Bosch FLA stuck on 1 min followed by F27

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  • November 8, 2022 at 9:14 am #101328
    neon_3SP_glow
    Participant

    WAS2245GB/05.


    Machine functions fine aside…

    Inlet pressure is low.

    Drain rate is perfect.

    Pressure system not blocked.

    Machine ends spin cycle and remained on 1 min for over an hour. Subsequent program showed F27.

    Any ideas, please? Thanks

    November 8, 2022 at 10:00 am #484326
    electrofix
    Moderator

    A lot of earlier Boch machines did this if the heater insulation resistance was low

    Dave

    November 8, 2022 at 10:16 am #484327
    neon_3SP_glow
    Participant

    Thanks Dave

    Not down to Earth on heater, brushed carbon dust of motor, heater and module. Checked pressure hose for splits, no faults found.

    Yet 1 min stuck, even on separate spin.

    Just hooked on a new element to try again.

    Will report back!

    Cheers

    November 8, 2022 at 10:36 am #484328
    neon_3SP_glow
    Participant

    New element made no difference

    November 8, 2022 at 10:56 am #484329
    neon_3SP_glow
    Participant

    Will try the analogue pressure sensor…

    Thanks

    November 8, 2022 at 9:39 pm #484330
    kaibart
    Moderator

    The f27 fault relates to the pressure switch so your definitely on the right traced also says check wiring

    November 9, 2022 at 11:57 am #484331
    neon_3SP_glow
    Participant

    Thanks Kai.

    I did check wiring, and also using pin, tightened micro terminals.

    December 19, 2022 at 5:55 pm #484332
    neon_3SP_glow
    Participant

    Update:

    I replaced the analogue pressure sensor and the machine worked fine…. For three washes, apparently.

    Now the F27 is back.

    December 20, 2022 at 5:51 pm #484333
    neon_3SP_glow
    Participant

    Any thoughts guys?

    Can the module cause the pressure sensor to fail?

    Or, likely a connection/loom issue.

    Can’t fathom how part worked for a few days then reverted back to old error.

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