 wiring up a washer switch |
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| JFG |
 Sep 10 2018, 09:59 AM
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Senior Member  Group: Members Posts: 686 Joined: 7-April 16 From: Wales Member No.: 19,869 Region Association: None  |
i have an external motir that i'm wiring up to it's own push & hold switch on the dashboard. the pump has a + & - on it but the switch has nothing.
am i correct in thinking to correctly wire this up i need to do the follow earth from the body to the - switched live to one side of the switch and a wire from the other side of the switch to the + on the pump? the live taken from an 8 amp fuse? |
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| Dave_Darling |
Sep 10 2018, 10:53 AM
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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That should work. Switches are generally non-directional--they either connect the two terminals, or they break the connection. At least, the switches with only two terminals usually are...
There are also arguments for running the fused wire directly to the pump (+) terminal, and putting the switch in between the pump (-) terminal and ground. --DD |
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| HansJan |
Sep 10 2018, 12:29 PM
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#3
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Member Group: Members Posts: 395 Joined: 5-April 16 From: Sugar Land TX Member No.: 19,860 Region Association: Southwest Region
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QUOTE(Dave_Darling @ Sep 10 2018, 11:53 AM)  That should work. Switches are generally non-directional--they either connect the two terminals, or they break the connection. At least, the switches with only two terminals usually are... There are also arguments for running the fused wire directly to the pump (+) terminal, and putting the switch in between the pump (-) terminal and ground. --DD To safe the switch, I included a relay in the circuit with the switch in the ground wire of relay controls. |
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| SirAndy |
Sep 10 2018, 12:35 PM
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#4
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Resident German Group: Admin Posts: 41,640 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
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