Question about Heating & Cooling
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Posted on Jan 02, 2017
SOURCE: I have a Raypak pool
Usually not the gas valve unless line voltage was applied to it. Millivolt systems are very touchy about connections. First check the output of the millivolt generator (thermopile) the wires for this usually go straight to the gas valve they should be one red and one white usually in a high temp fiber glass sheath. The wires will lead from the gas valve to a rod by the pilot. Test between the two wires with a meter that can read mV DC. You should have somewhere in the neighborhood of 450-600mV DC. If you do not, then the thermopile is bad. If you do, then it is either a bad connection somewhere or an open safety in the circuit. Check all of the safety devices and clean all of the connections in the unit with sandpaper. Usually for safety devices there will be a high limit on the discharge of the header, a pressure switch sensing water pressure, and a rollout switch or two in the control compartment above the burner. Good luck, I have to battle with mV systems all the time at work, usually it's just a bad connection.
Posted on Jul 03, 2008
SOURCE: GAS WATER HEATER PILOT LIGHT
It could only be the following problems: Therm couple failed, gas valve failed. Therm couple is the cheaper fix it, so it would be your best first try.
Posted on Dec 05, 2008
If the burners do not fully ignite, the sensor will shut the furnace down. The lack of sufficient burner flame is a gas valve or gas pressure problem within the valve.
Replacing the gas valve with the original one may get you going. I surely suggest a professional service company for safety reasons and a thorough inspection. A 20 year old furnace is past it's normal life span.
Posted on Jan 06, 2009
make sure the pilot light stays on. look for a reset button which could be an overheat stat tripped. check to see if the thermostat is set up above the pool temperature.
Posted on Mar 26, 2009
if you have a gate valve on the unit from the hot water tank it could be as simple as the valve on the gas system being clogged going to that bathroom,, from how it is described it sounds like that would be the problem check to make sure all valve are not stuck in the on position ans change the valve if it is frozen in place
Posted on Jun 06, 2009
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