New monovalve. System sends full voltage to it only when temp dial is set to max cold. Anything else and it's full hot all the time, even if I set the dial to as cold as it will go without crossing the detent to max cold.
--- In diesel_mercedes@yahoogroups.com, BStromsoe <bstromsoe@...> wrote:
>
> Always check the monovalve first. If it is bad, you get heat ALL the time. Then you can move on to other things.
>
> Â
> brian from la verne, ca
>
>
[diesel_mercedes] Re: Full heat on all settings except max cold - 84 300D
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