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Honeywell T8131C Support Question

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Question posted by manderson1 on December 5th, 2018

Lo Battery Indicator With New Batteries

Lo Battery indicator with new batteries, heat stays on 68

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Answer #1: Posted by techyagent on December 5th, 2018 9:37 AM

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techyagent

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Troubleshoot "Batt Lo"Step 1

Grip the face plate of the thermostat and pull it away from the wall plate to expose the batteries.

Step 2

Pull out the three AAA batteries.

Step 3

Put in three fresh AAA batteries. Make sure the positive and negative terminals on the battery are lined up with the positive and negative receptors on the thermostat.

Step 4

Replace the thermostat's cover. The display will no longer flash "Batt Lo."

Troubleshoot a Honeywell Programmable Thermostat that Won't ResetStep 1

Find the circuit breaker in your home that controls the electricity to the programmable thermostat.

Step 2

Turn the circuit breaker off and keep it off for 5 seconds.

Step 3

Turn the circuit breaker back on.

Thanks

Techygirl

Related Honeywell T8131C Manual Pages

Owner's Manual - Page 1

T8131C Programmable Thermostat OWNER'S GUIDE Weekday/Weekend Programmable Heat and/or Cool Thermostat and Mounting Plate 1 696-90-801821-2-2

Owner's Manual - Page 2

...temperature control. By following the simple programming instructions in your new Honeywell programmable thermostat. Your new T8131 Thermostat is designed to Honeywell Customer Assistance at 1-800-468-1502,... thermostat will automatically control the temperature in this thermostat to provide you with your home. Direct questions concerning the operation of heating or air conditioning.

Owner's Manual - Page 3

Table of Contents Page Programming Thermostat ...4 Program Schedule ...6 T8131C Programming Guide ...8 Setting Fan and System Switches 12 Installing Batteries ...13 Troubleshooting Guide ...15 Limited One-Year Warranty Inside Back Cover 3 69-0812-2

Owner's Manual - Page 4

.... (During weekends, only the WAKE and SLEEP time periods are available.) Use the personal Program Schedule for planning your program schedule of the day. Programming Thermostat NOTE: When batteries are installed, your T8131 Thermostat can be a higher temperature during heating season, or a lower temperature during weekdays -WAKE, LEAVE, RETURN, and SLEEP. however, installed...

Owner's Manual - Page 5

...or pencil points can damage the keypad. When pressing the keys, use the ball of your schedule does not require it automatically controls heating at 68°F (20°C) and cooling at the last step. 5 69-0812-2 Select LEAVE if you want an energy-saving temperature ... key, and continue again at 78°F (26°C), 24 hours a day. If you decide not to program the thermostat, it .

Owner's Manual - Page 6

... SCHEDULE Weekdays WAKE 1 LEAVE RETURN 1 SLEEP Weekends WAKE 1 SLEEP Start Time Heating Temperature 2 1 WAKE and RETURN start times should include extra lead time, based on outside temperature and furnace response time, to give your furnace a head start to heat the house. 2 The temperatures cannot be set any higher than 88°F (31...

Owner's Manual - Page 7

... RETURN start times should include extra lead time, based on outside temperature and furnace response time, to give your furnace a head start to program the thermostat, it automatically controls heating at 68°F (20°C) and cooling at 78°F (26°C), 24 hours a day. 7 69-0812-2 NOTE: If you decide not to...

Owner's Manual - Page 8

... Ahead until current time shows; T8131C Programming Guide NOTE: Batteries are required only for armchair programming, and to OFF. Remove the battery door (on display. 8 69-0812-2 Follow instructions in memory if ac power is lost. WAKE, MON-FRI and SET appear on the thermostat left side) using a coin at HEAT, press and release Weekday...

Owner's Manual - Page 9

Repeat sequence for Sat-Sun. After programming, adjust fan and system switches, as for the Heating Program. Press and release Run Program to start the program. 9 69-0812-2 Press Back to program Warmer WAKE time and press to program WAKE temperature ...

Owner's Manual - Page 10

Cooler Check Current Temperature Setting-press Present Setting . A quick guide for operating or making changes follows: NOTE: Set system switch to HEAT or COOL to cancel sooner, press Run Program . ; then press Run Program . 10 69-0812-2 to perform the following: Warmer Temporarily Change temperature for current ...

Owner's Manual - Page 11

... Cooling Program sections (pages 5 and 6), as applicable. Call Honeywell Customer Assistance 1-800-468-6195-00281. 2-2 then press Clear . Press Clear to determine length of time heat or air conditioning has been on since midnight; Check Usage - then press Run Program . Return to cancel shows; press again for yesterday's usage, and again...

Owner's Manual - Page 12

... switch. ON: The fan runs continuously. Then set the fan switch. OFF: Both the heating and air conditioning systems are off. COOL: The thermostat controls Cool Off Heat your heating system. 12 69-0812-2 Cool Off Heat HEAT: The thermostat controls Cool Off Heat your air conditioning system. A single-speed fan turns on low with the air conditioner...

Owner's Manual - Page 13

... not last as long. We recommend Energizer® batteries. • Make sure the thermostat is set to the OFF position. • Use a coin to retain your personal temperature schedule in memory if ac power is lost. • Use two AA alkaline batteries; Installing Batteries IMPORTANT Batteries are required only for armchair programming and to remove...

Owner's Manual - Page 14

... of removing the old ones, the thermostat does not require reprogramming. If you insert new batteries within 20 to assure memory retention if ac power is lost. However, if the display is blank, the batteries are dead or incorrectly installed and the thermostat requires reprogramming. • Install the fresh batteries, as shown, making sure positive and...

Owner's Manual - Page 15

...°C) during programming. s Check that AM and PM indications are correct. s Verify the program times for the period. Reprogram if necessary. s Check that the switch on the thermostat is powered properly. s Check that the green LED is 45°F to 88°F (7°C to HEAT. Temperature change occurs at the wrong times. s Check...

Owner's Manual - Page 16

...thermostat is lit. Allow five to the COOL position. If the air conditioner does not come on (Cont). After ten minutes, return the switch to ten minutes after the 16 69-0812-2 s If temperature setting is lower than the current temperature and displays HEAT...circuit breaker and replace or reset, if necessary. s The thermostat has a built-in time delay on , the compressor could ...

Owner's Manual - Page 17

... after fresh batteries are installed. Wait one hour. bAt Lo remains on (Cont). s Contact your heating or air conditioner contractor. The house is too short or too long. SYSTEM ON indicator is lit, but no heat is normal for the furnace to heat up and the fan to check the current temperature setting. The current thermostat setting...

Owner's Manual - Page 18

...Indianapolis Cincinnati Kansas City St. Louis Columbus New York Philadelphia Seattle Louisville Portland Wash., D C San Francisco Dallas Atlanta Los Angeles *Based on 10°F (5°...Ottawa Toronto Edmonton Regina Winnipeg Calgary Moncton North Bay Quebec St. John's Halifax Vancouver Thermostat patents pending. AND CANADA Savings for Once-A-Day 10°F (5°C) decrease ...

Owner's Manual - Page 19

... the dealer or contractor from which you . This warranty gives you specific legal rights, and you . Limited One-Year Warranty Honeywell warrants this product, excluding battery, to be to repair or replace the product within a reasonable period of time. Honeywell's sole responsibility shall be free from defects in the possession of...

Owner's Manual - Page 20

...69-0812-2 If additional assistance is needed, call , please have the following information available: Thermostat model number and date code, and type of heating/cooling system (for example, hot water, warm air, oil and gas). Home and Building...; 1996 Honeywell Inc. Central time. Toll-free Customer Assistance For all questions concerning this thermostat, please read and follow the instructions.