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Low speed radiator fan not turning on

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Joined: Sun May 10, 2020 1:45 pm
Year and Model: 1995 850 GLT
Location: Central Virginia
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Low speed radiator fan not turning on

Post by dnd2526 » Fri Jun 19, 2020 12:02 pm

Noticed the A/C going warm-cold-warm etc in stop and go traffic and decided to check the low speed fan operation. It wasn't cycling on at all. So I troubleshooted by disconnecting the radiator fan harness from the 2-speed relay and supplying power to the high speed (red) wire. The fan spun up. Then to the low speed wire (green) and got nothing. Just want to confirm that the test was done correctly and that my fan or likely the low speed resistor is bad. If it is the resistor, can this part be replaced or does it require a whole new fan?

1995 Volvo 850 GLT

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