Suburban Water Heater won't light
Have done all kinds of searches but am still confused. I have a Suburban SW6DE heater that will not light on propane. It was fine when stored a year ago but now does not work at all other than on shor...
Forum Discussion
Gas Valve Malfunction
With power supplied to ignitor, sparking should occur and the gas valve should open simultaneously.
If sparking occurs but the valve does not open, check the following
a) Place a voltmeter between terminal 4 on the input connector and ground (or across the valve).
Recycle the ignitor by turning the ON/Off switch to "off" for 5 seconds and then back on to determine if voltage is present at the valve.
b)If voltage is present and the valve still does not open, remove wires from valve terminals and retest the valve on a known voltage source.
If valve still does not function, it should be replaced.
c)Check the circuit board connector for good connections.
d)If voltage is not present at terminals 4 and 6 or at the valve, replace the circuit board.
The above info from this service manual......LINK
The gas valve solenoids get power at same time ignitor does....for 6-8 seconds so you will need a helping hand to turn ON/OFF while you test for 12V.
With power supplied to ignitor, sparking should occur and the gas valve should open simultaneously.
If sparking occurs but the valve does not open, check the following
a) Place a voltmeter between terminal 4 on the input connector and ground (or across the valve).
Recycle the ignitor by turning the ON/Off switch to "off" for 5 seconds and then back on to determine if voltage is present at the valve.
b)If voltage is present and the valve still does not open, remove wires from valve terminals and retest the valve on a known voltage source.
If valve still does not function, it should be replaced.
c)Check the circuit board connector for good connections.
d)If voltage is not present at terminals 4 and 6 or at the valve, replace the circuit board.
The above info from this service manual......LINK
The gas valve solenoids get power at same time ignitor does....for 6-8 seconds so you will need a helping hand to turn ON/OFF while you test for 12V.
