Replacing a 2-Month-Old Carrier Infinity-C Thermostat After Storm Damage

A fast-moving storm rolled through the Lewinsville Park area of McLean, VA, killing power to this home. When service was restored, the brand-new Carrier Infinity-C user interface (only ~2 months old) came back with a blank, black screen. Power-cycling the system briefly revived cooling, but it failed again within hours. After consulting Carrier tech support, we received the go-ahead for a warranty replacement.

In this short clip you’ll watch me:

1. Pull the non-responsive Infinity-C off the wall for diagnosis.
2. Attempt to release the A-B-C-D low-voltage leads—only to find the push-release terminals jammed.
3. Discover two conductors so locked in place that the terminal blocks ripped clean off the back-plate PCB.

The video highlights why storm-related surges can destroy even new controls, the importance of proper bus voltage checks before re-install, and a cautionary tale about stubborn terminal levers on Carrier back-plates. If you run into a blank Infinity screen after severe weather, this is what the replacement process (and potential pitfalls) look like.

Видео Replacing a 2-Month-Old Carrier Infinity-C Thermostat After Storm Damage канала Nelson's HVAC, LLC