I just installed 2 fans in the stack of my refer to aid in cooling. Everything went well until I connected to a toggle switch to manually control the on-off function of the fans. Without the toggle the fans run as they should but obviously I don't want them running 24/7,but the minute I hooked up to the toggle switch and turn it on "pop" goes the fuse.Thinking it might be a bad switch I tried 2 others-all brand new and with the same result.? Anybody have any ideas where and what to look for?

Can you post a picture of your switch installation? I would suspect you wired it incorrectly.

I hate to say it, but you've hooked the switch up wrong. It should have 2 terminals, and it should go in the hot lead.

You've definitely hooked it up wrong. GND -===============FAN -12V +======/SW =====FAN +

TucsonJim wrote:Can you post a picture of your switch installation? I would suspect you wired it incorrectly.or the switches are inadequate for the load but I agree with Jim...the wiring is likely the culprit.

What's your DVM say about a possible terminal to case short? You do have one?

Keep blowing fuses ? | Good Sam Community

26 Replies

yankee_camper
Explorer
May 02, 2015
sch911 wrote:
You've definitely hooked it up wrong.
GND -===============FAN -
12V +======/SW =====FAN +

We have a winner, I'll try to explain what I did as best I can but keep in mind the obvious...I'm an electrical idiot...
Fan pos. to power pos.
Fan neg. to power neg.
One pos. wire group to toggle switch wire
One neg. wire group to the other toggle switch wire
and I did put a 1 amp fuse in-line
Am I really that stupid or can anyone understand that my thinking was the pos.-neg. connection to the toggle switch would would make/break the circuit ?
SCVJeff
Explorer
May 02, 2015
What's your DVM say about a possible terminal to case short? You do have one?
rk911
Explorer
May 02, 2015
TucsonJim wrote:
Can you post a picture of your switch installation? I would suspect you wired it incorrectly.

or the switches are inadequate for the load but I agree with Jim...the wiring is likely the culprit.
sch911
Explorer
May 02, 2015
You've definitely hooked it up wrong.
GND -===============FAN -
12V +======/SW =====FAN +
Chris_Bryant
Explorer II
May 02, 2015
I hate to say it, but you've hooked the switch up wrong. It should have 2 terminals, and it should go in the hot lead.
TucsonJim
Explorer II
May 02, 2015
Can you post a picture of your switch installation? I would suspect you wired it incorrectly.

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Keep blowing fuses ?

26 Replies

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