Forum Discussion

specware2020's avatar
specware2020
Explorer
Feb 04, 2022

Is it normal for an Alternator to generate 15 V+ output?

The refrigerator on my Class C MH (2020 Coachmen Freelander on Chevy 4500 chassis) runs on 12V DC only. Recently, the refrigerator controller started to put out error code indicating “the operating vo...
Class C
ScottG's avatar
ScottG
Nomad
Feb 04, 2022
The max voltage should be 14.7~14.8.
15.4 is WAY beyond normal (and it has nothing to do with the battery). You are well into the danger zone and will be boiling your battery and frying electronics.

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