Suburban Water Heater gas will not shut off
Hey everyone, thanks for this great community! We have a 2009 K-Z Coyote LE with a Suburban hot water heater. Tested the water heater today, only to discover a small flame (like a candle flame) rig...
Forum Discussion
There are NO Individual Shut-Off so with propane valved in you will have propane up to AND thru the water heater Gas Valve
You have TWO Issues:
TURN OFF PROPANE
1) In order to have the small flame where you have indicated with the Yellow Circle you have to have some 'Blow Back' as that area is the air venturi opening......ignition source is all the way at other end of burner tube.
So for Flame to be there in venturi area the Main Flame had to come back up the burner tube....THAT is due to dirty Combustion Chamber/Burner Tube
You should remove burner tube///clean it out, clean the Combustion Chamber (run a wire thru it and out exhaust/tie rag to the wire and pull it back thru (have to remove exhaust shield)
Clean orifice by soaking in alcohol Air Dry (No High Pressure air or Poking anything thru it)
Reassemble and TURN Propane Back ON
2) Gas Valve IS leaking thru....springs inside the solenoids CLOSE the valve
Both Solenoids have to be working in order to OPEN valve
Could just be some debris in the Gas Valve not allowing it to fully close.
Cycle the Gas Valve couple of times......Fire it Off---let Main Flame burn for a minute or so then turn switch off. Repeat and tap solenoids each time
Check with sniffer if gas is still leaking thru
NO.....might be OK (probably show replace anyway)
YES......TURN OFF PROPANE and LEAVE OFF until New Gas Valve is installed
You have TWO Issues:
TURN OFF PROPANE
1) In order to have the small flame where you have indicated with the Yellow Circle you have to have some 'Blow Back' as that area is the air venturi opening......ignition source is all the way at other end of burner tube.
So for Flame to be there in venturi area the Main Flame had to come back up the burner tube....THAT is due to dirty Combustion Chamber/Burner Tube
You should remove burner tube///clean it out, clean the Combustion Chamber (run a wire thru it and out exhaust/tie rag to the wire and pull it back thru (have to remove exhaust shield)
Clean orifice by soaking in alcohol Air Dry (No High Pressure air or Poking anything thru it)
Reassemble and TURN Propane Back ON
2) Gas Valve IS leaking thru....springs inside the solenoids CLOSE the valve
Both Solenoids have to be working in order to OPEN valve
Could just be some debris in the Gas Valve not allowing it to fully close.
Cycle the Gas Valve couple of times......Fire it Off---let Main Flame burn for a minute or so then turn switch off. Repeat and tap solenoids each time
Check with sniffer if gas is still leaking thru
NO.....might be OK (probably show replace anyway)
YES......TURN OFF PROPANE and LEAVE OFF until New Gas Valve is installed
