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Old 05-05-2011, 09:10 AM   #1
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Fridge fan cycles on & off(drives us nuts at night!)

Just purchased a brand new 2011 Salem Cruiselite 26BH last weekend.
During the walkthrough with the dealership, we noticed a fan running on and off intermittantly(rv was plugged into 110v) and when asked, the guy basically gave me a vague answer as to what it was.
After signing off and heading to the lake, we noticed the fan wasn't shutting off at all(would cycle on for 10-15 secs, turn off for 20 secs, then back on again).
During the night, the fan noise was driving us nuts in keeping us awake. The battery also died around 2 am(luckily I had a spare).

Back at the dealership the next day, I explained this and was told it was the fridge fan and it was normal operation on the newer units!
Is this normal and also does this fan contribute to battery failure??
Please tell me something is not right for this thing to cycle on & off all day/night.
We had an "89 Tioga motorhome for a few years previously and never heard a peep from the fridge.
Also, my brother in law has a newer trailer and he says he rarely hears any noise from his fridge.
Any input on this would be great!
Thanks for reading.

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Old 05-05-2011, 09:14 AM   #2
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If your power center is directly below your fridge, you might be hearing the cooling fan on that. Depending on your fridge, you might not even have a fan in that. Mine doesn't, but I understand some now do.
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Old 05-05-2011, 09:43 AM   #3
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The power center is below the fridge.
We thought the fan sound was coming from there, but the dealer seems to think it's a fridge fan.
How woulkd I really know this and check it?
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Old 05-05-2011, 09:50 AM   #4
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Try turning off the fridge and see if the sound persists.
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Old 05-05-2011, 09:53 AM   #5
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Put your ear up to the power center to check.

On ours, if there is not much 12 volt pull from the battery, then the fan is off. With a couple of lights cut on, the fan will cut on. Makes me believe that the fan is load operated, and not heat operated.
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Old 05-05-2011, 10:03 AM   #6
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The OP states: the fan ran all night along and the battery being dead. This sounds like the charger was on all night long attempting to charge a dead battery resulting in the fan being on as well.

We had a similar issue (CHENG AC/DC Distribution Panel) and after contacting CHENG (the power center manufacturer) they told us the fan had three speeds: high, med, and low. The speed of the fan depending on the load.

Hope this is of some help.
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Old 05-05-2011, 10:50 AM   #7
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Wow, thanks for the replies!
Does this mean I can eliminate the fan noise coming from the fridge?
Just a note on charging, we fired up the inlaw's generator the next day to charge the dead battery(through the trailer 110v line) and the fan noise came on full speed while the gen was running.
This is why I don't think it's related to the fridge.
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Old 05-05-2011, 12:31 PM   #8
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X2 on what frankm said. Sounds like to me a bad battery, or at least low cells. Check your connections, and your battery water level; you need distilled water, and just enough to cover the plates. Fhen, charge it up and see if the problem goes away. You will hear that converter fan cycle on and off OCCASIONALLY, however, as that is how the battery gets charged normally. Even when plugged into shore power, the 12v side of the converter runs lots of stuff. Randy
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Old 05-05-2011, 12:41 PM   #9
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Definitely sounds like the Power Center - Converter. To verify whether your fridge has a fan, check the Model Number and Manufacturer, most owners manuals have part lists included with a drawing. Just look through the book or post the model number here with manufacturer and someone with the same fridge will know whether it has one or not.
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Old 05-05-2011, 05:30 PM   #10
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Well, looks like it WAS the fridge fan which is used to cool the electronics under load(not a Dometic thing, but a Forest River addon).
I verified that today by listening to it with 110 plugged in.
At FR's suggestion, they are going to move the sensor away from the heat source a bit as the fan thinks it's needed and kicks in all the time.
Stay tuned...
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