Question about Honeywell Programmable Thermostat Heater

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I get the mesage 1bAT Lo When I replace the batteries the message stays on and I can't program the thermostat. The batteries are new and are OK.

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Try reseting the thermostat there will be a small button near the temp. control buttons you will need to push it with a pin pen or pencil because of its size

Posted on Aug 25, 2010

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1 Answer

Honey wire


Look for reset button push in and try to Program if this doesn't work time to replace T-Stat.

Jul 05, 2013 | Honeywell Programmable Thermostat Heater

1 Answer

Our Honeywell programmable thermostat T8132A 1049 1 controls a Gasglo gas central heater. An old battery leaked onto one battery contact; even with new batteries the BATT LO message came up. After...


The T8132A thermstat requires 2 AA alkaline batteries for operation as the T8131 uses the 24VAC souce transformer with battery back up. If new batteries did not fix the problem follow product user manual to reset and program the thermostat. This should clear any errors or problems. If the problem persists then replace the thermostat. If you do not feel confident you can accomplish the task then you should call a licensed HVAC technician to troubleshoot the issue as the wrong settings could potentially cause permanent damage to your system.

Link:
http://s3.pexsupply.com/manuals/1287594709924/40775_PROD_FILE.pdf

May 09, 2011 | Honeywell Programmable Thermostat Heater

1 Answer

We have a Honeywell Digital thermosat. We just put brand new batteries in it and it is still showing lo battery.


on most of honeywell units if you pull the face of the thermostat off there is a reset button you can puch and reset try this.... if it does not have a reset remove the red power wire on the "r" terminal and if you have a wire hooked to the "c" terminal remove it at same time ///take batteries out prior to doing this and it will reset the program in thermostat... if the display comes back again with the lo battery the thermostat internally has a issue...good luck

Jan 09, 2011 | Honeywell Programmable Thermostat Heater

2 Answers

My beutler 800 said lo bat we replaced them and still reads bat lo


The other "solution" posted here is not a solution. According to this web site: http://www.espenergy.com/faq_honeywell_thermostat.htm


First, replace the batteries with a new set of AA alkaline batteries. If you insert the new batteries within 20 to 30 seconds of removing the old ones, you will not have to reprogram the thermostat. If the bAt Lo indication does not clear itself once new batteries are placed in the device install the batteries backward for 5 seconds, take them out, and reinstall correctly.

So I tried it... put the batteries in backwards. It completely reset the thermostat so I had to reprogram it (which was easy enough). One thing I did that the instructions did not specify. After I removed the batteries, I let it go completely blank before installing them backwards. Then I waited 5 seconds, pulled em out and put them back in correctly and eventually it started flashing indicating it needed to be programmed. HINT: Don't forget to set the current time!

Dec 04, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

I have an old (14 years) honeywell thermostat, that showed 1bat lo message on the screen. I replaced the batteries, but it still shows the same message and I cannot adjust the temp. I recall earlier...


I subjest the honeywell pro 3000 is a very good stat it comes in programable and non programable their is also a pro 8000 that is great its touch screen and has many options but the 3000 is most cost effective

Sep 14, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

I replaced the batteries, but it still says lo batt. the batteries are new


in some thermostats it is required that you have a common lead hooked to Thermostat and back too the transformer in the air handler unit the batteries are used as a back up in the event the power goes out too keep your program in thermostat. if the common lead is not attached your thermostat is being powered by the batteries only and not the system control power, and will drain batteries fast.

Sep 06, 2010 | Honeywell Programmable Thermostat Heater

2 Answers

Even after replacing the battery, the programmable Honeywell thermostat still shows "Low Batt."


Turn control to off. Remove the batteries for at least one hour. If the display message still reads "bat lo", leave control off, batteries out, and disconnect the red wire on back and wait another hour. Reconnect red wire, put new batteries in and turn system on. It's like a reboot.

Jan 26, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Batt Lo Displayed. I replaced with new batteries. The display still reads Batt Lo and I cannot changed temperature, etc.


sometimes you can bend out the battery holders to allow more tention on the batteries but thats only a temporary repair. a new thermostat is needed

Oct 28, 2009 | Honeywell Programmable Thermostat Heater

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