19 replies to this topic

[longhorn1]

Just start a 2 week trip on Thursday and noticed my 2014 Grandby, with 80L Dometic compressor fridge and original 2-AGM batteries showed a temp of 46. The Zamp Controller said 13.6. a little red light blinked once every 4 seconds indicating low battery in the fridge I plugged in a small voltage meter into the 12-volt and it said 11.9.

We probably lost all the meat, eggs, etc.

Any ideas? In Chicago for my 50th reunion and leave early Sunday morning for Utah and Colorado.

JD

[BillTheHiker]

Was the compresser running at all? You might check if the fridge has a low voltage cutoff and if it is adjustable.

 

My Truckfridge has a low voltage cutoff with three settings and the lowest [least protective of battery] cuts off about 11.8 volts according to the manufacturer. Since it always happens during the night I never could find out exactly the cutoff point. 

[Vic Harder]

Just start a 2 week trip on Thursday and noticed my 2014 Grandby, with 80L Dometic compressor fridge and original 2-AGM batteries showed a temp of 46. The Zamp Controller said 13.6. a little red light blinked once every 4 seconds indicating low battery in the fridge I plugged in a small voltage meter into the 12-volt and it said 11.9.

We probably lost all the meat, eggs, etc.

Any ideas? In Chicago for my 50th reunion and leave early Sunday morning for Utah and Colorado.

JD

Oh, that sux, losing a fridge full of food.  11.9 isn't horrible, but it is less than 50% charged (with no load... you likely had a load).  The disturbing part is that the ZAMP and Voltmeter don't agree.  Something is amiss there.  Can you disconnect the ZAMP to let it reset and then reconnect, and confirm that the two devices disagree?

[pvstoy]

The Zap controller showed 13.6 and that would be float charge. It is disturbing at the same time you have 11.9 volts. Pull fuse on the Zap and like Vic suggested for a reset. Also check the fuses at the battery from the controller and connections ( positive and negative) for tightness and shorts that is not allowing the solar to charge the batteries. A volt meter here would really help to probe each connection as you wiggle the wires.

[Wallowa]

Just start a 2 week trip on Thursday and noticed my 2014 Grandby, with 80L Dometic compressor fridge and original 2-AGM batteries showed a temp of 46. The Zamp Controller said 13.6. a little red light blinked once every 4 seconds indicating low battery in the fridge I plugged in a small voltage meter into the 12-volt and it said 11.9.

We probably lost all the meat, eggs, etc.

Any ideas? In Chicago for my 50th reunion and leave early Sunday morning for Utah and Colorado.

JD

 

 

What blinking light indicates a "low battery in the fridge" ?  Lost  me there...

 

You said it was at 46 degrees but you thought you lost meat and eggs?

 

Phil

Edited by Wallowa, 23 September 2018 - 12:31 AM.

[pvstoy]

I took pictures of the manual....  I think Hoyden has the same fridge 80 Liter??

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Edited by pvstoy, 23 September 2018 - 01:33 AM.

[pvstoy]

more...

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[pvstoy]

last one.

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[longhorn1]

I took pictures of the manual.... I think Hoyden has the same fridge 80 Liter??
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IMG_2359.JPG
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IMG_2360.JPG
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Mine is showing 11.8

[longhorn1]

What blinking light indicates a "low battery in the fridge" ? Lost me there...

You said it was at 46 degrees but you thought you lost meat and eggs?

Phil

There is a red blinking code light that blinks once every 4 seconds indicating low voltage per the manual.