Thermostat seems dead after battery change

Johnny_D

Thanks Mbraeke1. Solved!

Noudsch

I also had one contact corroded. Strange cause batteries looked fine.

Clarencebean

Same issue as everyone else here. Tried various sets of new AAA batteries, all combinations of ways…the tin foil trick worked for me. Thanks, @mbraeke1

Tessa

Tried EVERYTHING suggested here and nothing works
Beginning to hate the system!

mbraeke1

@Tessa

Can you describe the issue?

ColMustard

Same issue - Wireless Temperature Sensor is dead - batteries charged, orientation correct, connection good. Totally dead. The difference for me was that prior to this the readings malfunctioned, i.e. constantly reading 50% humidity, 20C.

joeymoose

I've found a solution to this!
Before I go on, as an engineer I have to say that the quality of this product is not good, should never happen.
The root cause would appear to be a poorly designed battery holder.
To remedy I purchased a 3xAAA battery holder for £3 or so off ebay. To fit this I removed the metal terminals from the existing battery tray, I did this by prizing them up carefully. I then removed the red and black wiring from the terminal leaving the maximum length I could. I then simply twisted the new wires to the left over wire. I double sided taped the new tray to the back of the box. It's not beautiful, but it works and cost £3!

EmilDenmark

@joeymoose

Do you have a picture of the solution?
Also, when did you buy your units? I'm trying to figure out if this is a production error of earlier models, or if I'm just delaying getting the same error again later, if I buy new ones to replace the bricked units.

GaryE

Reviving this old thread because it just saved me from giving up and buying a replacement for our three-year-old thermostat which suddenly stopped working after a battery change. The batteries were indeed the wrong way round. Correctly inserted, it sprang back into life instantly. Moronic bit of design by Tado! Phew.