Hot water heater makes loud boom
We bought a used Coachmen 321TS fifth wheel, when we use the inside wall igniter button to start up gas hot water heater, it makes a loud combustion sound like boom, what can be done to fix this?
Forum Discussion
BOOM is due to dirty obstructed chamber...spider webs/dirt dabbers and a disrupted air/fuel mixture
Clean combustion chamber and burner tube.
Remove burner tube/spark electrode and then run a small bottle brush thru burner tube
Then run a wire thru combustion chamber until it comes out exhaust....tie a rag to wire then pull it back thru chamber.
When reassembling check that burner tube is in a straight line in regards to main gas orifice (gas should flow straight done tube...not bounce off walls of tube)
Flame spreader on end of burner tube should be 'squared' with end of tube.
And main flame needs to engulf tip of spark electrode
Clean combustion chamber and burner tube.
Remove burner tube/spark electrode and then run a small bottle brush thru burner tube
Then run a wire thru combustion chamber until it comes out exhaust....tie a rag to wire then pull it back thru chamber.
When reassembling check that burner tube is in a straight line in regards to main gas orifice (gas should flow straight done tube...not bounce off walls of tube)
Flame spreader on end of burner tube should be 'squared' with end of tube.
And main flame needs to engulf tip of spark electrode
