Nest Learning Thermostat 3rd Gen Post Installation

[DaveWap]

Hi All. 

I recently installed the Nest Learning thermostat and since I installed it I've been having a few issues. I've noticed that the "time to temperature" has been inaccurate and keeps changing. Along with that I hear my AC clicking on and distributing cold air but then then maybe two minutes later it stops cold air output. Also my AC/Heating unit has now started to occasionally make a clicking noise which I never heard when using my old thermostat  (Honeywell Home T1 Pro). Does anyone know the best fixes for both of these issues?

Thanks for the help

[Markjosephp]

Hello DaveWap,

I'm sorry for any trouble this may have caused you after the installation. Let's see what's going on and why your system makes strange noises.

There may be a power issue or thermostat configuration settings that we need to check. To isolate:

• Are there any report messages? If so, what are they exactly?
• Have you checked your heating, ventilation, and air conditioning (HVAC) system's compatibility with your Nest Thermostat through the Compatibility Checker tool?
• What kind of HVAC system do you have? (heat pump, conventional system, etc.)
• Do you notice any intervals or specific patterns between these strange behaviors?
• When was the last maintenance check for your HVAC system?
• Have there been any recent changes or upgrades to your HVAC system?
• Does the issue happen with heating only, cooling only, or both?
• Have you experienced any power outages within the last few days or weeks?
• From what country are you posting?
• Gather the power readings in your thermostat's Equipment settings or in the Technical Info settings.

I'll look forward to your response.

Regards,

Mark