|
Cindy, Mike is right about the voltage at the input of your furnace board. It should run a little over 13 volts down to 12 volts checked with a digital meter. I can't imagine a low voltage taking out the mother board. I suspect, that in your case with all of the replacements you have had, that there is something wrong with the mounting of the mother board and it is being cracked when you are moving on the road. All it takes is a very small crack in the board. And it is out of business. You might not be able to see it. Something to check.
Okie
__________________
Okies on the road
15 Columbus 381FL
08 F450
|