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BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22389
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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I have a Goodman gas furnace that sounds like a mini explosion

Resolved Question:

I have a Goodman gas furnace that sounds like a mini explosion (late ignition) each time that it starts up.
Submitted: 6 years ago.
Category: HVAC
Expert:  BillyHvac replied 6 years ago.


You are most likely correct. If the burners are dirty. it allows gas to build up before it becomes ignited...this can happen at the very start and also a few seconds later.


To improve this the burners need to be cleaned out. If issue persist after that it could be a low pressure problem requiring a service tech to measure pressure.



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