Founded in 1900, Coleman Heating and Air Conditioning has been manufacturing HVAC equipment for residential customers for over 100 years. Coleman furnaces contain two internal safety components---known as high-limit switches---that are designed to stop electricity from reaching the gas ignition valve if the furnace overheats to dangerous temperatures. The furnace's lower limit switch is programmed for automatic reset, but the upper limit switch must be manually reset. Performing a manual reset on a Coleman upper limit switch is a quick and simple process.
Open the cover of your circuit breaker box. Identify the circuit breaker switch that controls the electricity to your Coleman furnace. Move the switch into the "Off" position.
Examine the furnace to locate the upper limit switch. Look for a small round component with a raised red button at its center.
Depress and release the red "Reset" button in the middle of the upper limit switch.
Return to the circuit breaker box. Move the furnace's circuit breaker switch into the "On" position.
Tips & Warnings
- The need for frequent resets may indicate a more serious underlying mechanical issue. Troubleshoot your furnace to discover the source of the problem or contact Coleman customer service to schedule an appointment for service.
- Never attempt to troubleshoot or repair a furnace that smells like gas. If you smell gas coming from your Coleman furnace, leave immediately and call for help.
- "Cheap and Easy Appliance Repair"; Douglas Emley; 2003
- Manage My Life: Coleman Gas Furnace Owner's Manual
How to Reset the Limit Switch on a Goodman Furnace
Founded in 1982, Goodman Manufacturing is an American company that produces heating and air conditioning equipment for residential and commercial customers. Goodman...
How to Find My Furnace Motor Reset Button
When the motor on your furnace gets too hot or there is an interruption within the electrical system, a switch will trip...
How Do I Reset a Coleman Furnace Switch?
Operating with natural or propane gas, your Coleman furnace blower's electric fan draws cool air in, heats the air, and then propels...
How to Check the High Limit Switch on a Trane
The high limit switch (also called a main air limit switch) in a Trane furnace is a safety device that is supposed...
How to Reset a Coleman 7900 Series Gas Furnace
Coleman 7900 series gas furnaces do not require owners to light the pilot light with a flame. There is not a lot...
How to Reset a Furnace Limit Switch
One of the most important systems in any home is the heating system. Whether you have a gas or oil furnace, it's...
How to Replace a Furnace Fan Limit Switch
In a forced-air heating system, the blower motor fan in a gas or oil-fired furnace turns on in response to the setting...
How to Test a Limit Switch Furnace
Testing the limit switch or fan control on a furnace is essential to keeping your house warm and the heating cost-effective. The...
How to Set a Fan Limit Control Switch
The fan limit control switch on a furnace regulates when the blower will come on or shut off. In many models it...
How to Locate the Limit Switch on a Gas Furnace
With an annual fuel utilization efficiency (AFUE) rating of 90 percent or greater, gas furnaces are a popular and efficient way to...
How to Reset a High-Pressure Limit Switch
Your home furnace is controlled by a device known as the high pressure limit switch or simply a limit switch. More specifically,...
York Furnace Error Codes
Certain models of York furnaces have a built-in flashing light-emitting diode (LED) located behind a clear cover in the lower door of...