[bcrvman]

Originally Posted by T&D Arnold

Yesterday we moved our 3121 a total of 15 miles. We have been living in our RV for 8 weeks while the new garage was built on our new property. We have had zero issues for 8 weeks. No longer a true statement.1. Front AC (bedroom) won’t turn on. When changing function on thermostat you do hear 2 clicks from the unit on the roof but there is no fan and no AC.
2. At 5 AM after being hooked to shore power for 20 hours we got the low battery beeping. Battery power had dropped to 10.7. Battery disconnect is in the ON position.

The more we think we know the less it seems we do. I understand that AC units ‘go bad’ so I’ll have that checked by a service tech. Why are we draining the battery while hooked to shore power? How can 2 significant things go wrong in a 15 mile move? Suggestions to troubleshoot?

Unless you have Lithium batteries, that battery is finished. It sounds like you are not keeping them charged so use your VOM and start at the battery positive lead (BE VERY CAREFUL TO NOT TOUCH GROUND WITH THE CABLE). Remove the cable from the battery and see if the converter is charging or not. If not, work back from there and hopefully it's just a fuse or a loose wire finally shook off.