To Next PageTo Next PageWhat to do if heat pump or auxiliary heat won't operate on Honeywell CHRONOTHERM III T8611M?
If your heat pump or auxiliary heat isn't working with your Honeywell Thermostat, check the following: * Ensure there's AC power to the thermostat. * Verify the on-off switch, fuse, or circuit breaker. * Look for loose 24V connections at the thermostat and the heating system. * Check the wiring against the wiring diagram for any errors.
Why does my Honeywell Thermostat temperature need regular adjustments?
If you find yourself constantly adjusting the temperature on your Honeywell Thermostat, it may be because you're using the Warmer/Cooler keys for temporary changes. To make a permanent change, reprogram the thermostat. Remember to press the Period key first; otherwise, the Warmer/Cooler adjustments are only temporary.
Why is my Honeywell Thermostat display flashing during operation?
If the display on your Honeywell Thermostat flashes during operation, it indicates that the programming has been lost due to a power outage. Reprogram the thermostat according to the programming instructions, ensuring that batteries are installed.
Why is my Honeywell Thermostat setting inaccurate?
If the present setting appears inaccurate on your Honeywell Thermostat, it might be in recovery mode. During normal operation, the thermostat turns on heating/cooling early to meet the temperature setting at programmed times. You can end recovery mode by pushing the Warmer/Cooler keys.
What to do if my Honeywell CHRONOTHERM III T8611M display flashes while programming?
If your Honeywell Thermostat display flashes while you are programming it, it could be due to an improper program sequence, so check the owner's manual for the correct programming steps. Also, ensure that the heating and cooling temperatures are set at least 3°F apart.
What to do if my Honeywell Thermostat batteries are dead?
Replace the batteries.
Why is my Honeywell CHRONOTHERM III T8611M Thermostat room temperature wrong on weekends?
If the room temperature is not as expected on weekends, it is possible that the Honeywell Thermostat is not programmed for weekends. Reprogram it for weekends according to the provided instructions.
What to do if my Honeywell CHRONOTHERM III T8611M has a partial display?
If your Honeywell Thermostat shows only a partial display, the thermostat may be inoperative and needs replacement.
General| Power Source | 24V AC |
|---|---|
| Display | LCD |
| Schedule | 7-Day Programmable |
| Programmability | Yes |
| Stages | 1 Heat/1 Cool |
| Power Method | Hardwired |
| Terminal Designations | R, W, Y, G, C |
| Backup Battery | No |
| Programmable Periods | 4 per day |
| Type | Programmable |
| Compatibility | Heating and Cooling Systems |
| Switch Positions (System) | Heat, Off, Cool |
| Switch Positions (Fan) | On, Auto |
| Voltage | 24VAC |
Details about the TRADELINE models available and their packaging.
Explains the function of the SYSTEM, EM.HT., AUX.HT., and CHECK LEDs on the thermostat.
Lists available replacement parts for the thermostat, such as doors and sensors.
Lists optional accessories like cover plates and thermostat guards for enhanced functionality.
Factors to consider when replacing an existing thermostat, including equipment and wiring needs.
Discusses security features and options for restricting access to the thermostat's programming.
Factors to consider for new thermostat installations, such as equipment type and wiring requirements.
States the thermostat's compatibility with most heat pump systems and low-volt control systems.
Essential precautions and steps to take before and during product installation.
Guidelines for selecting the optimal location for the thermostat and remote sensor to ensure accurate readings.
Instructions for safely removing an old thermostat before installing the new one.
Steps for running thermostat cable and wiring for new installations.
Instructions for mounting the thermostat subbase onto the wall or an electrical box.
Detailed steps for mounting the optional remote temperature sensor on the wall.
Explains how to adjust the cycle rate for auxiliary heat to optimize comfort and savings.
Instructions for installing backup batteries to maintain program during power outages.
Information on how the thermostat handles power outages and what happens when power is restored.
Steps for attaching the thermostat unit to its mounted subbase.
Instructions for setting the current day and time on the thermostat after installation.
Procedure to test the heating operation of the thermostat and connected system.
Procedure to test the cooling operation of the thermostat and connected system.
Instructions for testing the fan operation in both continuous and automatic modes.
Guide to performing the installer self-test to verify all thermostat functions and responses.
Step-by-step guide to setting the current day and time on the thermostat.
Detailed instructions for programming the daily time and temperature settings for a single day.
Explains how to copy a programmed day's schedule to other days of the week.
Instructions for setting schedules and temperatures for the remaining days after copying.
Guidance on setting the system and fan switches on the subbase according to the installation requirements.
How to temporarily override programmed settings for comfort or convenience.
Steps to update or change existing programmed settings without affecting the entire schedule.
How to set a constant temperature for extended periods like vacations or absences.
Instructions for canceling specific time periods or entire days from the programmed schedule.
Explains the Adaptive Intelligent Recovery feature for optimized comfort and energy savings.
Describes how the thermostat manages heating recovery from energy-saving modes in various weather conditions.
Discusses the thermostat's thermal performance, including heat anticipation and droop elimination.
Details the minimum-off timer feature that protects the compressor by preventing short cycling.
