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I have a Maytag MDE9700 dryer bought in the US and now in Australia we have wired it up through a step down transformer and are getting the FE error code, looking through the instruction information it's saying invalid power frequency sense circuit. I realize the difference between 50 and 60 Hz, but in this case we are talking about an electric motor and heating elements, that should still run. Is there a way of bypassing the sensory circuit, realizing the motor may run slower.

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  • Tony Adams Mar 28, 2011

    Thank you very much for the information, I have it wired with two hot 120 V wires to the two outer terminals and the neutral in the middle from an 8000 W step down transformer, from 240 V to 110 V. The internal light works all the lights come on it all looks like it's going to work, and then it gives the FE error code. Somewhere it's sensing we are running on 50 Hz not 60 Hz the handbook says the error code means invalid power frequency. I think it I have the wiring right, that's all it can be but I'm not sure how to get around that problem.


  • Tony Adams Mar 28, 2011

    Thanks again, I gave it a try but it plays the same as music with the FE code still flashing.

  • Tony Adams Mar 28, 2011

    I have a Maytag MDE9700 dryer bought in the US and now in Australia we have wired it up through a step down transformer and are getting the FE error code, looking through the instruction information it's saying invalid power frequency sense circuit. I realize the difference between 50 and 60 Hz, but in this case we are talking about an electric motor and heating elements, that should still run. Is there a way of bypassing the sensory circuit, realizing the motor may run slower.

    I have it wired with two hot 120 V wires to the two outer terminals and the neutral in the middle from an 8000 W step down transformer, from 240 V to 110 V. The internal light works all the lights come on it all looks like it's going to work, and then it gives the FE error code. Somewhere it's sensing we are running on 50 Hz not 60 Hz the handbook says the error code means invalid power frequency. I think it I have the wiring right, that's all it can be but I'm not sure how to get around that problem.

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  • Dryers Master
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I have the service manual for this dryer 16025911 (manual number) and I read everywhere I could to see if there was a way to bypass the frequency sensor. It is part of the main board unfortunately and it is not adjustable or bypassable.

Deep into the manual on page 41 of 58 there is the statement that I can not copy and paste but have retyped verbatim:
Maytag dryer models manfactured for operation on 60Hz AC are not designed for use on 50Hz AC electrical service and conversion of the product from 60 Hz to 50 Hz is not recommended.

I know this answer was not even close to what you wanted to hear. Possible alternative... ?? Portable but fairly large (30 amp load) portable Generator running at 3600 RPM / 60 HZ. ( I really tried to think of any economical way to help you out here but unless you can trick the 50 Hz frequency into performing at 60 Hz your dryer is not going to work.
As you said the motor and heating elements do not care 50 / 60 Hz... but the control board is the heart and the heart you have can not operate at 50 Hz.

Kelly

Posted on Mar 28, 2011

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  • Dryers Master
  • 8,220 Answers

I would not be concerned about the 50 or 60 hz. I would be more concerned with the motor is 120 volt whilst the 5000 watt heating element is 240 volts. The power on dryers in the US is based on a neutral with 2 hot legs L-1 and l-2. The motor uses a circuit that is L-1 and neutral. The heater requires L1 AND L-2 I have a Maytag MDE9700 - themobilian_2075.jpgAs yall can see on this diagram they is plainly 2 hot wires Red and black and one neutral white wire. On American dryers that white and black wire runs the motor. Another circuit powers the heating element using red and black. Hope this helps ya.

Posted on Mar 28, 2011

  • Dan Webster
    Dan Webster Mar 28, 2011

    What yall could do is reverse the 2 hot woes and see if the machine agrees with that.

  • Dan Webster
    Dan Webster Mar 28, 2011

    Wires oopz

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