Common faults with vented tumble dryers how to diagnose problems and repair

by / Thursday, 18 January 2018 / Published in Tumble Dryers

How to find faults with White knight tumble dryers

White knight tumble dryers are reasonably easy to work on,  if you don't know how they work then it's hard to find the fault. and if you don't have anybody to help you out and give you a few hints then this video will! they were made by Crosslee and manufactured them for a lot of brands like Bauknecht, Bosch,  Electrolux, Frigidaire, Hygena, Ignis, Laden, Neutral, Philips, Radiola, Thorn, Tricity Bendix, Whirlpool, White Knight, Zanussi,  

This video is on a White knight tumble dryer but can be used for general faults on most makes.

While you finding the problem, do take the opportunity to clear all the fluff you can out of the dryer, as it improves the useful lifespan of your White knight tumble dryer and prevents it become a fire hazard.

Before you start any investigation of the fault or even remove the lid of your tumble dryer please watch our videos and fully understand them in full and pay particular attention to the safety and information notices

Please remember to support our site by buying spare parts from our store and, if you decide we really helped you can always share the site with friends.

There are loads of video below to help you repair your tumble dryer condenser or vented and they will help you with all these makes listed above that are made by  Crosslee.

White knight Tumble dryer, not heating
• Possible heating element fault
• Possible rear thermostat
• Possible cut out thermostat system
• Possible forward thermostat
• possible program timer fault
• Possible relay on PCB or faulty circuit board 

White knight Tumble dryer not turning
• Snapped or broken belt
• Capacitor on the motor 
• Motor fault
• Possible timer fault or relay on the circuit board
• Broken wire or bad connection

White knight Tumble dryer not drying quickly in allocated time
• Kink or blockage in venting tube
• One side of the heating element may have gone faulty therefore only drying on half heat
• Fluff build up in the ducting tube or vent pipes
• Faulty circulation fan blade
• Fluff build up on circulation fan

White knight Tumble dryer not starting
• Possible door lock fault
• Possible switch pin
• Possible relay fault on the board or timer fault
White knight Tumble dryer not finishing cycle
• If the machine keeps running then faulty timer or if it has auto sensor then it may have faulty NCT sensor.


12 Responses to “Common faults with vented tumble dryers how to diagnose problems and repair”

  1. David Burgess says : Reply

    Replacement door for condenser white knight 6kg.

  2. Paul Smith says : Reply

    The mechanical timer on my White Knight tumble dryer Model 44AW, has stopped working. Can this be repaired or replaced?

  3. Gareth says : Reply

    Hello I have a white knight c427wv when it’s loaded the drum won’t start to turn ,It does try to I just get a electrical buzzing noise,once I reduce the load it runs ,but starts slowly but does dry the clothes properly .Its not overloaded and clear of blockages and clear of fluff could you please give me some advice thank you

  4. ian says : Reply


    i am an electrical engineer , can i get a schematic for a baumatic btd1 ?



  5. terry greaves says : Reply

    I have a White Knight 427WV that is making a loud grinding noise when the drum revolves. Could you lease advise what may be causing this noise?

  6. Lee says : Reply

    Drum not turning but if give a little push starts up ok belt seems ok on drum slight smell of burning any help much appreciated

  7. Annette says : Reply

    W knight dryer taken top off as drum not turning if you push it round by hand it goes for a short time does heat up
    Would buy another one but as it’s 3kg no one seems to sell them
    Asked W K waiting for a reply

  8. Vivienne Mcclure says : Reply

    My tumble drier (white knight) has a burning smell coming from it

  9. Marek Lenartowicz says : Reply

    White Knights vented dryer, had trouble with moisture so took vent off but to get to the front where filter was tried to take front panel off and now the switch at the top of the door has dislodge (I did undo the screws thinkink this was what was hold the front panel). Do i need to disconnect the switch electric and take the top panel off to get to switch?

  10. Graeme Atkinson says : Reply

    The dryer starts then stops after 5 – 10 mins, the display just turns off…….C86AW…any suggestions would be greatly appreciated.

  11. Gordon Young says : Reply

    My white knight tumble drier wont heat up the element is not pitted the red light just flashes when i switch it on but no heat

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