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Low speed fan problem..


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Hi guys,

I have a C2 with two rad.

One of the fans is not working on low speed, however it works on high speed.

I have read that there are four relays [Relays 19 and 21(low) and 20 and 22(high)] - where are these located?

I need to swap out relays and find out if it is a faulty relay or a fauly fan.

Thanks in advance.

J

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Hi guys,

I have a C2 with two rad.

One of the fans is not working on low speed, however it works on high speed.

I have read that there are four relays [Relays 19 and 21(low) and 20 and 22(high)] - where are these located?

I need to swap out relays and find out if it is a faulty relay or a fauly fan.

Thanks in advance.

J

I have the same problem and searched the forum to no avail. My manual says "see qualified technician for relays" and has no info on the layout/schematic of the relay holder. If the fan works on "high", I would think it the relay or the ballast resistor. I will be watching for a reply.

James

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I have the same problem and searched the forum to no avail. My manual says "see qualified technician for relays" and has no info on the layout/schematic of the relay holder. If the fan works on "high", I would think it the relay or the ballast resistor. I will be watching for a reply.

James

Hi James,

I have just located the relays, they sit under the dash (drivers side).

However not sure what relay does what.

And as you say it may well be the resistor, which I assume sits on the fan unit?

J

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I have the same problem and searched the forum to no avail. My manual says "see qualified technician for relays" and has no info on the layout/schematic of the relay holder. If the fan works on "high", I would think it the relay or the ballast resistor. I will be watching for a reply.

James

Hi James,

I have just located the relays, they sit under the dash (drivers side).

However not sure what relay does what.

And as you say it may well be the resistor, which I assume sits on the fan unit?

J

The resistor is mounted under the fan unit (one on each side), do a search for "ballast resistor" and you will find a thread with pictures showing the resistor location. I know where the relays are located, I don't know which relay corrosponds to the fan speeds either.

James

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If it is a similar set-up to the 986, I would consider the aforementioned resistor. I only just learned this. I didn't know the a/c fan had two speeds, my mechanic informed me that the low speed was not working because of a blown series resister, which he replaced. He said it is behind the front bumper somewhere, it was about 5 inches long and about .75" in diameter with two wires coming out of one end.

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