Why is one newly installed thermostat not turning on?
A newly installed thermostat or device can fail to power on in a single location even when wiring and power appear correct. This leaves users unable to get the equipment working and forces them to troubleshoot underlying electrical or hardware incompatibilities.
Overview
People affected2 accounts across 2 forums
Workarounds found1 item attempted
Community agreement2 total upvotes
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
1 item+ Contribute
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Having a journeyman electrician take over troubleshootingDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
r/hvacadvice1 person · September 2026
r/askanelectrician1 person · September 2026