How to fix converter fan

lipcio

I have noticed that my converter fan is making inconsistent whining noise during low current draw. The cooling fan for the converter runs according to load so when more devices are on, it speeds up and it's not that annoying as with low speeds. How difficult is it to replace it? I'm assuming converter is located behind the fuse box so do I need to remove it first to get to the fan? Is fun inside the converter or mounted behind it?

JamesDow

If you have the same stock converter that I have (WFCO WF-8725), the fan is built into the Power Converter. You can find additional information on their web site. I would suggest contacting WACO Support (877.294.8997) to discuss your situation. (is it abnormal?) From my contacts, they are knowledgeable and friendly. The units cost around $100.

Per the Installation and Owners Manual

• Automatic Cooling Fan
  -"This is will operate under high loads conditions normally not during sleeping hours or when power demand is low. Offering more sleeping comfort."

I would doubt that their solution would have a customer replacing the fan on the unit, but that is your choice.

lipcio

Looks like fan is easily accessible after removing front panel cover. Model Globe Fan S01138812H DC12V 0.23A. It's attached with 4 screws and connected with 2 wires. I will try to replace it ($13 on eBay) and see how converter works.

Thank you

JamesDow

Hope your try works. Save $$

dollydigital

Mine is doing the same thing. It sounds like the fan is dying. I was thinking I would have to replace the whole unit. Let us know how it goes.

Duce95

I am also having this issue and from what I found it’s normal for this model to do that. The fan is supposed to run on high load and and low loads it just barely runs.

There are several videos on YouTube showing the sound.

GigHarborTom

I installed a new panel, converter and a couple circuits on my last vintage trailer I had some of the same concerns. Not the same by any means. Was normal I realized.Had the same worry when I put a new frig in and new noise got my attention. Was not used to all that excitement. Never had more than just a battery and a cooler. My what the hell on the T@G was the AC Fan switch. Now that was weird....

lipcio

I replaced fan with brand new but it's working pretty much the same way. I guess I have to deal with it.

ras

When we're connected to shore power, the converter fan will wake my wife up at night. We simply open the breaker for the converter at the breaker panel while we're sleeping and run the 12V systems off the battery overnight. Closing the breaker in the morning recharges the battery.