burnhamalpine

Let's start with me as the homeowner admitting I did everything wrong on this install 7 years ago. Back story: in 2010 bought a slab ranch house in SE PA (think suburb between Philly & Wilmington De) 3 bedroom, 2 bath at about 2100 sqft with cast iron baseboard heat all on 1 zone with separate...

I have an ALP210 that was installed in our new home in October 2014. It's worked fine until a couple of months ago. The problem used to occur occasionally but now it happens at least a few times a day. The system will be "running" according to the front panel display, and the supply temps are...