How to Reset a Furnace Limit Switch?


The furnace limit switch is a switch that adjusts when a furnace blows hot air into your house by indicating the fan to turn either on or off at some temperatures. To reset a furnace limit switch, start by unscrewing the panel located underneath the plenum. Then, locate the limit switch and remove its cover. Afterwards, check out the dial settings and move it to the left metal arm to about 90 degrees C. Hold the dial to put the middle arm to around 30 degrees above its lower arm. Lastly, set the final arm and reattach the limit cover.
1 Additional Answer
A furnace limit switch will differ depending on if it's a gas or oil furnace. The limit switch controls when to blow hot air into your house by telling the fan in the furnace to turn on or off at different temperatures. Most limit switches look like a silver dial, which has a white switch that regulates the functions of the furnace. To replace the limit switch, you will need to find a replacement part for your particular furnace or call a qualified service technician in your area.
Q&A Related to "How to Reset a Furnace Limit Switch?"
1. Unscrew the panel underneath the plenum, or heating duct, just below the draft hood (the diagonal opening) Take the panel off and set it aside. 2. Locate the limit switch at the
A limit switch is a switch that will shut off a burner at the highest temp that is allowed. Example:If the limit is set at 200 degrees, the inside of your heater will heat up to that
It's a round metal disk looking thing with 2 screws holding it down, and it has 2 or 3 wires coming off it, it is designed to feel the heat from your furnace, and if the temp of that
An electrical limit switch is used to complete or break a circuit, usually when physically contacted. They have many uses in different fields as safety devices and precision controls
Explore this Topic
1. Turn off the circuit breaker at the main electrical panel that supplies power to the furnace. Tag or otherwise mark the breaker to alert others that the power ...
To troubleshoot a gas furnace auxiliary limit switch, first completely power off the furnace. After a few minutes, turn it back on and test every feature and switch ...
1. Turn off the furnace at the thermostat and switch off the circuit breaker. 2. Take off the cover plate on the side of the furnace using a screwdriver to remove ...
About -  Privacy -  AskEraser  -  Careers -  Ask Blog -  Mobile -  Help -  Feedback © 2014