Gas Furnace Has A Burning Smell

A Gas furnace that has a burning smell is usually from dust burning off the heat exchanger in its first use of the season. This should only last for 20 minutes up until and hour. If the smell persists turn off the furnace immediately to avoid a fire hazard and call a service technician. You may have an electrical problem such as a bad circuit board or bad blower motor. Estimates for repair including labor, parts and service fees are $400 – $1000 to replace the circuit board.

Severity

Severe

What It Means

A bad circuit board may leave you without heat with the furnace turning off prematurely. The blower motor may also be left running all the time.

Safe To Use

The furnace is not safe to use if the burning smell persists and should be turned off immediately.

Estimated Repair Costs (including service fees)

• Replace Circuit Board(Professional):$400 – $1000
• Blower Motor(Professional):$400 – $800

Causes

Causes include a bad circuit board or faulty blower motor.

Repair vs Replace

You should repair your furnace for this problem as you may just need to have the circuit board replaced.

Prevention

Change your air filters every three months, make sure all your air ducts are clear and schedule annual maintenance.