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    rbaker22's Avatar
    rbaker22 Posts: 1, Reputation: 1
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    #1

    Oct 9, 2012, 06:28 AM
    Troubleshooting a Intertherm Furnace
    I have an Intertherm furnace model mmha056aahr05. Glow plug lights burner starts then shuts down. 3 blinking lights on the code says gas valve error or false flame sensed. Any ideas on problem solving or where can I get a manual
    Thank You
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Oct 9, 2012, 06:35 AM
    I have an Intertherm furnace model mmha056aahr05. Glow plug lights burner starts then shuts down. 3 blinking lights on the code says gas valve error or false flame sensed. any ideas on problem solving or where can i get a manual
    Thank You


    Clean flame sensor with steel wool or sand paper.

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