I set my Nest Thermostat E up but i think it keeps blowing the fuse to my heating programmer

[rgaila]

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Original Poster: Jordan Hoskins 

I have connected the Thermostat with the instructions provided, when I woke up the next morning my heating programmer wasn’t working meaning the boiler wouldn’t work. I have attached some photos of my old thermostat, the new one and my heating programmer 

[rgaila]

Hey Jordan,

If you keep blowing a fuse when trying to run the system, there is a good chance that something is not set up right. I would recommend having a Nest Pro come out and take a closer look at your system, as you do not want to cause permanent damage to your HVAC. Let me know if you have any other questions from here, and hope this helps.

-From  Jake K, Community Specialist.