How to tell if a switch is bad  
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> How to tell if a switch is bad
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How to tell if a switch is bad - 4/4/2002 5:31:03 PM   
ctatham


 

Posts: 96
Joined: 2/4/2002
From: Toronto
Status: offline 		is there a simple way to check if a JR switch is bad. I had a battery almost catch fire on a switch so am afraid to plug a new battery into it. Is there a continuity test I can use or something like that?
       Post #: 1

How to tell if a switch is bad - 4/4/2002 7:52:38 PM   
bob_nj


 

Posts: 3498
Joined: 12/3/2001
From: Vineland, NJ, USA
Status: online 		If I understand you correctly, you want to test for a shorted switch? First, if it's even in doubt, throw it out. What were the circumstances involving the shorted battery? If you have a standard volt/ohm meter we can do the continuity test. Let me know_Bob

< Message edited by bob_nj -- Apr 4 2002 6:24PM >

(in reply to ctatham)
       Post #: 2

switch - 4/4/2002 10:59:54 PM   
ctatham


 

Posts: 96
Joined: 2/4/2002
From: Toronto
Status: offline 		at my lhs this morning we did a continuity test and the switch is bad.....I'm baffled by it...brand new jr switch. With battery direct to rx, everything works fine so I don't think there is an issue in the circuit elsewhere. Problem arose one day when I flipped the switch on and smoke poured out of battery compartment.

(in reply to ctatham)
       Post #: 3

How to tell if a switch is bad - 4/4/2002 11:12:22 PM   
3-d expert


 

Posts: 95
Joined: 3/28/2002
From: fort myers, NJ, USA
Status: offline 		IMO when in doubt throw it out a switch is cheaper to replace that any other componet on your aircraft.

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Team 3-D Experts

(in reply to ctatham)
       Post #: 4

How to tell if a switch is bad - 4/5/2002 1:22:57 AM   
TOYMAKER



Posts: 771
Joined: 1/15/2002
From: WAXAHACHIE, TX, USA
Status: offline 		I just posted this on "potential hazards" read on.

I recently set up a new glider and was using some "used equipment" I was having difficulty charging my 750mil NiMh pack that I had been using with good success in another airplane. My SuperNova would only put in about 75-90mil amps and stop charging. I took the battery out of the airplane and hooked it directly to the charge cord and wallaaa, it charged as usual.
I hooked up the battey again to the setup and this time I hooked up my expanded volt meter to check things over. A quick wiggle test indicated a partial open or grounding problem in the switch leads. This is not the first time that the expanded meter has saved me from a potential problem/crash. The SuperNova was also telling me there was a problem also. Also wiggle test all your connectors and watch for flucuations in your meter. Tell tale signs you have bad conectors or wiring problems
Just some FYI to prevent a problem. Seems the switches are the most problem areas I have had to contend with on most of my stuff... so I go with the upgrade ones when ever possible.

< Message edited by TOYMAKER -- Apr 7 2002 3:53AM >

(in reply to ctatham)
       Post #: 5

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