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Search: Posts Made By: FreeEMSFred
Forum: maintenance & nonperformance 02-11-2021, 11:22 PM
Replies: 13
Views: 3,916
Posted By FreeEMSFred
Dear clean flame trap (oh how I wish I did the...

Dear clean flame trap (oh how I wish I did the day I got each Volvo, lol) I have recently acquired two more of these modules that work and work well!

One of them is IN my 960 wagon working and...
Forum: maintenance & nonperformance 08-28-2016, 08:10 AM
Replies: 13
Views: 3,916
Posted By FreeEMSFred
Sorry. Just spotted this reply. I actually...

Sorry. Just spotted this reply. I actually managed to fix it! So I could pull it out again for a measurement session at some point, but I'm going to focus on getting the fan to turn first, some...
Forum: maintenance & nonperformance 08-13-2016, 03:06 AM
Replies: 13
Views: 3,916
Posted By FreeEMSFred
ECC speaks the truth! Broken wire on the element...

ECC speaks the truth! Broken wire on the element - too hard to reattach it, broke right at the glass bead. Reading about 8.6k at 20C or thereabouts. Does anyone know what curve these thermistors...
Forum: maintenance & nonperformance 07-08-2016, 08:35 AM
Replies: 13
Views: 3,916
Posted By FreeEMSFred
OK, went out, did a one wheel burnout into and...

OK, went out, did a one wheel burnout into and through second gear (slush box, but bring on the G80...), and now the interior light switches function perfectly (no thanks to the cloud of smoke, mind...
Forum: maintenance & nonperformance 07-08-2016, 07:28 AM
Replies: 13
Views: 3,916
Posted By FreeEMSFred
OK, so that diode is definitely an ultra simple...

OK, so that diode is definitely an ultra simple clamp circuit that I guess tries to rely on the resistance in the wiring loom to not explode on the first over voltage, as it's directly across 12V and...
Forum: maintenance & nonperformance 07-08-2016, 02:49 AM
Replies: 13
Views: 3,916
Posted By FreeEMSFred
Didn't pull the PCB out yet, but reached in and...

Didn't pull the PCB out yet, but reached in and chopped it off

BZY
970 or 97O
22

Seems to be a ~22V Zener clamp! Possibly died on an over voltage then went short circuit, then burned up.
...
Forum: maintenance & nonperformance 07-06-2016, 11:55 PM
Replies: 13
Views: 3,916
Posted By FreeEMSFred
Yes, quite right. I realised this last night...

Yes, quite right. I realised this last night while playing around with the ECC stuff and taking a tiny step in the right direction. That's almost certainly what it is! Which makes me much less...
Forum: maintenance & nonperformance 07-03-2016, 10:26 PM
Replies: 13
Views: 3,916
Posted By FreeEMSFred
Agreed! :-) The fan smoked the power stage...

Agreed! :-)

The fan smoked the power stage module thing. The fan is now fully tested and reinstalled. Just need to get the rebuild power stage in there, and test it out.

What killed this, I...
Forum: maintenance & nonperformance 07-03-2016, 07:37 AM
Replies: 13
Views: 3,916
Posted By FreeEMSFred
Help me identify this ECC dome light diode!

Please :-)

If you know what its role in the circuit is, or have one that you don't mind popping out of your head liner to read the part number on, that'd be great! Thanks. Image of blown diode:
...
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