[Function]: Limit switch is a very important safety device on a furnace. The function of a limit switch is to protect the furnace from overheating. If the plenum gets too hot, the limit switch shuts off the burner.
[Installation tips]: Use tools with magnet heads (screwdrivers and heads) or extendable magnet to catch your screws.
[Open Temperature] This unit should always be closed this should open at 190 degrees.
[Satisfaction Guarantee]: We sincerely provide customers with high-quality guaranteed services, when you are not satisfied with the product, you only need to send the item back within 30 days, we support a 30-Day money-back guarantee and provide a 12-Month warranty for quality-related issues.