Quote:
Originally Posted by CHUCK52
2018 Thor Hurricane 29M
Boon docking, had battery power. ran generator to charge batteries. use store on. Batteries charged if at all. ran for hours. Ran RV, batteries charge up fine using RV alternator. Got home and next day, no battery power at all. use store on. Battery tests to 12.7 V. Plug into shore power, all works. Test at 100 amp breaker, no reading. Any ideas???
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Without shore power will the generator start? That will load test the house batteries. If the generator starts, shut it down and see if the interior light works with the Use/store switch in use (master power on). If no interior lights, check the 50 amp circuit breaker in the back of the battery compartment for a flag (no test button). If it not tripped and no lights, you probably have a bad latching relay under the bed. Just a note - if the batteries are low the use/store switch will not work as the latching relay needs 10.0 volts to latch.