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Old 21-04-2008, 10:45   #1
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Electrical/fridge problem

In finishing the refitting of my new lady, I reconnected the fridge to it original wiring. The light will come but the compressor won't kick in. If I connect the 12v fridge direct to the battery everything works fine.

There was a thread a week or so back, discussing a similar problem, which for the life of me I can't find. So my apologies for razing the question again...please either direct me to the thread or if you could please repeat answers/ suggestions.

The difficulty as I see it, is that it is now rewired where it was...fuses are fine, everything (seems) as it was and when connected directly to a battery, purrs away and works bueatifully.

Your help, as always, would be greatly appreciate


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Old 21-04-2008, 15:54   #2
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It sounds to me like you have excessive resistance in the wiring. Either you have at least one poor connection or the wiring is undersized for the startup current.
The fridge sees excessive voltage drop when it tries to start, so it doesn't.

Steve B.

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Old 21-04-2008, 15:57   #3
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Ditto what Steve said. These devices require REALLY good electrical connections!
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Old 21-04-2008, 16:17   #4
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Find out what your startup load is in amps and buy wire to match that load so that you have no more than a 3% drop in voltage. There is probably a placard on the back of your refrigerator or on the compressor motor itself that states the maximum amps.

As already stated, check your connections. This can be done by placing an ohm meter across your connections. There should be virtually no resistance across your connectors.

Voltage Drop Calculator, Amperage Tables, Wire and Cable Technical information

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