Dispatch Mk2 (07+) Blower Problem

topboy · 2020-02-09 17:55:16

Hi, Would really appreciate if someone can advise

My blower stopped working on setting "3" one day, and about a couple months later or so, 1,2 and 4 all stopped simultaniously. They then started working one or 2 more times, and now none are working

I have changed the fuse, and replaced the Fan Blower Control Motor Resistor, Bought on Amazon, but still not working

What do these symptoms suggest? Any ideas

Last edited by topboy (2020-02-09 20:18:21)

OAT · 2020-02-09 20:57:42

You will find quite a few threads on the blower There seem to be quite a variety of common faults.

The slider controls are pretty cheap and nasty and can give trouble with the thin copper contacts. There is a good thread somewhere about getting to them and cleaning.

Did you actualy know the resistor had gone or just replace it anyway. Is the replacement the exact same serial nomber, etc as I believe different ones were used and they are not interchangeable.

EDIT... just noticed it's a mk2, this might not apply.

Last edited by OAT (2020-02-09 20:59:59)

topboy · 2020-02-10 10:02:44

Thanks for your response.

I didnt check the resistor, just the cheapest part, so thought its worth the try.

Could this be the blower? Just trying to work out from the symptoms

OAT · 2020-02-10 15:51:15

I think the diagnosis for resistor fault is "working at some speeds but not others."

From here :- http://www.resistorguide.com/applicatio … -resistor/

More on the controls here :- https://dispatchexpertscudo.org.uk/foru … .php?id=62

Lots more on heaters here :- https://dispatchexpertscudo.org.uk/foru … 1090284686

Last edited by OAT (2020-02-10 15:53:25)

kenbw2 · 2020-02-10 16:47:21

I think OAT from the OP's mention of it being on 3 and saying Mk2 it's likely not quite the same issue as our terrible Mk1 sliding resistors.

topboy · 2020-02-10 16:53:37

Thanks for your responses.

As kenbw2 mentions, and which is puzzling me is, that it stopped working on "3", then all of them have stopped, but they worked (1,2 & 4) for a couple times before they all stopped. Its kind of confusing.

I tried giving the fan a little knock, to see if that would get it going, which didnt seem to work either.

vaz2121 · 2020-02-11 10:37:31

kenbw2 wrote:

I think OAT from the OP's mention of it being on 3 and saying Mk2 it's likely not quite the same issue as our terrible Mk1 sliding resistors.

But then does that suggest it's a faulty rotary knob ?

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#1 2020-02-09 17:55:16

Dispatch Mk2 (07+) Blower Problem

#2 2020-02-09 20:57:42

Re: Dispatch Mk2 (07+) Blower Problem

#3 2020-02-10 10:02:44

Re: Dispatch Mk2 (07+) Blower Problem

#4 2020-02-10 15:51:15

Re: Dispatch Mk2 (07+) Blower Problem

#5 2020-02-10 16:47:21

Re: Dispatch Mk2 (07+) Blower Problem

#6 2020-02-10 16:53:37

Re: Dispatch Mk2 (07+) Blower Problem

#7 2020-02-11 10:37:31

Re: Dispatch Mk2 (07+) Blower Problem

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