Suburban model SW16DE water heater
I have a 4 year old Suburban water heater that runs on either propane or electric.The electric is intermittent,(I have to push the reset button), and the gas side doesn't work at all.On the electric s...
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Suburban uses 2 separate sets of t-stats to control heating
One set is for electric and one set is for propane
They are located under 'Reset' cover in outside compartment
You having to 'reset' to get electric to heat means the 'Normal' temp t-stat has failed and the ECO (high temp t-stat) is opening (that is what you have to reset---the ECO)
120V AC set is on left side (black wires---ECO top/normal bottom)
Come as a set for electric element control
12V DC set is on right side (red wires----ECO top/normal bottom)
Come as a set for propane control
Replace the 120V AC set and electric should function w/o having to reset all the time
12 DC Voltage comes from converter (when AC power available) OR from Battery (w/o AC power)
Propane......
*DC power for propane comes from DC Dist. Panel ----FUSE (find and test that it is good---test it don't just LOOK)
*12V DC feeds FUSE....then to ON/OFF Switch.
*From On/Off Switch to/thru DC set of t-stats
*From t-stats to circuit board (back corner of water heater)
*From circuit board to spark electrode and to gas valve solenoids at same time for 5-7 seconds.
So trace DC Voltage from FUSE to Switch to t-stats to circuit board to spark electrode/gas valve solenoids.
One set is for electric and one set is for propane
They are located under 'Reset' cover in outside compartment
You having to 'reset' to get electric to heat means the 'Normal' temp t-stat has failed and the ECO (high temp t-stat) is opening (that is what you have to reset---the ECO)
120V AC set is on left side (black wires---ECO top/normal bottom)
Come as a set for electric element control
12V DC set is on right side (red wires----ECO top/normal bottom)
Come as a set for propane control
Replace the 120V AC set and electric should function w/o having to reset all the time
12 DC Voltage comes from converter (when AC power available) OR from Battery (w/o AC power)
Propane......
*DC power for propane comes from DC Dist. Panel ----FUSE (find and test that it is good---test it don't just LOOK)
*12V DC feeds FUSE....then to ON/OFF Switch.
*From On/Off Switch to/thru DC set of t-stats
*From t-stats to circuit board (back corner of water heater)
*From circuit board to spark electrode and to gas valve solenoids at same time for 5-7 seconds.
So trace DC Voltage from FUSE to Switch to t-stats to circuit board to spark electrode/gas valve solenoids.
