Uncategorized – madebot https://madebot.com daily diy Mon, 14 Feb 2022 22:04:04 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.2 185483661 Reset your Honeywell thermostat Batt Lo https://madebot.com/reset-your-honeywell-thermostat-batt-lo/ https://madebot.com/reset-your-honeywell-thermostat-batt-lo/#respond Mon, 14 Feb 2022 22:01:39 +0000 https://madebot.com/?p=64 Continue reading Reset your Honeywell thermostat Batt Lo]]> Is your Honeywell thermostat stuck on “Batt Lo”? I was recently wondering why it was so cold in my house, so I went to check the thermostat. Lo and behold, the display was showing nothing. The heat did turn on if I moved the sliding switch, but the thermostat was not programmable.

After examining the thermostat, I realized that it actually takes 2 AA batteries. Go figure, I don’t recall every changing them. After removing the dead and leaky batteries, I replaced them. The display lit up but it still showed “Batt Lo” and would not let me set the schedule. After cleaning the contacts on the leads and trying various batteries I still couldn’t get it to clear. In order to get it to get rid of Batt Lo, try this:

  1. Set system switch to OFF.
  2. Located and remove the battery cover (If it’s like my Honeywell T8112D1005 use a coin on the bottom of the left-side panel.)
  3. Insert both new batteries backwards (+ to – and – to +).
  4. Wait 5 seconds. (Steps 3 and 4 are what clears the Batt Lo condition. Alternatively, you can reset the circuit breaker that your thermostat is attached to, but I found this to be easier.)
  5. Flip the batteries and install them the correct way (+ to + and – to -)
  6. Set system switch to HEAT or COOL
  7. Re-program and set the schedule.
  8. Enjoy your heat – or cold.
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