New Nest E offline comes and go error code E195

[DougE]

Installed by my electric provider, Eversource.

Offline intermittently, furnace is running no problem there, seems to work only when the furnace is running, not when the fan is running. Unit says it is connected to my Wi-Fi w strong signal.

its the error E195 saying that the red R wire has no power. Power was confirmed by the installer. Used only for heat, only 2 wires.

can anything be done by me or is this a wiring furnace issue?

[EdmondB]

Hello DougE,

I'm here to assist you with your Nest thermostat power issue. We'll work together to identify the cause of the problem and find a solution. Just to confirm: Did the installer use a voltmeter to check the voltage between the two wires? If yes, what is the voltage showing on the voltmeter? Have you tried swapping the two wires? 

I look forward to your response. 

Best,
Edmond

[DougE]

The Nest was installed free from my electric provider, Eversource, there was error code then but he checked and confirmed that there was power, I think he said 24.

It just loses connection to the app but it does work well as a thermostat.

Is it recommended to switch wires?

[zoeuvre]

Hi folks.

@DougE, chiming in—follow these steps: 

1. Make sure your breakers are on. 
2. If you used AC recently, check your system’s drip pan or drain tubes (skip this step if you only has a heating system)
3. Check the condition of the HVAC fuse. 
4. Check if you have an energy savings box. 
   •  Search for an energy savings box near the electric meter (possibly near their air conditioner).
   •  Search for a small box with 2 lights on it (one light is red, the other is usually green). This box allows the utility company to cycle the customer’s air conditioner off and on during certain peak times of the day.
5. Check your air filter for possible clogging.
6. Gather the power readouts of Battery, VOC, VIN, and lIN from the thermostat. 
   • Go to Settings > Technical Info > Power.
7. Make sure the thermostat wires are properly stripped and seated in the thermostat base. 
8. If there’s a common wire connected in the C terminal, remove it. Note to turn off the power to the system at the breaker box before proceeding. 

Let us know how it goes. 

I appreciate your help, Edmond. 

Thanks,

Zoe

[DougE]

Thanks Edmund. Too much techy **bleep**. It’s working just fine as a thermostat, we just lose WI-FI  connection occasionally, no big deal. It goes off and on, I’ll just make sure the rechargeable batteries are charged and life will go on. 

[DougE]

I did all that and no change except now my furnace is making a new sound as if it is trying to fire up, that is new.

I want a technician sent to solve this problem, my oil company will not service Nest.

the unit is defective or improperly wired by the installer.

thanks

[DougE]

1. Breakers are on

2. There is no AC

3. HVAC fuse?

4. Energy savings box?

5. air filters new

6. power readouts? Now what?

7. Wires stripped and bare. It was professionally instaleed

8. What is a C wire?

9. support your product and stop using me as your technician.

10. Rinse and repeat until I give up.

4. Energy savings box? Huh?

5. Air filters are new

6. 

[DougE]

I called my HVAC technician b/c my furnace was “acting up”. The Nest was replaced w old thermostat, so far, furnace is working, nest is on my desk, we shall see. He was not impressed w Nest. 👀

[zoeuvre]

Hi DougE,

It's me again—any updates after you reinstall your old thermostat? How's it going so far? 

Regards,

Zoe

[DougE]

The Nest was creating havoc w my furnace and so after an HVAC professional reviewed what was happening w my furnace and we agreed to remove the Nest and reinstall my previous thermostat. Nest do not work w a 2 wire system.I have had no problems since then

[zoeuvre]

Hi there, 

We're sad to see you go. We're always here to help if you ever change your mind. If you come across other information you'd like to pass along or have more questions, feel free to create a new post. 

All the best,

Zoe