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Old 04-18-2015, 06:21 AM   #1
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Noise with power converter.

I woke up this morning to a wrrrrring noise. I followed it to the breaker panel. I started shutting off breakers to see what it was when I shut off the converter it went away. What was the noise and what should I do from here? I'm new to this. It's only our second time out.
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Old 04-18-2015, 06:34 AM   #2
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The noise you hear are the fan(s) inside. It helps it keep cool depending on the load of 12v things turned on. Completely normal
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Old 04-18-2015, 06:36 AM   #3
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Even though we are hooked up to power?
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Old 04-18-2015, 06:43 AM   #4
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Even though we are hooked up to power?
Yes. All of your on board 12v systems are powered by the converter when plugged in to shore power (110v). Lights, controller boards for your reefer, water heater, water pump, detectors, etc.
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Old 04-18-2015, 08:59 AM   #5
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Perfectly normal.



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Old 04-18-2015, 12:53 PM   #6
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you still need to check the vents are not filled with dust or other things blocking the fans. Also if you know how to take the front off you can check the fans are not hitting due to dust. We had this happen on our other trailer.
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Old 04-19-2015, 06:29 PM   #7
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have a Wcfo 9865 converter in my 34 ft 5th wheel. Finally gave out but the symptoms are what is described. If the fan is not running and some of the inlet for air is blocked the unit will fail. Shore power will operate all 120 v equipment but you'll see a loss of power in the house battery and then lights will start dimming .
Im putting in a Progressive Dynamics PD 9280.....Deck mount.
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Old 04-30-2015, 12:20 PM   #8
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Converter fan noise

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Originally Posted by Rhoadzie View Post
I woke up this morning to a wrrrrring noise. I followed it to the breaker panel. I started shutting off breakers to see what it was when I shut off the converter it went away. What was the noise and what should I do from here? I'm new to this. It's only our second time out.
I had a similar converter that was mounted under the frig. White noise was distracting.
Ended up attaching a length of vacuum hose on the fan and relocating to a cabnet. Another alternative was replacing it with an upgraded unit.
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Old 05-02-2015, 10:23 PM   #9
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Quote:
Originally Posted by Cmdr Broadslide View Post
I had a similar converter that was mounted under the frig. White noise was distracting.
Ended up attaching a length of vacuum hose on the fan and relocating to a cabnet. Another alternative was replacing it with an upgraded unit.
What did the vacuum hose do?
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