Power Signal Pilot
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 300Warning Power Signal Pilot Light Bulb Wire 230V7R  US $149.99
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 200Warning Signal Pilot Car Boat Power Light 3V 6V9R US $99.98
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 200Warning Power Signal Pilot Light Bulb Wire 230V7R US $99.98
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 100Warning Signal Pilot Car Boat Power Light 3V 6V9R US $49.99
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 100Warning Power Signal Pilot Light Bulb 6V 9V 12V7R US $49.99
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 100Warning Power Signal Pilot Light Bulb w Wire 24V7R US $49.99
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 100Warning Power Signal Pilot Light Bulb Wire 120V7R US $49.99
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 100Warning Power Signal Pilot Light Bulb Wire 240V7R US $49.99
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 100Warning Power Signal Pilot Light Bulb Wire 230V7R US $49.99
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 100Car Boat Audio Signal Power Pilot Light Bulb 24V8W US $49.99
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 100pcsWarning Signal Pilot Car Boat Power Light 12V9R US $49.99
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 50Warning Power Signal Pilot Light Bulb w Wire 120V7R US $24.99
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 14Warning Power Signal Pilot Light Bulb w Wire 24V7R US $10.99
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 14Warning Power Signal Pilot Light Bulb Wire 120V7R US $10.99
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 14Warning Signal Pilot Car Boat Power Light Led 36V9R US $10.99
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 14Car Boat Audio Signal Power Pilot Light Bulb 24V8W US $10.99
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 10Warning Signal Pilot Car Boat Power Light 3V 6V9R US $9.99
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 14Warning Signal Pilot Car Boat Power Light bulb12V 9R US $9.99
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 14Warning Signal Pilot Car Boat Power Light 3V 6V9R US $9.99
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 14Warning Power Signal Pilot Light Bulb Wire 240V7R US $9.99
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 14Warning Power Signal Pilot Light Bulb 6V 9V 12V7R US $9.99
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 4Warning Signal Pilot Car Boat Power Light Led 36V9R US $4.99
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 4Car Boat Audio Signal Power Pilot Light Bulb 24V8W US $4.99
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 2 Warning Power Signal Pilot Light Bulb w Wire 120V7R y US $1.95
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Could a millivolt thermopile control 2 valves seperatly?
Honewell VS820A gas valve which uses a 750 mv powerpile generator. The pilot stays lit, but gas doesn't flow to the burners when system is turned on. Could the thermopile be getting just enough power to keep the pilot valve open, but not enough power to open the main valve? Or does it only have the ability to send out one signal opening them both together?
So, just so I understand correctly...If the thermopile controls them seperatly then I could just buy a new one. But, if it controls them together, then the thermopile is fine and it's the main valve that must be stuck inside and I need to but a whole new box?
The powerpile does control the pilot gas valve (I disconnected the 2 wires and pilot went out)
It is possible that the generator is putting out just enough to operate the pilot valve, but not enough to open the gas valve. And, since generators are relatively inexpensive (compared to gas valves) it is definitely worth trying that first.
Before you do anything else though, check, clean and tighten the electrical connection at the gas valve. The voltage is so low that a dirty connection there can cause the problem.
If you have a millivolt range meter, test it, but, since they cost about as much as the part, it may not be worth it.
Millivolt generators usually last between 7 and 10 years.
Pilot power-supply filters
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