Learning nest and multi zone system fan constantly running

[Kyleumortensen]

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

[Jenelyn_O]

Hi Kyleumortensen,

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:

• What other strange symptoms have you experienced since the problem started?
• Are there any messages you notice on the Thermostat or on the Nest App? If so, what are they exactly?
• Do you notice any intervals or specific patterns between these strange behaviors?
• When was the last maintenance check for your HVAC system?
• Is this the first time you are activating cooling since the season changed? (Example: winter to spring)
• Do they have a common ground wire or C wire?
• Please check the power readouts on the Nest Thermostat settings below Technical Info.

I'm looking forward to your response.

Regards,

Jenelyn

[Jenelyn_O]

Hi Kyleumortensen,

I wanted to follow up and see if you still need help. Please let me know if you are still having any concerns or questions from here, as I would be happy to take a closer look and assist you further.

Best,

Jenelyn

[Jenelyn_O]

Hi Kyleumortensen,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this thread in 24 hours.

Best,

Jenelyn