The heat damage to your fireplace's AC power plug tells us there is a serious issue either in that outlet on the RV or within the fireplace. It sounds like the fireplace plug got hot enough to start fusing to the contacts in the outlet. At this point it might be necessary to both replace the outlet and the fireplace. You'll need to get it to an authorized service center or to another qualified electrical technician. This kind of problem is not user-serviceable.
Do not use the fireplace... view full answer...
When troubleshooting the stabilizer jacks like the Lippert High-Speed Power Stabilizer Jack # LC298707 the manufacturer provides a few options for what to check when the system is not responding to the switches.
Low Voltage:
- Test battery voltage under load. Charge or replace.
- Use Manual Override
Damaged or disconnected wiring:
- Check wiring. Repair or replace.
- Use Manual Override. view full answer...