Electrical

Does a solar power inverter have a cooling fan?

Anonymous user 23/02/2024 - 3.52 PM

Solar panels were recently installed on the roof of the adjoining bungalow. They run alongside my home. Ever since then I have a constant hum in my home, at times it becomes very loud, it is intrusive. I did some research and it appeared the inverter may be the source. The Company involved finally sent the electrician to check it. I won't go into details only say that he was dismissive, wouldn't listen to anything. As an almost 80 year old woman trying to get the issue resolved I found him very intimidating. He said the problem wasn't the inverter because it doesn't have a fan so it couldn't make a noise like I was describing. I was under the impression some form of fan is needed for cooling down. Please could somebody tell me if there is a fan or not? Thank you.

DJM electrical (south) ltd

Rating: 5 out of 5

5/51 review

Kenley

Some have fans some don’t. What brand and model of inverter do you know? Most inverters will be silent with the odd click (relays). If there are batteries installed, when these are charging at a high level sometimes the inverter will let out a slight high pitched sound. All depends on make and model to be honest. This could also be down to wind movement through the panel rails. This will hum through the rails and transfer to the roof. Most installers will use end caps on the end of the rails to stop this though.

Answered17 May 2023

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K H Electrical

Rating: 5 out of 5

5/594 reviews

Peterborough

It does seem a coincidence that the humming has started since the panels were installed. As previous answer, some have fans and some don't. However, my theory is that next door's one does have a fan and that the inverter has been mounted in their loft on the wall dividing the two properties, which is causing vibration transfer from the fan that runs continuously and runs faster (boost) when more cooling is required.

Answered18 May 2023

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