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+--- Thread: Oh foccer font of multimeter knowledge (/showthread.php?tid=76425)
Oh foccer font of multimeter knowledge - HarryHornby - 22-08-16
Hi Guys,
My rear wiper has packed up on the car. I have a multimeter (it came with a tool kit) but I've never used it.
How do I test to see if it's the motor for the wiper that's broken?
I've checked the fuse and it's good.
Cheers in advance
Re: Oh foccer font of multimeter knowledge - tommyardin - 22-08-16
Flick the switch, if that don't work make sure the ignition is on then check the fuses are ok and then the power supply to and from the switch is good plus the earth to the motor is ok.
If all these are positive my guess would be the motor is F----D
Re: Oh foccer font of multimeter knowledge - tommyardin - 22-08-16
Or set the multimetre to 20 volt DC, attach the multimeter (Red wire) to the power supply on the wiper motor, with ignition and wiper switch on and touch the other wire to the chassis of the motor or down to earth on car, if needle or display swings around to show a voltage above 12 volts the the supply is good and the motor is likely to be duff
Re: Oh foccer font of multimeter knowledge - HarryHornby - 22-08-16
but what settings do I use on the multimeter??? Never used one before and really should have learnt a long time ago! LOL I're got 2 holes for the red cable, which do I use? the amps one or the ohms one? black is nice and easy there is only one hole :-) Honestly, total multimeter virgin here..... be gentle ha ha
Re: Oh foccer font of multimeter knowledge - tommyardin - 22-08-16
(22-08-16, 06:11 PM)HarryHornby link Wrote: but what settings do I use on the multimeter??? Never used one before and really should have learnt a long time ago! LOL I're got 2 holes for the red cable, which do I use? the amps one or the ohms one? black is nice and easy there is only one hole :-) Honestly, total multimeter virgin here..... be gentle ha ha
if you connect the red and the black the wrong way around it will give you a negitive/minus voltage reading, just read it as a positive reading.
Here the best way this is how my multi is set up
Re: Oh foccer font of multimeter knowledge - Frosties - 22-08-16
Use the meter the way Tommy suggested (after the old fart understood your question and posted again :pokefun ).
If your meter is different in any way to Tommy's £2 Lidl special, then post up a pic of the meter and we can tell you exactly where the leads go etc..
Re: Oh foccer font of multimeter knowledge - HarryHornby - 23-08-16
Cheers guys, worked a treat, motor is kaput. Time for a trip to the breakers
Re: Oh foccer font of multimeter knowledge - tommyardin - 23-08-16
(22-08-16, 10:06 PM)Frosties link Wrote: Use the meter the way Tommy suggested (after the old fart understood your question and posted again :pokefun ).
If your meter is different in any way to Tommy's £2 Lidl special, then post up a pic of the meter and we can tell you exactly where the leads go etc..
Cheeky foccer Lidl would not stock crap like that, I got it from Maplins at Farnbrough