Peugeot Re: '92 SW8 Intermittent Heat

From: Martin Karo (mhkaro@prodigy.net)
Date: Mon 25 Feb 2002 - 22:02:02 EST

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    I think there's something else going on. On mine, with precisely the same
    problem, you get full heat the instant you unplug the electrovalve. I also
    restored correct operation by replacing the ECU, but that repair only lasted
    a few weeks. Something is causing the ECUs to burn out, it seems. I just
    don't yet know what.

    Marty
    '91 505 SW8
    ----- Original Message -----
    From: "Mike Aube" <maube@idirect.com>
    To: <peugeot-L@yahoogroups.com>; "fwbillb" <fwbillb@aol.com>
    Sent: Saturday, February 23, 2002 9:52 PM
    Subject: Re: '92 SW8 Intermittent Heat

    > Sounds to me like the valve is faulty. Diconnect it and see if you get
    full
    > heat once the car has sat a few hrs. The diafragm lets coolant in behind
    the
    > solenoid which then prevents it from opening and letting coolant through.
    > Mike Aube
    > ----- Original Message -----
    > From: "fwbillb" <fwbillb@aol.com>
    > To: <peugeot-L@yahoogroups.com>
    > Sent: Saturday, February 23, 2002 7:33 PM
    > Subject: [Peugeot-L] '92 SW8 Intermittent Heat
    >
    >
    > > Hello,
    > > My wagon has been getting intermittent heat, particularly when the
    > > weather isn't that cold. The valve is open (heat is on) with no
    > > voltage to the switch (wire disconnected). I was told that in case of
    > > a malfunction, the default setting is heat on, but what's happening
    > > now disproves that.
    > > I switched the dashboard control: no effect. Is there a heater ECU?
    > > Somehow the valve is getting voltage. Could it be the ambient
    > > temperature sensor on the dash?
    > > Naturally, thanks for any suggestions or further info.
    > > Bill
    > >
    > >
    > >
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