How do I get my furnace out of lockout mode?

Regardless of the culprit, you will have to perform a reset procedure to get your furnace out of lockout. Most modern gas furnaces can be reset by turning off the power, waiting around 20 seconds, then switching the power back on. Other furnace models may exit lockout after 1-2 hours and attempt to power on again.

How do I get my furnace out of lockout mode?

Regardless of the culprit, you will have to perform a reset procedure to get your furnace out of lockout. Most modern gas furnaces can be reset by turning off the power, waiting around 20 seconds, then switching the power back on. Other furnace models may exit lockout after 1-2 hours and attempt to power on again.

What does it mean when furnace says lockout?

If one of the sensors reports an unsafe condition, the furnace controller shuts off fuel and power to prevent unsafe operation. This condition is known as lockout. Your furnace will normally remain in the locked-out state until you manually reset it.

What causes burner lockout?

Boilers can lock out due to various problems, such as low/high water pressure, lack of, or no fuel supply (gas, LPG or oil), a blockage in the system, or the lack of power to electronic components.

Where is reset button on furnace?

Locate the reset button on the furnace and press it to reset the furnace. It is usually located inside the blower compartment on the side of the blower motor. Be cautious as the housing may be hot. If the button is popped up, press it down.

Why do I have to push the reset button on my furnace?

A furnace reset button is an important feature included with your HVAC system. Designed to quickly shut the unit off, the function is key to safely heating your home. If your furnace reset button keeps tripping, it’s likely that your furnace is overheating. This may indicate a need for furnace repair services.

How do I fix my boiler lockout?

Modern boilers have a reset button on the display button. Once you’ve resolved the underlying issue, simply press and hold the button to reset the boiler after a lockout. For older boilers (or boilers that don’t have a reset button on the front of the boiler) refer to the manual to determine the reset procedure.

What is a furnace lockout?

A home furnace lockout prevents unsafe operation. Modern gas- or oil-fired furnaces have several safety sensors that keep track of furnace operation. The furnace controller monitors these sensors constantly. If one of the sensors reports an unsafe condition, the furnace controller shuts off fuel and power to prevent unsafe operation.

How do I Reset my furnace from lockout?

However, some manufacturers have different or multiple lockout reset procedures. For example, some furnaces may be reset from lockout by reducing the call for heat setting on the thermostat for twenty-thirty seconds. Finally, some furnaces will reset themselves from lockout after a period of one or three hours has passed.

What causes a furnace to lock out?

Most furnace lockouts are caused by problems with igniters, flame sensors, and limit switches and can be prevented with proper furnace maintenance. Common causes of furnace lockouts are a defective igniter or defective flame sensor. When the furnace attempts to start, sensors check for igniter action and the presence of flame.

Can a dirty air filter cause a lockout switch?

All furnaces need to have adequate ventilation and a dirty air filter can cause a system lockout to occur. For example, a clogged air filter may prevent an adequate supply of air from entering the system’s cold air return that causes the heat exchanger limit switch to trip.