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Fault 52 5K MKS II


Fenner
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Hi I have a problem with an axpert 5k mksii, it works fine without batteries, but when I connect the batteries I have fault 52. What can I check Mosfet and resitor like on KS model?

Does anyone have a service manual to send me?


Thank you

Edited by Fenner
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Fault code 52 (error 52) is bus voltage too low. You could start by getting what the inverter thinks the bus voltage is, and compare that with a multimeter. The bus voltage appears in the response to commands such as QPIGS. It might also be available from Watchpower or other monitoring software.

Edit: I don't have an MKS II service manual in my collection.

Edited by Coulomb
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