Tumble dryer motor overheating (LG TDC70080E)

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  • #52533
    South74
    Participant

    I have an LG TDC70080E which cuts out after about 10mins use and says ‘clean filter’.

    I have had the unit apart and I am pretty sure it’s the motor that is over-heating.

    If you wait 20 mins or so it will start again. All the controls are ok, it just won’t work when hot. I think the motor has an automatic cut-out when it gets hot.

    The overheating is not dependent on any particular load. I have tested with almost nothing inside and I get the same overheating result.

    There are no ventilation issues… I’ve had the machine apart a few times replacing the belt and the main capacitor, so I know my way round it. All the filters and air passages are clean and there’s nothing else wrong as far as I see.

    Any advice? Could it be the capacitor again or is it a new motor??

    Thanks in advance for any advice/assistance.

    #312164
    bazza500
    Participant

    Re: Tumble dryer motor overheating (LG TDC800E)

    The only way to be sure is to let it overheat, unplug it and test the continuity of the motor windings before it has time to cool. This way you would be sure it’s the motor cut-out operating.

    #312165
    South74
    Participant

    Re: Tumble dryer motor overheating (LG TDC800E)

    Thanks – how do I test the continuity of the motor windings?
    Is there a particular indicator, eg resistance across two points?
    What is a good and/or bad reading?

    Thanks in advance.

    #312166
    South74
    Participant

    Re: Tumble dryer motor overheating (LG TDC800E)

    I found this – I guess this is what I need to do?
    http://www.bobvila.com/HowTo_Library/Te … F2239.html

    To test an appliance motor:
    1. Make sure that the power cord wires are disconnected from the motor. If it is easy to do, remove the motor from the appliance, though motors can be tested in place.
    2. To test continuity (the flow of electricity) through the motor, set the multimeter on the RX1 scale to measure resistance (in ohms). The multimeter’s internal battery will send a small electrical current through the motor’s wires.
    3. Attach one of the multimeter’s probes to the motor’s common lead, usually white.
    4. Attach the other probe in turn to each of the other wires on the motor. The probe will be checking to see if it can measure the multimeter’s input signal at the output. A low or moderate reading (in ohms) means the component is okay. A zero or infinite reading means the motor’s windings or another component has a short.
    5. If it tests faulty, replace the motor with one of the same type, power rating, and size.

    #312167
    South74
    Participant

    Re: Tumble dryer motor overheating (LG TDC70080E)

    All back working perfectly now… thanks.

    It was definitely the motor.

    I replaced the motor (and the main capacitor – just to be safe) and it’s all fixed. I have a happy wife again!

    [FYI… New motor & capacitor was under £50 from SEME nedis…]

    😀

    ps. if anyone else has to replace a motor – just remember that the fans attached to either end of the motor have opposite threads!

    #312168
    Worcs1978
    Participant

    Hello, I pressed the red button on the thermostat and it worked for 10 minutes. Now we are getting the clean filter message. All filters are clean. Is there a dummies guide to my way round the dryer so I can save calling an engineer out?

    #312169
    steviesparx
    Participant

    Worcs1978 wrote:Hello, I pressed the red button on the thermostat and it worked for 10 minutes….Is there a dummies guide to my way round the dryer so I can save calling an engineer out?

    Dummies should always call an engineer out ! :rolls:

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