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Discovery I - 300 tdi - interior fan heater problem


john01473

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See the tech archive for details of the spider but no it is not likely to have any bearing on the fault you have. The switch is a possible culprit as sometimes they go a bit funny.

thanks for advice - checked the tech archive - so yes not spider - going to parts dealer tomorrow will order switch - i bet changing it is another thing.

cheers - thanks alot mate.

Big John

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Hi There,

I had the same problem, and it was the connector unit in the passengers footwell side panel. As I have never heard of it being called the Spider, I will have to look it up as well.

This unit has a number of spade terminals on it and the one to the heater can carry well over 10 amps which is the maximum load for a 1/4" spade terminal, and as it gets hot it lets go and as it cools it makes contact again.

I cut the spade off and put a proper ring tag on and put it under the same nut that the whole tag assembly mounts on. All ok for a year now.

I also know the previous owner had the heater fan unit changed to try to cure this fault. Amazing what a cheap multimeter and a wiring diagram can fix.

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Hi There,

I had the same problem, and it was the connector unit in the passengers footwell side panel. As I have never heard of it being called the Spider, I will have to look it up as well.

This unit has a number of spade terminals on it and the one to the heater can carry well over 10 amps which is the maximum load for a 1/4" spade terminal, and as it gets hot it lets go and as it cools it makes contact again.

I cut the spade off and put a proper ring tag on and put it under the same nut that the whole tag assembly mounts on. All ok for a year now.

I also know the previous owner had the heater fan unit changed to try to cure this fault. Amazing what a cheap multimeter and a wiring diagram can fix.

aaaaaaaaaaaaaaah

thanks - that panel has been off a few times - previos owner - will have a look in their.

as i say the truth is out there - and you guys know it

cheers

Big John

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Mine had the same problem, it was leaking water from the heater coil into the electrics.

A wet carpet smell is usually the giveaway.

I looped the heater hoses & cut out the heater altogether because the local mob wanted $1500 to put in a new coil.

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