2. Reset the thermostat to factory specs. This can correct some problems with invalid temperature measurement when the thermistor inside the thermostat is being used. This sequence definitely works with 4-button thermostats. I do not have a 5-button unit to test so I cannot say if it works on 5-button thermostats. Do the following in the order below:
-- Turn the thermostat on
-- press any button once
-- press and hold the bottom 2 buttons in
-- press and release the mode button one time
-- release the bottom 2 buttons
-- press and release the mode button
-- if you did the above sequence correctly, the thermostat backlight will turn off. If it does not turn off, do the above sequence again.
This has NOTHING to do with temp sensing issues. ALL this does is reset to the TEMP preset on the tstat (usually 72 degrees and just verifies the DIP switch settings on each control board. NOTHING else. A LOT of people think the reset is like resetting a PC. It is NOT. It does NOTHING for operational issues. As to your assertion that people are spending money when the system can be fixed. You are correct, but at $125 per hour average labor, It would cost HUNDREDS of dollars to do all things you have suggested with no guarantee that the system will function after it is done. Now, if you have the tech smarts you have, then it is worth the time and effort. MOST rv'ers do not have the knowledge and expertise to do what you did. Besides, 4 button systems were discontinued almost 13 years ago, so paying someone to do that work is not cost efficient. Doug
