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PEM overheating, fans not running

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The fans whilst IP68 (sealed for water ingress) still leak, and eventually the bearings start to seize, I had one which seized sufficiently to gouge a channel in the inner casing, not great. If you can get the cover off underneath, then carefully rotate the fans by hand, you can feel whether there is resistance. If there is, then you need to replace the fan unit - there is nothing serviceable within the blower unit. The unit is made in Italy can be via national dealers, cost is around $180 for the unit - make sure you get the 12V IP68 unit; it is NOT 24V. You would need to modify the connectors if you replace this yourself, trivial comparatively.

It also comes with a 3 year warrenty. There might also be damage to the connector at the PEM end, worth looking at the 1146 threads concerning this (I just posted regarding this earlier in more detail).