topic C Wire Adapter - 2 wires in 'R' terminal screw in Nest Thermostats https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/382732#M82507 <P>Mine is a 'Heating only' system. I am trying to install the " Nest Thermostat C Wire Adapter".</P><P>I see 2 red wires connected to the 'R' terminal screw in my furnace. Should I connect (move) both the wires to wire connector?&nbsp;</P><P>Please see the picture attached.&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="PXL_20230320_203946077.jpg" style="width: 999px;"><img src="https://www.googlenestcommunity.com/t5/image/serverpage/image-id/22552iB54E795C1ABDDE40/image-size/large/is-moderation-mode/true?v=v2&amp;px=999" role="button" title="PXL_20230320_203946077.jpg" alt="PXL_20230320_203946077.jpg" /></span></P> Tue, 21 Mar 2023 02:55:41 GMT vepathur 2023-03-21T02:55:41Z C Wire Adapter - 2 wires in 'R' terminal screw https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/382732#M82507 <P>Mine is a 'Heating only' system. I am trying to install the " Nest Thermostat C Wire Adapter".</P><P>I see 2 red wires connected to the 'R' terminal screw in my furnace. Should I connect (move) both the wires to wire connector?&nbsp;</P><P>Please see the picture attached.&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="PXL_20230320_203946077.jpg" style="width: 999px;"><img src="https://www.googlenestcommunity.com/t5/image/serverpage/image-id/22552iB54E795C1ABDDE40/image-size/large/is-moderation-mode/true?v=v2&amp;px=999" role="button" title="PXL_20230320_203946077.jpg" alt="PXL_20230320_203946077.jpg" /></span></P> Tue, 21 Mar 2023 02:55:41 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/382732#M82507 vepathur 2023-03-21T02:55:41Z Re: C Wire Adapter - 2 wires in 'R' terminal screw https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/382773#M82512 <P><a href="https://www.googlenestcommunity.com/t5/user/viewprofilepage/user-id/329145">@vepathur</a>&nbsp;</P> <P>Is there a humidifier installed?</P> <P>Can you post a picture of the original thermostat wiring?</P> Tue, 21 Mar 2023 03:37:35 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/382773#M82512 Patrick_Caezza 2023-03-21T03:37:35Z Re: C Wire Adapter - 2 wires in 'R' terminal screw https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/382781#M82515 <P>I dont have a humidifier.&nbsp; My older thermostat pic.&nbsp;</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="PXL_20221021_210023748.jpg" style="width: 999px;"><img src="https://www.googlenestcommunity.com/t5/image/serverpage/image-id/22553i5A93673853A1B70E/image-size/large/is-moderation-mode/true?v=v2&amp;px=999" role="button" title="PXL_20221021_210023748.jpg" alt="PXL_20221021_210023748.jpg" /></span></P> Tue, 21 Mar 2023 03:54:00 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/382781#M82515 vepathur 2023-03-21T03:54:00Z Re: C Wire Adapter - 2 wires in 'R' terminal screw https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/383339#M82661 <P><a href="https://www.googlenestcommunity.com/t5/user/viewprofilepage/user-id/329145">@vepathur</a>&nbsp;</P> <P>You have something strange going on as the wires on the thermostat don't match the wires at the furnace control board.</P> <P>You need to trace the cable coming from the thermostat and see where it is connect and changing the wires</P> Tue, 21 Mar 2023 22:59:42 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/383339#M82661 Patrick_Caezza 2023-03-21T22:59:42Z Re: C Wire Adapter - 2 wires in 'R' terminal screw https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/386114#M83342 <P>Hey vepathur,</P> <P>&nbsp;</P> <P>Checking in — we hope you've got the answer you're looking for. Let us know if you have more questions in mind.</P> <P><BR />I appreciate the help, Patrick_Caezza.</P> <P>&nbsp;</P> <P>Thanks,</P> <P>Archie</P> Mon, 27 Mar 2023 02:37:13 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/386114#M83342 aatienza 2023-03-27T02:37:13Z Re: C Wire Adapter - 2 wires in 'R' terminal screw https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/386570#M83470 <P>Hi Archie and Patrick - Thank you very much for your inputs. I found it difficult to trace through thre wires upto the HVAC; so I switch to use a&nbsp;<SPAN>24 Volt C wire adapter to power up my Google nest. That suites my needs.&nbsp;</SPAN></P> Mon, 27 Mar 2023 22:37:22 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/386570#M83470 vepathur 2023-03-27T22:37:22Z Re: C Wire Adapter - 2 wires in 'R' terminal screw https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/388444#M83818 <P>Hi everyone,<BR /><BR /><a href="https://www.googlenestcommunity.com/t5/user/viewprofilepage/user-id/329145">@vepathur</a>, thanks for getting back to us and we're glad that it's resolved now. We’ll consider this one complete so let us know if you have other questions or concerns as I will be locking this after 24 hours. Feel free to start a new thread and we'll be happy to help.<BR /><BR />I appreciate the help, Patrick_Caezza and Archie.<BR />&nbsp;<BR />Best,<BR />Emerson</P> Thu, 30 Mar 2023 22:11:59 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/C-Wire-Adapter-2-wires-in-R-terminal-screw/m-p/388444#M83818 EmersonB 2023-03-30T22:11:59Z