Water heater
I have a Surburban SW6D water heater that won't light. I changed the gas valve, still won't light. Any suggestions?
Forum Discussion
1st .....
Stop throwing parts at it.
Failed gas valves are not common issues.
Uses a 'spark electrode' for high voltage spark and main flame proving (no thermocouple----no pilot)
Does it SPARK?
Have someone turn switch ON while you are out at WH and can see/hear spark electrode fire...CLICK, CLICK, CLICK
No spark.....
Check for tripped Hi temp T-stat
Rubber cover with 'Push to Reset'
Left button is for propane Hi temp T-stat reset.
If tripped you will feel it reset....resistance
If not tripped then you need to troubleshoot further by testing/measuring DC voltage ....from Main FUSE to switch to junction box (backside of tank) to t-stats (RED wire--outside compartment) to control board (RED wire--mounted inside rv close to WH) to Gas Valve (Black wire)
Blue wire....fault light
Yellow wire ...Ground
Spark electrode...mounting screw used as ground for spark assembly
Good grounds/good DC voltage---good spark---good flame
Stop throwing parts at it.
Failed gas valves are not common issues.
Uses a 'spark electrode' for high voltage spark and main flame proving (no thermocouple----no pilot)
Does it SPARK?
Have someone turn switch ON while you are out at WH and can see/hear spark electrode fire...CLICK, CLICK, CLICK
No spark.....
Check for tripped Hi temp T-stat
Rubber cover with 'Push to Reset'
Left button is for propane Hi temp T-stat reset.
If tripped you will feel it reset....resistance
If not tripped then you need to troubleshoot further by testing/measuring DC voltage ....from Main FUSE to switch to junction box (backside of tank) to t-stats (RED wire--outside compartment) to control board (RED wire--mounted inside rv close to WH) to Gas Valve (Black wire)
Blue wire....fault light
Yellow wire ...Ground
Spark electrode...mounting screw used as ground for spark assembly
Good grounds/good DC voltage---good spark---good flame
