Fan troubleshooting

Information and questions on GL1100 Goldwings (1980-1983)
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Motorcycle: 1982 GL1100 GoldWing

Fan troubleshooting

Post by Britanicus » Sun Jul 17, 2011 10:34 pm

Hey Guys,

My fan is not coming on. Is there a thread somewhere that can help me trouble soot or any advise you may have.


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Re: Fan troubleshooting

Post by RoadRogue » Sun Jul 17, 2011 11:30 pm

first thing you need to determine is , does the fan motor still work? unplug the connection to the fan motor and hook it up to a battery directly (keep fingers clear). If it runs then reconnect and check the connection to the sending unit near the thermostat,(this is where mine was giving me trouble) clean and tighten the connection. Its a tight fit but you can get to it without removing anything but the fairing lower on the right side.

Hope this helps some.
Ride safe, Todd
Over night campers welcome

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Re: Fan troubleshooting

Post by WingAdmin » Tue Jul 19, 2011 4:10 pm

If you look at the fan, there are two wires - blue and black. Blue has power when the bike is "ON", and black is connected to the thermo switch, and from there to ground.

If you connect a wire from the black wire to ground, when the key switch is in "ON", the fan should come on, regardless of the temperature. If it doesn't, check to see that there is 12 volts on the blue wire. If there is, then you've got a problem with the fan itself.

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Re: Fan troubleshooting

Post by HondaWalt » Sat Sep 03, 2011 10:56 am

WingAdmin is correct about what he says with the location of the 12 volt power relating to the wiring. I had an overheat problem suddenly occur and after trouble shooting heres the simplist way I found of determining in one swoop whether it's the fan motor,or bad/loose wiring. Unplug the booted connector to the Thermo switch (from right side of bike which has 2 wires going in it). Put a jumper wire across the 2 wires and turn on the ignition key only (not starting the engine). If the Fan runs then it's only the Thermo Switch and nothing else eliminating all else simply. This was the problem I had so for some $ (which hurt) and a new switch install all is fine.

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