Tumble dryer not heating Check element & Thermostats White Knight

by / Monday, 12 February 2018 / Published in Heating Systems, Tumble Dryers

Tumble dryer not heating correctly

If your Tumble Dryer is not drying quickly of not heating at all. then you may have a problem with the heating circuit. this video will help you Check element & Thermostats on a White Knight dryer plus some models from & some Bosch, Caple, Crosslee, Electrolux, Kenwood, Tricity, Tricity Bendix,

if you are still having trouble please contact us using your full model number including the product number for help from Paul

Changing your Heating element can keep your tumble dryer running at peak efficiency and drying correctly

Safety first! Unplug the machine from the electrical supply and make sure the machine has been idle long enough so that the heater has cooled down.

 Tumble Dryer not heating or drying correctly on White Knight & some others

if you'll tumble dryer is not heating at all or is drying the clothes slowly, then you may have a problem with one of the following items.

  • the thermostats may not be working correctly or have gone open circuit.
  • the element may have failed or partially failed: meaning only one side of the heating element is working.
  • or it is possible that you have a restriction on the airflow this could be due to poor maintenance and the Machine may just need a good service and clean,

Stip down prosses 

  • first, take the lid off
  • You will need to remove the lower panel which covers the vent hose, at this point, you will be able to get access to the forward thermostat also known as the cycling stat.
  • it is possible to test the element institute without removing the back panel just disconnect the wires on test across both sides of the element.
  • to gain access to the element you will need to remove the wiring from the back panel make sure you take some photographs as this will help you reassemble it.
  • After that, you will be able to remove the back panel and then extract the old tumble dryer heater  out of the machine,
  • you can then fit the correct new element or thermostats
  • You will then be able to rebuild the machine lining the belt up on the drum correctly.
  • I have also included a load of tumble dryer videos below to assist you in other repairs in the future.

Once a year vacuum the inside taking special care on the wiring, it is very important to clean all the vent tubes on a regular basis. Clean the heat exchanger (condenser dryers only)

We hope this tutorial helped you get your tumble dryer working again!


This is what came out of one machine i serviced potential fire hazard

You will be amazed at what you find

you should clean the filter every time

6 Responses to “Tumble dryer not heating Check element & Thermostats White Knight”

  1. Chris Scott says : Reply

    White Knight CL372WV not heating. Replaced element and rear thermostat and still nothing. I’m stuck as where to go now. I daren’t spend anymore cash on this old dryer. Can anyone help.

  2. Duncan MacCallum says : Reply

    Hi Paul,
    I have a White Knight tumble dryer, model CL 432 WV. Everything works OK except that it doesn’t heat the air. I have dismantled it and tested the heaters and three thermostats with my multimeter No open circuits reported. I gave it a good clean out and re-assembled it (you never know) but it remains as before; running but not heating. Do you have any thoughts? It is more than 20 years old so it doesn’t owe us anything but I prefer to repair things if I can. New Items never seem to have the same quality as old ones.
    Thanks for your excellent ‘how to’ guides.
    Thanks in advance.

  3. John Carter says : Reply

    White knight C767C is getting warm but not hot, clothes take a long time to dry.

    I replaced the pump, the old one was seized, still not collecting water.


  4. help says : Reply

    my tumble dryer isnt giving heat it’s a c372wv one can you help please


    Hello good day,
    Please my bosch dryer wte86184 will work for five minutes and stop until I restart it and yet it’s still won’t dry and not heating up,have cleaned all the necessary place I need to clean but yet the same thing, after working for five minutes,the first and the fourth light will blink trice with fault sounds and stop,what can I do to make it work back


  6. John Shore says : Reply

    Hi Paul,
    White Knight WHGX91C Electronic Sensing, no longer going into cooling cycle, stops without showing green light to indicate cycle end. Stops with very hot load.
    Thermostats and element test ok. Fluff free. Any ideas?

24h technical help answers

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