Hotpoint WD420 dryer problem

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  • #42716
    iadom
    Moderator

    Heres a rarity, a Hotpoint washer dryer that actually heats up on the drying cycle. Not been out to it yet but customer complains that clothes are very hot after drying, no sign of cool down.

    Can’t say I’ve ever had one do this.

    She has the machine on an insurance policy with Norwich Union but is less than happy with whoever they send out to repair it. I have my suspicions as to which Stockport based company are responsible, begins with P 😉

    About 18/24 months ago she paid me up front to change the complete dryer box assy after several visits from this company who kept replacing the TOC.
    This time he called and told her she was talking rubbish, ” they all work like that” Even when she showed him the user manual and pointed out the reference to the cool tumble he fobbed her off with a pretend repair and left it with exactly the same fault.

    Once again in desperation ( she must be to send for me 😆 ) she has asked me to call.

    I suspect main PCB, any other possibilities?

    Jim.

    #274634
    iadom
    Moderator

    Re: Hotpoint WD420 dryer problem

    Strange one this.

    It used to be insured by Norwich Union who in turn sent out the Stockport firm two years ago. They failed to diagnose and cure the fault despite four or five visits. I eventually went and did the complete heater box conversion.

    Machine has been fine until early last year but the insurance policy has been transfered to D&G. The engineer who called twice in April of this year was from Indesit.

    He was adamant that the clothes are always ‘red hot’ when they come out of the dryer and there was nothing wrong with the machine. His invoice shows that he did however fit a main PCB, eeprom & NTC.

    She was rather upset by his attitude and although she felt the fault was exactly the same she has hardly used the machine for drying throughout the summer months.

    She says that on one or two occasions she has seen light 1 flashing ( heater relay fault ).

    Everything checks out visually and electrically. The thing that puzzles me is this, if it is running hot right to the end of the drying cycle, why has the TOC not failed. 😕
    Is the only way to test if the heater is switching off for a cool down period to set it to a short drying cycle and sit and watch it?

    Jim.

    #274635
    Madmac
    Participant

    Re: Hotpoint WD420 dryer problem

    Hook up yer meter to the heater tags & see if it behaves as it should at cool down i would say Jim. Hav’nt seen that fault myself though. 😕

    #274636
    iadom
    Moderator

    Re: Hotpoint WD420 dryer problem

    I do have one of those doofers you can plug into the socket then insert the appliance plug into it. Gives out voltage, power consumption etc. I just didn’t have the time to sit through a drying cycle this morning, I have been snowed under with work since Christmas. 8)

    Jim.

    #274637
    Martin
    Participant

    Re: Hotpoint WD420 dryer problem

    Tricky fault and by the sound of it, tricky customer. 🙁

    Insurance companies have thrown parts at it in the past and yet the fault remains…..hmmmmmmm?:?

    The classic symptoms of hot clothing extracted from a completed dry cycle suggest to me that the machine has been overloaded?

    #274638
    iadom
    Moderator

    Re: Hotpoint WD420 dryer problem

    how do you tell a customer they are mistaken when they insist they are using the machine in exactly the same way they always have and yet the fault was not there for the first two years. 😕

    Jim.

    #274639
    timdowning
    Participant

    Re: Hotpoint WD420 dryer problem

    Difficult one….we all get customers like that unfortunately.
    Sitting with your meter plugged in for 30 minutes has got to be the way forward.

    All the thought you’ve put into this one adds up to more time than that anyway. And you won’t get rid of her any other way.

    #274640
    Martin
    Participant

    Re: Hotpoint WD420 dryer problem

    iadom wrote:how do you tell a customer they are mistaken when they insist they are using the machine in exactly the same way they always have and yet the fault was not there for the first two years. 😕

    As you know most customers haven’t a scooby doo how to operate their machines correctly. Never read the user book and even fill the soap tray with Ecover…..and never ever admit to their misdemeanours….oh no!

    If she won’t confess then try timdowning’s method, spend a while (and her money) on a 30 minute heater – meter test.8)

    #274641
    kiddo66
    Participant

    Re: Hotpoint WD420 dryer problem

    Try changing the wash heater thermistor and the heater box thermistor first.
    The thermistor on the wash heater controls the dryer as well.
    (if I remember right)

    #274642
    iadom
    Moderator

    Re: Hotpoint WD420 dryer problem

    Thanks for that, the last invoice from the Indesit engineer mentioned changing an NTC, not sure which one though.

    Jim.

    #274643
    hotpnt
    Participant

    Re: Hotpoint WD420 dryer problem

    only prob with that is your kind of saying there def is a fault, so if it does not fix it then it could be a long running saga!,
    you can set to dry, then put the dry timer to OFF the machine should then run cold for a few minutes before ending

    #274644
    iadom
    Moderator

    Re: Hotpoint WD420 dryer problem

    Thanks for that info, I did wonder how to quickly test for heater shut down.

    Jim.

    #274645
    iadom
    Moderator

    Re: Hotpoint WD420 dryer problem

    Went back to this machine this morning.

    Plugged the machine into my little meter, set to 30 minute drying cycle.

    Heater came on after a few seconds. After about 10 minutes the NTC kicked in and the heater was then cycling on & off at regular intervals. After 34 minutes the heater then switched off and the machine proceeded to cool tumble for just over 23 minutes.

    The instruction book ( sheet of paper :rolls: ) states, ‘ There is a 20 minute cool down period included in the drying cycle.

    Now as this is the first time I have actually done this test I am unsure as to wether the machine is OK and the instruction book is poorly written and should say a 20 minute cool down is added to the end of a drying cycle.

    Or is the drying cycle taking far to long.

    Customer did say that due to all the earlier problems she may have become a little paranoid and turned the dryer off after a 60 minute cycle was still running after 75 minutes.

    Until I get a chance or indeed the spare time to run a similar test on another WD400 machine I will not know for certain. Thats of course unless you already know the answer.

    To my way of thinking. if I set a control to 30 minutes I would expect that cycle to run for approx 30 minutes. Also I would expect customer complaints if they had set a 30 minute drying cycle that actually took 57 minutes as this one did. 😕

    Jim.

    #274646
    Martin
    Participant

    Re: Hotpoint WD420 dryer problem

    I think you’ll find that the 20 minutes (approx) cool tumble is in addition to whatever drying time you select. (i.e 30 mins followed by 20 mins cool tumble). 😉

    Highlighting how inefficient Hotpoint/Indesit washer dry cycles actually are. 🙁

    #274647
    lerch
    Participant

    Re: Hotpoint WD420 dryer problem

    The wording out of a wd420 manual. 😀

    There are two heat settings, high and low heat.

    The default setting is low heat, High Heat is selected by means of a push button on the console.

    The drying time is selected by means of a rotary switch also located on the console. The drying times are followed by a 20 minute cool tumble.

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