Question about RTO Atwood Water Heater - 6 Gal LP
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Posted on Jan 02, 2017
Normal causes for that would be by-pass valve not in proper position, or defective, allowing cold to mix with hot, or thermostat not touching up against tank properly, or defective. Do you know where that thermostat is?
Look where the black foam cover is, with white letters, below pressure relief valve. One is lettered ECO, other THERM. If you note where the wires go, so as not to mix them up , and pull them off, then peel back the foam cover, you'll see 2 little round discs, that are held against the tank by a small spring. They need to be checked that they are in there properly and are up against the aluminum tank.
Posted on Apr 25, 2010
If it has the little thermal cut-off in power wire to thermostat (has a little plastic jacket over it) try removing it, and connect female spade from power wire, directly to male spade on thermostat, and see what happens. Also, make sure electrode is positioned in flame good for flame sensing properly.
Posted on May 26, 2010
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Very simple, do you have a 12 volt light tester, or multimeter?
First thing to try is to remove the thermal cut-off from circuit and try it. That's the little diode like thing inside the plastic sleeve below pressure relief valve. Remove it from the circuit and hook female spade from end, directly to thermostat where other end was before. If that does it, replace thermal cut-off.
If not, start testing for 12 volts when trying to ignite, from one side of thermostat, then over to ECO, or just go directly to gas control connection. If 12 volts getting to gas control, thermostat and ECO are o.k.
Are you getting spark at electrode?
Posted on Aug 28, 2011
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