Gas Furnace Making A Booming Sound

A Gas furnace making a booming sound is due to delayed ignition from gas build up in the combusion chamber. Causes include dirty or damaged burners, dirty crossover tubes, or a broken igniter. Do not try fixing this problem yourself or resetting the furnace. This is a dangerous situation and could cause carbon monoxide poisioning. You will want to turn off your furnace and contact your HVAC technician immediately. Estimates to have the burners cleaned or replaced including labor, parts and any service fees are $100 - $300.

Severity

Severe

What It Means

Your burners or crossover tubes are dirty and need to be cleaned. This is a dangerous situation causing gas build up before ignition.

Safe To Use

This is an immediate danger and you should not continue to use your furnace. Turn it off completely (at the thermostat and breaker). The gas build up could cause carbon monoxide poisoning.

Estimated Repair Costs (including service fees)

• Clean Burners(Professional):$150 – $300
• Clean Crossover Tubes(Professional):$100 – $300
• Replace Igniter(Professional):$150 – $300

Causes

Causes include a faulty igniter, dirty burners, or dirty crossover tubes.

Repair vs Replace

You should repair your furnace for this problem as you may just need to have the burners cleaned.

Prevention

Change your air filters every three months and schedule annual maintenance which includes cleaning your burners and crossover tubes.