Voltmeter Not Working

[Darren Groves]

So my Smiths Voltmeter has stopped working. There's >12v on the live feed and the earth does go to ground so definitely a gauge problem. Are they repairable, is it worth me opening it up, if so what am I looking for?

[Guest]

Darren.

 

I have never taken one apart, but two things can go wrong:

 

1. the resistor

 

2. coil windings within the instrument; basically a break in a strand.

 

With point 1, probably a case of replacing, if at all possible.

 

If the copper coil winding is snapped, then it is a case of re-joining, but to be honest these wires are so thin it's probably a complete rewind.

 

I think a new gauge would the cheapest and easier option IMHO.

 

Regards.

 

Richard.

[dougbgt6]

I bought a second hand Smith's voltmeter off Ebay, it didn't work so I took it apart. The coil windings were broken, no way they could be soldered or reconnected. I was going to return it but, to add insult to injury, my hand brushed the dial and the decals came off on my finger. I binned it.

 

You might be lucky, it might just be a break in the wiring too the coil, but if it is the coil, good night Vienna!

 

The club shop sell them at a good price.

[AidanT]

Speedograph Richfield will refurbish and repair it. They are on the web