. The limit switch includes a sensor in the heat exchanger to determine.

Limit switch functions if the blower came on at the same time as the burner it would pump cold air through the house at first. Locate your furnace s heating duct. Wood furnace fan limit switch settings. It will be located at the top of the panel.

Depending on your furnace model the. Open up the access panel on the furnace. What is a high temperature limit switch on furnace help me understand how my furnace wood work together furnace fan limit switches electrorientesa co max caddy wood furnaces fcflc 5 fan limit control fire chief furnace. It should be located near the top of.

Locate the white limit switch. By saum hadi posted on october 15 2018. When the air in the supply plenum drops to the lower setting on the limit switch the switch shuts off the fan until the next cycle begins. Heating ducts are typically located in a home s basement or utility closet.

How to reset a furnace limit switch step 1.