Hotpoint WD420 - replaced dead heater, now error F7 shows, flashing 2,3,4

Discussion in 'Appliances' started by JimboMarimbo, 31 Mar 2017.

  1. JimboMarimbo

    JimboMarimbo

    Joined:
    13 Feb 2013
    Messages:
    42
    Thanks Received:
    0
    Location:
    Essex
    Country:
    United Kingdom
    Washer/Dryer HP WD420 water would not heat up, so pulled heater and thermistor out - both dead :(
    Bought genuine HP replacements and installed them today.
    Now machine does not fill or go on to wash - just displays rapid on/off led flashing, together with flashing leds (from the top down) 2, 3 and 4.
    Elsewhere on this forum I found this to be fault code F07 - Heater Relay.
    This makes no sense - I mean, prior to replacing dead heater and thermistor, the machine would wash ok, but with cold water.
    Am I reading the fault correctly? If so why have the brand new parts made the machine unusable?
     
  2. Sponsored Links
  3. Echo the husky

    Echo the husky

    Joined:
    25 Mar 2011
    Messages:
    2,476
    Thanks Received:
    326
    Location:
    Devon
    Country:
    United Kingdom
    Check all the heater wiring and connections, also check operation of pressure switch.
     
    • Thanks Thanks x 1
  4. JimboMarimbo

    JimboMarimbo

    Joined:
    13 Feb 2013
    Messages:
    42
    Thanks Received:
    0
    Location:
    Essex
    Country:
    United Kingdom
    Ah, the pressure switch - that round thing in top of machine with a pipe going in to it? Someone else suggested blowing through it. I'll have a look tomorrow. As for wiring connections - they're all good, I checked them myself when installing new heater assembly
     
  5. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page