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Multiplus II 48/5000 fan stuck

Hi folks,

I am having a challenge with charging my battery bank with the Multiplus and a generator. The Multiplus would start off fine, and then throttle down the amps in short order. Today, it shut down the charge with temperature warnings.

After checking the connections I came to the conclusion that it must be the fan not operating properly. Upon further investigation this seems to be the case. I am only noticing this during charging, I suppose my loads are low enough to not trigger the temperature warnings in inverter mode.

I am attaching a video of what is happening when you initiate a charge. Apologies for shaky footage, trying to not electrocute myself in the process. The main connections seem fine, not disconnected, and the blades do spin when I manually turn them, no cables blocking them.

Does anyone have any ideas how I can get this fan to kick in to charge the battery bank?

Firmware is 470.

Serial Number HQ2049PPXSA

csf asked
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Best Kirsten

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