Need help figuring out the rewiring on this as nest isn't getting constant power for charge

[jayceepho]

Problem: Can't seem to get a constant power running into nest learning thermostat to keep a charge. Here's the current set up (as simple as possible) 

THERMOSTAT > 4 wires > green (fan), red (power), white (heating), black (cooling, get to this in a sec)

HVAC > Y W R G C (nest power adapter already connected) > brown insulated wires from HVAC branching to...

1) Thermostat wiring connected to nest (beige insulated)

2) Compressor (dark thin brown insulated)

How can I go about the wire nuts to get power running to the thermostat wiring (beige insulated wire)?

  

 

 

[CoolingWizard]

@jayceepho ,

Your Nest Power Adaptor is wired correctly. Your two cables are interconnected as follows:

If you are still not getting power at all, you need to check for a blown fuse at the HVAC control board.  

AC Cooling Wizard 

[jayceepho]

Hey @CoolingWizard thanks for the reply! Fuse looks to be fine… I switched out and still the same issue of not getting charging power to thermostat.

[CoolingWizard]

@jayceepho , does your nest thermostat “see” or otherwise recognize the Power Adapter?

AC Cooling Wizard

[jayceepho]

How can I confirm it does? Would it show some kind of notification because I don’t see anything related to that

[CoolingWizard]

@jayceepho , when you use a Nest Power Connector, the Nest Thermostat needs to recognize it is being used.  In my experience the Nest Leaning Thermostats are supposed to automatically recognized without a software update.  On your nest display go to SETTINGS > POWER CONNECTOR > POWER TEST.

AC Cooling Wizard

[jayceepho]

Hey @CoolingWizard  so I’ve tried to re position the wires but still no luck. I see no option for power connector either on my nest learning 

[CoolingWizard]

@jayceepho ,

Try to update the software on your Nest Thermostat, I know that some of the older version do not recognize the Power Connector until after the software update.  

AC Cooling Wizard

[jayceepho]

Already updated to latest version

[EdmondB]

Hey everyone,

@jayceepho, we'd like to know more about this. Please fill out this form so we could investigate further.

Thanks for the input, @CoolingWizard.

Best,
Edmond

[Jenelyn_O]

Hi jayceepho,

Chiming in — I just want to check if you were able to fill out the form. Please let us know once done.

I appreciate the help, @CoolingWizard and Edmond.

Thanks,

Jenelyn

[CoolingWizard]

@jayceepho ,

at this point I am a loss as well.  I know from experience the Nest Thermostat must communicate with the Nest power connector before it can initiate and use. Once that is complete, and new entry shows up under SETTINGS>POWER

AC Cooling Wizard