Beeping Fridge Fix - By Jim Fielder

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This was posted by Jim Fielder over on the FB side and I think it is worthy of a re-post here:
How to fix a beeping Refrigerator. . . 
Read to the end for the solution and the solutions that don't work. . . Okay, the saga of PodWA and the beeping refrigerator. We purchased our 2015 178 on July 8th, HRE model. Once about a week into things, the refrig started beeping for about 10 seconds every 2 minutes. According to Dometic and the manual, this is a signal that the refrigerator is not latched and needs to be closed and latched. You can check to see if you need to push down the handle to see if it's latched. It was latched. So I did the testing if the light was turning off, it was - how did we do this? We put an iPhone inside it when were were doing FaceTime, and then closed the door, and the light went out. So the door was latching. It quite in about 24 hours and all was good. Then about 2 months later it started up again, this time it went on for about 2 days, then it started again in the middle of our 73 day fall trip. This time it kept on and we looked a possible solutions. We unplugged the light, we restarted it, we did the "reset", we did the call to Dometic. We had previously taken it to a dealer, but now it was driving us crazy - we ran music loud at night to drown it out. Unplugging the door switch silenced it but over the course of two days the temp in the refer rose to 50F and the ice melted. Not a fix, plugged it back in and it was quiet for 24 hours and then at 2 am BEEP BEEP BEEP. Domestic hooked us up with a dealer in NC, we headed there and they ran lots of diagnostics and tightened the door. Solution - replace the unit, unit was shipped and after the weekend of listening to it beep and getting increasingly agitated, we received the call and went to the dealer to have the new unit installed. When you start over with a new unit, it has to come up to temperature and the dealer wants to check it. So we returned to the campground we were staying in and enjoyed the silence, until 4:18 AM when the #&@#!# Beeping started again on the new unit. It had been totally closed and never opened as we waited for the temp to come up. We took it to the dealer that morning and let them know the new unit was beeping too. Did I say we were in NC coastal area - high humidity? So the tech at the dealer pulled the door latch unit with the light out and it was full of humidity and moisture. He noticed that when you manually moved the switch to the closed position, the LED light would start to glow faintly. The moisture was shorting it out and allowing current to flow. The scheme they use to determine if the door is open is if there is current flowing to the LED. So he called Dometic and they came up with a plan, his idea and they said give it a try. He used a can of compressed air, like you get to blow off computers, etc. He blew the area inside the switch clean and dry - key word DRY, then he smeared Dielectric Grease around all the electronics inside the switch. The area was dry and now protected from moisture, no more shorting, no more beeping, I'm once again relaxed and happy. So give that a try, the replaced refrigerator was probably not necessary, but we started anew and now with the dielectric grease life is good. I keep a can of compressed air and dielectric grease stationed in PodWA and life has been good. Problem solved. Thanks for reading to the end.