Heater fan packed in

Heater fan packed in

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stevieeg

Original Poster:

269 posts

131 months

Sunday 7th December 2014
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Just at the right time of year too. Heater itself still working and the whole PCB on the centre console is lighting as it should... Just no fan.

I've had the centre off and done a quick multimeter check and wiggle test. No joy. PCB seems to still be doing its job.

Can anyone point me to where I can access the unit... Or if there are other connectors to wiggle between the centre console and the unit?

Cheers!
Steve

stevieeg

Original Poster:

269 posts

131 months

Monday 8th December 2014
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One very dirty pin on the ECU which I cleaned up but still no fan.

Think I'll open the box up tonight and see if I can find any blown caps to replace. Given the dirty pin I have a feeling I'm on the right track.

Otherwise it's into the wheel well!!!

stevieeg

Original Poster:

269 posts

131 months

Wednesday 10th December 2014
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Sagi Badger said:
Took my ECU apart and resoldered the pins on the connector. These are through plated boards and the pins of the connector are quite thick, meaning they are a heat sink during the soldering process, hence the solder doesn't wick all the way up the pins to both sides of the board. Not a problem in the early life but as vibration and fatigue take hold the solder that is only on one side of the board fractures you get an open circuit joint. To fix resolder with a good hot iron and nice solder, you can't see it wick as the plastic body of the connector is in the way but a good dose of heat and a fair bit of judgement and job done.

Fixed mine on the Tuscan, did the window ECU on the Sag three years ago in the same way.

Simples.

J
Took the ECU apart last night as I did have a very blackened pin on the connector externally.

Looks fine inside no blown caps and no sgn of internal damage.

I also have continuity between the blackend pin and the PCB it is soldered to internally.

Will check the rest of the pins though (just to be sure) as cleaning the blackened pin hs't fixed things... maybeneed to check the connector in the female side of the plug too I guess.

stevieeg

Original Poster:

269 posts

131 months

Saturday 13th December 2014
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Fixed... But of a clean on the female side of the ecu connector and hot air once again circulates.

Just in time for TITT then a trip to the highlands. Joy.