| Hi Gary,
Welcome to DIY. We are all Pros at somethings and DIYers at others it seems here.
While we do recommend calling in a Pro from time to time, it's not usually the first answer.
First, the VisionPro is a very tight stat. When you bump the set temp "up", the stat actually sees the space temp go down. It thinks the HP can't keep up and asks the furnace for help. This is why you get both at the same time.
The only thing the defrost board does with respect to the furnace is turn it on when the outdoor unit goes into defrost.
Can you post what these settings are?
0170
0200
0250
0350
0360
Also don't be surprised if I move this thread to Thermostatic Controls where it should be. For now though lets leave it here. __________________
While redundancy can seem redundant, I don't think it ever killed anyone. |