2017 montana
I had to park the fifth wheel almost a year, everything was dead plugged into 50 amp plug the fridge worked it is a compressor model put a battery charger on batteries all the 12 volt stuff worked. ...
Forum Discussion
The most common causes:
1. The disconnect switch in the convenience center is in the wrong position. The labeling is confusing at best. The key is if you can remove the red key, the battery is disconnected.
2. The batteries were disconnected and/or replaced and wired backwards (even if for just a second or two). This blows the protection fuses in the converter. Replace the four fuses and things are good (assuming the battery is connected correctly)
3. The 50 Amp circuit breaker has failed completely. You can jumper it to verify.
If none of the above apply, get out the voltmeter and follow the voltage from the converter to the battery (or vice versa). Plugged into shore power you should see +/- 13.4 volts all the way down the path.
1. The disconnect switch in the convenience center is in the wrong position. The labeling is confusing at best. The key is if you can remove the red key, the battery is disconnected.
2. The batteries were disconnected and/or replaced and wired backwards (even if for just a second or two). This blows the protection fuses in the converter. Replace the four fuses and things are good (assuming the battery is connected correctly)
3. The 50 Amp circuit breaker has failed completely. You can jumper it to verify.
If none of the above apply, get out the voltmeter and follow the voltage from the converter to the battery (or vice versa). Plugged into shore power you should see +/- 13.4 volts all the way down the path.
