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Posted on Dec 10, 2018
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I have a Honeywell smart valve. The pilot flame stays on but not the main burner. I changed the ignitor and the flame rod already. No improvement. Please help! Thank you. Valve number is SV9500M.

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Andy

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  • Master 572 Answers
  • Posted on Dec 11, 2018
Andy
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You valve might be bad

Paul Carew

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  • Honeywell Master 3,808 Answers
  • Posted on Dec 11, 2018
Paul Carew
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Check air filter is not blocked .

Testimonial: "The air filter is clean. In fact, I removed the filter to test for air obstruction. Thanks any way."

  • Paul Carew Dec 11, 2018

    if pilot is on and you have no gas check you have power from the room thermostat to the gas valve . It also could be the valve stuck close not letting the main gas through .

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Anonymous

  • 1420 Answers
  • Posted on Nov 09, 2009

SOURCE: My Furnace does not turn on. Installed a new

Assuming the inducer fan and pressure switch are working fine, your next step is to test the voltage coming to the gas valve. There should be 4 wires going to the gas valve, one is black. This is the 24 volt power side. Unplug the molex connection at the gas valve and while the inducer is running test for 24 volts AC. If you get voltage you have a bad valve. If no voltage you have a bad circuit board. Test the safety circuit and roll-out sensors to make sure all switches are closed. Check for continuity across the switches.

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Anonymous

  • 455 Answers
  • Posted on Oct 15, 2010

SOURCE: I have a sv9500m 2674

Hello,If you cleaned the flame sensor and it is in the pilot flame,Try adding a ground wire from the pilot assembly to any close screw to boost the (pilot on) signal.Also if the valve has been sitting for a while give a tap once during (pilot on) to make sure the diaphram is just not hung up.I would hate to replace the valve and still have the same problem.

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