No c wire on trane air handler

[Thk4414]

Installed Nest thermostat.  It is running and can control it through home app. 

There is a code N262. 

I went to the handler and there is no C wire terminal, though there is a C wire at my thermostat and I have it connected.  

I have a Trane. 

[Patrick_Caezza]

@Thk4414 

Trane uses B as the C wire. You should see a B terminal in the furnace/air handler.

The N262 error code means the battery levels might be low and you should check them and/or replace them.

Troubleshoot E296 and N262 codes

If you find an E296 or N262 on the thermostat, check the battery level and replace the batteries, if necessary.

To prevent this from happening again, install a common wire or power accessory like the Nest Power Connector.

• You can purchase a Nest Power Connector and install it yourself, or contact an HVAC professional or local pro to install a common wire or power connector. If your thermostat was professionally installed, you can find your installer’s contact information on your thermostat.
• You may already have an unused thermostat wire that can be used as a C wire.  Contact an HVAC professional or follow the instructions here: Connect a C wire.

Note: Pros are a network of independent companies or contractors and are not employed by Google Nest.

[Thk4414]

Thank you so much. I did some googling and I found exactly what you said as well. Everything works great. Thank you for your response.