We recently built a home. We have two ac units. One upstairs controlling only one zone and another in the basement controlling three zones using a Honeywell hz322. The multi zone unit fan runs constantly even when the furnace isnt fired up. How do I isolate and resolve the issue? We’re using 4 learning thermostats all together and have them controllable via nest app also
Thanks for reaching out. Commonly, this might be caused by power issues that the system may need professional maintenance. For us to narrow down the issue, you can give answers to the questions below:
I'm looking forward to your response.