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Old 04-13-2019, 06:15 PM   #1
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Weird Electrical Problem

Fridge ran off shore power fine.

Eight hour trip, now it only runs off generator.

What is the answer to this riddle?

Edit: 81 KK42
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Old 04-13-2019, 06:26 PM   #2
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2 x 30-amp shore power inlets?
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Old 04-13-2019, 06:26 PM   #3
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With only those details I would guess a transfer switch or relay not operating correctly or in the wrong position.

Good luck, keep us informed.

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Old 04-13-2019, 06:34 PM   #4
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1x50amp
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Old 04-13-2019, 06:35 PM   #5
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With only those details I would guess a transfer switch or relay not operating correctly or in the wrong position.

Good luck, keep us informed.

Rafe
Why would there be anything but a120 bus between the main switch and the fridge?
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Old 04-13-2019, 06:40 PM   #6
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OK. Then you have likely lost one of the phases. If other devices on the same side of the panel are inoperative that is the case. Could be at the pedestal, cord, inlet or transfer switch. If you have an inverter it could be goofing off. If it is a 12/120 refrigerator you should be able to get by on 12-volts until you figure it out.
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Old 04-13-2019, 06:56 PM   #7
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No 12 volts on this fridge. Just 120.

50amp is still single phase isn't it?

(Technically split phase)
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Old 04-13-2019, 07:05 PM   #8
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I assumed it is a 240-volt/50- amp which would be split phase (two hots and one neutral). If one of the hots is not working you will lose circuits on that part of the system.

Do you have an inverter?

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No 12 volts on this fridge. Just 120.

50amp is still single phase isn't it?
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Old 04-13-2019, 07:10 PM   #9
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I do have an inverter (old Heart) but it's not Inverting in this scenario.

Shore or Genny.
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Old 04-13-2019, 07:14 PM   #10
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Ok. Is your shore power 240-volt?
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Old 04-13-2019, 07:19 PM   #11
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I eill check... But that would be weird. I thought all US marina 50amp was 120v.
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Old 04-13-2019, 07:22 PM   #12
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Only 120/50 I find is on inland lakes. You might try resetting pedestal breaker or different pedestal if possible. Also if you have a Y-adapter try to 30-amp outlets. Anything to keep you beer cold;-)
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Old 04-13-2019, 07:22 PM   #13
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Do you have a 208V switch on your panel?

Check your shore power input ligts - are they solid green or blinking.
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Old 04-13-2019, 07:37 PM   #14
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I eill check... But that would be weird. I thought all US marina 50amp was 120v.
Our boat has 50A/120V and 50A/240V and our marina was able to supply us with both. On my power panel there's a switch position to accommodate if we're visiting a marina that only has 120V and we're using two 30A inlets. That gives us 50A/240 and 50A/120 through the panel.
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Old 04-13-2019, 07:56 PM   #15
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Old 04-13-2019, 09:40 PM   #16
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Switched pedestals, everything works. I have some learning to do...
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