Dutch manufacturer Itho Daalderop seems to have an electronics reliability problem. I’ve now repaired 4 fans from the brand.
![](https://www.krekr.nl/wp-content/uploads/2024/03/B1AFA372-4118-4ACD-AD72-AD3766DC4559_1_105_c-768x1024.jpeg)
![](https://www.krekr.nl/wp-content/uploads/2024/03/33F64973-FADB-4EB2-B6AF-D05579FD3525_1_105_c-1024x768.jpeg)
One common problem seems to be that the transformer on the PCB of the CVE “Centrale ventilatie eenheid” breaks. It is a very common part that can be had for about €5, e.g. at Reichelt.
The epoxy of the potting cracks. Maybe it gets too hot, maybe unfiltered spikes on the mains net cause this. Of course, these units run 24/7, but I’d advise anyone to add extra precautionary devices on any Itho appliances they might have.
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![vlak-1](http://www.krekr.nl/wp-content/uploads/2011/10/vlak-1-1024x724.jpg)