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Join Date: Nov 2004
Posts: 98
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AC condenser blower motor
DIYer.
Bentley Manual 1984 911 page (970-45) AC wiring diagram. Sorting out my fuse panel #3 in front trunk (971-14). Trying to remember if I read somewhere... was there an extra 20Amp fuse put between AC fuse #2 25 Amp in panel #3 and the blower motor - detailed in a suppliment to the factory manuals to keep the condensor blower motor from drawing too much current, seizing, and posing a potential fire hazzard. If so where was it placed in the circuit - before or after the condenser blower relay. (Really need to get a copy of the factory manual - adding it to my wish list.) Cheers - Thanks!
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Coral Red Syd - "For Those Who Love to Fly... On The Ground" |
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07-12-2006, 08:46 AM
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It was place after the relay. Our host use to sell the harness to add the fuse to the circuit. I did the mod to my car.
Had a radiator fan motor seize on my Audi 4000 quattro and it melted the entire wiring harness in the engine. Was a b!tch to remove and replace. Why those nGerman engineers don't use relay for high ampereage equipment is a mystery to me. Oh they also don't wire the headlamps with relays. |
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07-12-2006, 03:38 PM
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heiliges blechle!
Join Date: Aug 2005
Location: Travel a lot
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Is 20 amps the proper size for this? I think that I'm going to spend a day or so fusing my car in the near future.
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'84 M491 '07 Silverado '75 Suzuki GT550 2-stroke triple '02 Aprilia Mille R '07 Ducati S4Rs '08 Night Train |
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07-12-2006, 05:20 PM
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Thank you. Makes since that it would be after the relay - an extra level of protection.
For the other posted reply. Watts/Volts = Amps. Look at the wattage of the motor / by 12 volt battery = amp fuse. I like to use a lower rated fuse as it blows faster and saves the appliance connected to it. Much cheaper.
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Coral Red Syd - "For Those Who Love to Fly... On The Ground" |
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07-13-2006, 11:08 AM
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Location: Galivants Ferry, SC
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The front condensor fan fuse upgrade was done by Porsche for the 88 model year and was an ATO style 7.5 amp type......
A separate wiring harness with fuse holder is available as a factory part for the front condenser of earlier cars.....see Technical Bulletin part identifier 8753, number 8803, under group 8 of the service manual ( Aug 12, 1988). Porsche P/N 911.612.077.00 Bulletin replaces Technical Bulletin Group 8, Number 8803, dated July 29, 1988. You can also fashion a harness yourself....pretty easy. - Wil
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Wil Ferch 85 Carrera ( gone, but not forgotten ) |
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07-13-2006, 06:26 PM
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