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Old 07-18-2016, 08:24 AM   #1
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2016 Greyhawk 31FK Fridge Issue

We purchased our 2016 31FK in April and have been using it quite a bit. We do mostly dry camping so our fridge is running in Auto LP mode most of the time. A few weeks ago I got a "C" fault code on the fridge. The manual states that is for low DC voltage to the panel. Our battery systems monitor shows the battery systems monitor is at 1/3. We are pretty good about conserving battery by using lanterns and such. I use a Honda eu2000 generator to power the rig on long dry camp trips a few hours a day when getting ready and making food to save on fuel compared to the onboard onan.

I noticed that when I turn on the generator, there is a high load being pulled with nothing on in the motorhome other than the fridge. The other day, when trying to use the microwave, the generator kicked a fault for too high load. This was caused by running the fridge in AC while using the microwave (something we have done many times with no issues prior).

Seems the fridge is pulling some serious voltage. Anyone have any ideas on this or does this sound normal? Just trying to understand why we are getting a low voltage error while the only thing that is on is the fridge.
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Old 07-18-2016, 08:44 AM   #2
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Fridge is around 9 amps, and from what I've read converter is around 8/9 when going to full charge for batteries so your at 17/18. Maybe your geny has an issue.
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Old 07-18-2016, 08:56 AM   #3
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My fridge draws .5 amps (12VDC) in propane mode and 2.5 amps (115VAC) when on AC. You've either got a short in the wiring somewhere leading to the fridge or most likely the fridge element has gone bad and is shorted.
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Old 07-18-2016, 09:10 AM   #4
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Quote:
Originally Posted by hoppers4 View Post
My fridge draws .5 amps (12VDC) in propane mode and 2.5 amps (115VAC) when on AC.
Yep, looked at wrong fuse spec .
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Old 07-18-2016, 09:27 AM   #5
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Fridge runs fine (I have a thermometer in there to monitor). I'll have to look into the potential short issue. If there was a short issue, would the fridge still run fine? I'm a mechanical guy, so when it comes to electrical stuff, I am always scratching my head. 🕵
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Old 07-18-2016, 09:35 AM   #6
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May want to check the setting on the electric element for the water heater...


When we run the genset (1KW) to charge the battery, I make sure the fridge and WH are on gas only.
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Old 07-18-2016, 10:13 AM   #7
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If your fridge runs fine then there's no short. I don't really understand the problem. I would need to know what initiated the low DC voltage indication.
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