furnace limit switch error
The limit switch error is a common issue that can be easily fixed by replacing the furnace limit switch.
A furnace limit switch is an electrical thermostat used to protect your heating and cooling system from overheating or freezing. When the temperature drops below the set limit, it turns off the furnace and returns to its idle position.
The only way for this to happen is for there to be a defective gauge on your boiler pressure relief valve that blocks heat flow from the boiler into your system. There are many different ways this could happen, but one of them occurs when air enters around the gauge which causes too much heat to flow through and trigger an error.
Heating and air conditioning systems use a limit switch to stop the furnace from being over-temped or overheated. However, limit switches are prone to failure. These failures result in house fires that can be prevented with a furnace limit switch error indicator.
A furnace limit switch error indicator is a device that provides immediate notification when the furnace is not operating properly and it can help prevent house fires. It is connected to a circuit board within the heating unit of the home and it alerts homeowners when there are excessive temperatures, like warm or hot temperatures, so they can take action before there is an issue with their heaters.
A furnace limit switch error is caused when the limit switch installed at the back of your furnace fails to detect that when it’s pushed in. This can cause problems such as inconsistent heat or hot water.
This error usually occurs when the face plate of your furnace is missing, or there’s something blocking it. It’s possible that this happened after you tried to install a new limit switch, meaning you’ll need help from an electrician to fix it.