This really spooked me this morning. I went to change the thermostat and static electricity from my finger caused a spark. The thermostat went blank.
I tried resetting it via the tiny hole, but that didn’t fix it.
So of course I got online and Googled it. Apparently the lack of humidity in your home can cause the problem of static electricity.
10 Possible Reasons Your Thermostat Goes Blank:
- If you live with others, someone could have turned the thermostat off
- The batteries are dead
- The circuit breaker tripped
- The air filter is dirty
- Some units have safety switches, and it could have been triggered
- Dust in the wiring, thus dirty wiring
- The fuse has blown
- There are wiring issues
- Mismatched parts aren’t compatible
- Thermostat needs to be replaced
I called the number listed on the inside door of the thermostat for help, but being Sunday, no one was there. Well, great.
Still Googling my dilemma, I read to take the batteries out and switch them backwards. Then turn them back around. That didn’t work.
Finally I just put new batteries in and the thermostat reading showed back up. So I suppose I only zapped the batteries. Fingers crossed.
Whew! It is snowing and very cold today.
From what I read, sometimes static electricity can ruin the thermostat. Mine has come back on, so I think everything is okay.
I Read You Could Discharge Static Electricity By Doing This:
Before you touch the thermostat, touch the screw on an electrical light switch.
Since the light switch face plate screws into the metal switch, that should discharge the static electricity. And hopefully save you from damaging the computer board in the digital thermostat.
Here is good information about static electricity and how to control it.