The thermal fuse in the resistor pack in my 1997 Fiat Ducato has blown. I've tried cleaning it up but I can't see any markings at all. With the fuse bypassed, all the fan speeds function correctly.
Any idea how I can find out what to replace it with?
Quick trip to maplins will sort that out
No Maplins handy and besides, what value fuse? They seem to come in a lot of different temperature ratings.
Maybe I should just take a punt on something like this?
RS components ,think mine cost me 12 pence , easy to change , stick it in the freezer with a couple of crocadile clips use them has heat sinks when you solder it in , use lead based solder lower melting point
And how did you know what rating to buy...?
Tim
I am not sure it's THAT critical If its designed to cut out if things get too hot, then anything round the 80-100C mark should be OK
the one above appears to be 152 degrees C
On the focus it was stamped on the fuse
Some sources here
Thanks, some useful tips there.
Tim
Lucky you! If you re-read my original message you'll see that there are no markings on mine.
Tim
I am not sure it's THAT critical If its designed to cut out if things get too hot, then anything round the 80-100C mark should be OK
I would agree.
Surely the whole purpose of a thermal fuse is to fuse when temperatures get to such a point that it might start melting things, or start a fire.
The Nissan fuse highlighted in this thread would appear to fuse at 150 degrees C - I'm not sure I would fancy something that hot in my car should the fan motor stall or the airflow gets blocked.
I'd go with the 80 - 100C suggested here, and if it blows you then have a proper problem to sort out.
Gareth
I've never seen a thermal fuse soldered in, always spot welded or crimped. If you look at my photo you'll see that mine is spot welded.
Tim
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