Nest learning thermostat keeps cutting on and off and back on

[FlintLegalSmoke]

When I go to heat my house the thermostat will cut the heat on for 3 seconds stop for 1 second then start heating back up again. And it will continue to do this over and over again. I can't figure out why. It doesn't do it everything but when it does it can be really annoying because my house can't heat up because the heating cycles are literally seconds long

[Markjosephp]

Hello FlintLegalSmoke,

Thank you for bringing the issue with your heating system to our attention. We understand the inconvenience you must be facing due to the erratic heating cycles.

A power-related issue could be a potential cause, as the thermostat sends a signal to the system, but it appears to be having difficulty generating heat. To better look into this, gather the power readouts in the Technical Info and check for any wiring reports or message codes in the Equipment settings. Also, does it have a C wire installed?

I'll look forward to your response.

Best regards,
Mark