Heil furnace high eff

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    • #285041
      Avatar photoluv2fish

        Electrically control pilot light is on but the main gas valve is off. All sensors and relay are checked OK. The exhaust blower runs . It did go on for a shot time. Help.

      • #308156
        Avatar photoRobert
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          : Electrically control pilot light is on but the main gas valve is off. All sensors and relay are checked OK. The exhaust blower runs . It did go on for a shot time. Help.check for 24v at gas valve. yes-bad gas valve. no-bad circuit board.(control mod.)

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