Question about Amana Air Conditioners

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The electric heat kit for my amana air handler is not coming on. I am looking for simple checks that a I can perform to see if it is something simple. Primary Power is fine. I am looking for direction on what to check next.

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  • V2A2 Nov 22, 2008

    Model number is an EDK07A.



    Primary power is at 240V.



    All Connections are solid.



    Control board fuse is intact and verified.

  • V2A2 Nov 22, 2008

    The fan comes on, but the heater assembly does not

  • V2A2 Nov 22, 2008

    Transformer control voltage has been verified good (25V)

  • V2A2 Nov 22, 2008

    The blower motor spins fine. I have placed an AMP meter on the blower motor and it is running well within specifications. I have also tested the low voltage side with the AC, and it operates normally, controlling both the AC unit and the blower motor.



    The problem appears to be limited to the Electric Heater Kit.

    -The fusable links on both heater elements are intact



    The only components remaining are:

    -TL (Temperature Limit)

    -2x Relays (one for each heater element)



  • V2A2 Nov 22, 2008

    Thank you for the insite. Since the thermostat was operating for the cooling side, I never though about checking to ensure all the heating side wiring was properly installed. It was not.

    The house is a 4 year old home with a secondary air handler for the FROG. The original owners must have had the thermostat set so low, they never noticed the lack of heat, as we have mild winters in eastern TN. Wiring for the heater element relay was not attached, thus the fan would kick in, but the heater elements would not turn on.

    Thanks Again ......... You Rock!!!

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  • Master
  • 6,966 Answers

Hi,

As you posted, it would seem that the issue is limited now to just the:

  • temperature limit (TL), test is continuity, it is a thermally activated fuse;
  • heater relay which is activated by the control board. Some of the relay contacts could have burned and would require cleaning/scrapping.
Could you please confirm that the wires leading from the control board to the heater relay are orange and brown? If yes, a possible wiring diagram that maybe of reference.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Posted on Nov 22, 2008

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  • Amana Master
  • 19,396 Answers

All you need to check is the heating element (test for continuity), and the thermostat (check if thethermostat is switching on power to heating element)

The job should be done by a technician.

If there is power, but no heat at all, 9 on ten it is a faulty heating element.

Posted on Nov 22, 2008

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  • Master
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Dear Sir/Madam,

Check the motor. Since the fuse in the unit is good you can probably rule out the low voltage side.

The fact that the motor will only spin once isn't very good.

You need to have this tested by someone with the proper test equipment. Also check both the motors and the control board.

Thanks
good luck

Posted on Nov 22, 2008

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  • 276 Answers

I hope the manuals can help u

Posted on Nov 22, 2008

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