dougrainer wrote:
Chris, My comments come from 43 years as a RV technician. ALL are solid based on MY travels and what I have seen about RVer parked at roadside areas and eateries and even in neighborhoods. TRAVELING on slopes and inclines does NOT cause an out of level problem as the movement overcomes the problem of the Ammonia system. The overheat disc is a SAFETY install. Has nothing to do with stopping a potential blocking problem. IF the out of level or even a large blockage happens, running the Refer, can cause a burst of a cooling unit at its weakest points. IF on LP, the flame can ignite the spewing ammonia and cause a fire. So after lawyers sued Dometic and Norcold 25 years ago, both installed overheat disc's. There was a massive recall over 20 years ago for millions of refers to have the overheat kits installed. ALL new refers since then had the kits installed at build. Doug
Good stuff. I'm happy to hear that out of level problems are not an issue while driving because of the movement. One less scenario to worry about.
Regardless of HOW OFTEN parking off-level happens, we can both agree that it does happen.
I understand that the overheat discs are to help with a catastrophic overheating situation. Just seems strange to me that they would let the boiler get 300*F-400*F OVER the "normal" operating temperature. Why? Why don't they cut off the power at 100*F over the normal operating temperature? 750*F-800*F just seems like it is asking for trouble.
Just curious...Do you agree that a high temp thermostat (or Fridge Defend) is a reasonable modification to add some protection against overheating (and set it to cut power at something like 410*F-420*F, and turn it back on once the boiler gets down to ~330*F)? I'd be interested to hear if you think it is worthwhile. My DIY fix will cost me ~$25.
Regards,
Chris
