Sububan hot water heater - not hot
I am camped next to a motor home that is having HW issues and I am trying to help him... The HW heater is a Suburban gas / electric / auto ignition model that until yeaterday has gone dead... It will...
Forum Discussion
Suburban uses two (2) separate/independent systems----12V DC for propane and 120V AC for electric.
120V AC is wired directly from AC circuit breaker to AC junction box on side of tank to ON/OFF switch in outside compartment to/thru Hi/Normal set of t-stats to electric element and then to neutral. (Does NOT use control module or 12V DC to function)
12V DC is wired from DC Dist. Panel fuse to ON/OFF switch to DC junction box on opposite side of tank to/thru Hi/Normal set of t-stats to control module which DC power to gas valve solenoids and spark electrode.
One system failure would not affect other system.
Check if Hi t-stat(s) have tripped------------'Push to Reset' rubber cover in outside compartment
Left side is 120V AC set and Right side is 12V DC set
Check that electric On/Off switch is ON in outside compartment for electric
Blown DC fuse, tripped AC circuit breaker, loose connections in junction box(s), bad connections on t-stats, shorted wire(s)----check wiring to/from t-stats
Digital voltmeter and start checking where power is and isn't------AC & DC
Visual checks of connections on t-stats
Good/clean/tight grounds
120V AC is wired directly from AC circuit breaker to AC junction box on side of tank to ON/OFF switch in outside compartment to/thru Hi/Normal set of t-stats to electric element and then to neutral. (Does NOT use control module or 12V DC to function)
12V DC is wired from DC Dist. Panel fuse to ON/OFF switch to DC junction box on opposite side of tank to/thru Hi/Normal set of t-stats to control module which DC power to gas valve solenoids and spark electrode.
One system failure would not affect other system.
Check if Hi t-stat(s) have tripped------------'Push to Reset' rubber cover in outside compartment
Left side is 120V AC set and Right side is 12V DC set
Check that electric On/Off switch is ON in outside compartment for electric
Blown DC fuse, tripped AC circuit breaker, loose connections in junction box(s), bad connections on t-stats, shorted wire(s)----check wiring to/from t-stats
Digital voltmeter and start checking where power is and isn't------AC & DC
Visual checks of connections on t-stats
Good/clean/tight grounds
