Ikea Renlig DW60 (911 539 050) not heating

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  • November 10, 2020 at 2:00 pm #98615
    davepi18
    Participant

    The dishwasher has stopped heating. The program runs to the end, but it’s cold and nothing washes properly. The pump is running.

    I suspect the heating element, but I can’t determine if this model has a separate thermostat, and I can’t find a service manual or wiring diagram for it.

    If I need a new heating element, it seems spare parts are available, but it’s not clear to me how to replace it as it’s buried right at the back of the machine.

    So, is it likely that a new element is required?
    How can I check the existing element?
    If I need to replace it, how do I get to it?
    How can I get hold of a service manual?

    Any advice gratefully received!!

    November 10, 2020 at 5:56 pm #473055
    electrofix
    Moderator

    element should be this one
    https://shop.ukwhitegoods.co.uk/9957704-compatible-dishwasher-water-heating-element

    you would have to strip it and find it. Then disconnect the wires going to it and check the resistance with a multi meter. you looking for a low reading well under 100 ohms. if you get thousands its gone

    Dave

    November 14, 2020 at 8:12 pm #473056
    davepi18
    Participant

    electrofix wrote:element should be this one
    https://shop.ukwhitegoods.co.uk/9957704-compatible-dishwasher-water-heating-element

    you would have to strip it and find it. Then disconnect the wires going to it and check the resistance with a multi meter. you looking for a low reading well under 100 ohms. if you get thousands its gone

    Dave

    Thanks for replying so promptly.

    Managed to strip it down today. The heater has 25 ohms across it, so that is fine. Tracing the wires back, the connectors all look good, the water pressure switch seems to be working as does the relay on the PCB in the control model (when I activate it with a 9V PP3 battery, the contacts move over and make the circuit). I conclude that it is therefore some other fault on the PCB meaning that the drive circuit to the relay has failed. Anything else it could be before I look to replace the PCB or debug it?

    Cheers

    Dave

    November 14, 2020 at 8:25 pm #473057
    electrofix
    Moderator

    just to check, when you tested the heater, did you test from the connector block or either end of the element ?

    Dave

    November 14, 2020 at 9:42 pm #473058
    davepi18
    Participant

    Connector block. And the path between the connector to each end of the heater was showing 0 ohms

    November 14, 2020 at 10:25 pm #473059
    electrofix
    Moderator

    check temp sender

    its an ntc connected to teminals H1 and H3 on the board
    disconnect plug and measure resistance

    Dave

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