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Forced air heater lites but blower run a few minutes and shuts down. Service board blinks seven times. don't have manual

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  • Norman Moore Mar 12, 2009

    I Have A Coleman Evcon Forced Air Natural Gas Heater. About 5 Yrs Old The gas lites the blower comes on and then shuts down in a few minutes. Board Blinks seven times

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Watch The Unit's Ignition Process See If The Unit Is Getting Fire Most Likely It Needs A New Thermostat. The Thermostat If Bad Will Cause The Unit To Turn On Ignite But Will Not Detect The Heat From The Flame And Then Shut Off The Gas To Protect The Home From Carbon Dioxide.
If The Unit Fails To Light At All Check The Igniter.
I Hope This Helps,
Sincerely,
Michael Scott

Posted on Mar 12, 2009

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Hi!

Please tell me the make and model number to provide you the solution.

Posted on Mar 12, 2009

  • Rylee Smith
    Rylee Smith Mar 12, 2009

    Bkinking light 7 times means "Lockout Caused By No Ignition". And if this fault is false then it will reset itself automatically after one hour, when the heater is turned off.



    Please check for Defective Solenoids. They are on top or inside the body of the gas valve body. Solenoids also supply voltage to a glow coil {if applicable}gas to the pilot flame {if applicable} main burner gas and or other parts and componets of the entire electrical loop.



    Also, check theFlame Sensor. It is located on the burner or near the pilot assembly. If it's defective, it will cause the glow coil to not function. You can test this part with a continuity tester/multimeter.

    Try cleaning the flame sensor element and check the range.



    Please ask for any clarifications.



    Thanks

    Rylee




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Clean the Air Filter.... 
switch off the ac for a hr...

Posted on Mar 12, 2009

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Hi, the control panel has some issues. the board is damaged. you will need to purchase a replacement board. there are resistor issues as well.

Posted on Mar 12, 2009

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