Honeywell TH8110U Troubleshooting see Table, Troubleshooting Symptom Possible Cause Action

Models: TH8110U

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TH8110U TOUCH SCREEN PROGRAMMABLE THERMOSTATS

CAUTION

Equipment Damage Hazard.

Minimum compressor off-time is bypassed during Installer System Test.

Avoid cycling compressor quickly.

Table 7. System Test(s).

 

 

 

 

 

 

 

 

Installer

Factory Setting

Other Choices

 

Select

Setup

 

 

 

 

 

Number

Options

Description

Options

Description

Comments

 

 

 

 

 

 

 

Installer Test

Test 1

0

Cool is off

1

0—cool off

System selection deter-

Cool

 

 

 

 

1—cool stage 1

mines tests available and

 

 

 

 

 

turns on

number of stages shown.

 

 

 

 

 

 

 

Installer Test

Test 2

0

Fan is off

1

0—fan off

 

Fan

 

 

 

 

1—fan turns on

 

 

 

 

 

 

 

 

Installer Test

Test 3

0

Heat is off

1

0—heat off

 

Heat

 

 

 

 

1—stage 1heat on

 

 

 

 

 

 

 

 

TROUBLESHOOTING (SEE TABLE 8)

Table 8. Troubleshooting.

 

 

 

Symptom

Possible Cause

Action

 

 

 

Display does not come on.

Thermostat is not being

Check for 24 Vac between C and Rc.

 

powered.

Verify AAA batteries installed correctly and good.

 

 

 

Temperature settings do not

The upper or lower

Check temperature setpoints.

change.

temperature limits were

Check Installer Setup Numbers 0600 and 0610;

 

reached.

modify.

 

 

 

 

The keypad is fully locked.

Check Installer Setup Number 0670 to change keypad

 

 

lock options.

 

 

 

Heating or cooling does not

Thermostat minimum off-

Wait up to five minutes for the system to respond.

come on.

time is activated.

 

 

 

 

 

System selection is not set to

Set system Selection to correct position.

 

Heat or Cool.

 

 

 

 

 

O/B terminal is not set

Check Installer Setup Number 0190 and set correctly.

 

correctly (Heat Pumps only).

 

 

 

 

 

System type Selection is

Check Installer Setup Number 0170 and make sure

 

incorrect.

correct System type is chosen.

 

 

 

Thermostat is calling for Heat

Heating or cooling

Check wiring.

(Heat on) or Cool (Cool on) but

equipment is not operating.

Check Installer Setup Number 0170; verify correct

no heating or cooling is running.

 

system type is chosen.

 

 

Verify equipment operation in System Test mode.

 

 

 

Thermostat does not respond

The keypad is locked.

Check Installer Setup Number 0670 to change keypad

when touchpad is pressed.

 

locked options.

 

 

 

Automation and Control Solutions

Honeywell International Inc.

Honeywell Limited-Honeywell Limitée

1985 Douglas Drive North

35 Dynamic Drive

Golden Valley, MN 55422

Scarborough, Ontario

 

M1V 4Z9

69-1700 G.H. 03-04

www.honeywell.com/yourhome

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Honeywell TH8110U installation instructions Troubleshooting see Table, Troubleshooting Symptom Possible Cause Action

TH8110U specifications

The Honeywell TH8110U is a versatile and advanced touchscreen thermostat designed to optimize comfort and energy efficiency in residential heating and cooling systems. This smart thermostat is part of Honeywell's T6 Pro series, combining reliability and convenience with modern technology.

One of the standout features of the TH8110U is its adaptive touchscreen interface. Users can navigate through various settings and configurations effortlessly, thanks to a vibrant and intuitive display. The large screen is easy to read, making it suitable for different lighting conditions and enabling quick adjustments to temperature settings and schedules.

The thermostat supports a wide range of heating and cooling systems, including conventional, heat pump, and multi-stage setups. This versatility makes it an excellent choice for various residential environments, ensuring compatibility with most HVAC systems. Additionally, the TH8110U offers built-in Wi-Fi connectivity, allowing users to control their heating and cooling remotely via a smartphone or tablet. This feature not only enhances user convenience but also allows for real-time updates and monitoring of home energy usage.

Another significant advantage of the TH8110U is its robust scheduling capabilities. Homeowners can create customizable schedules, allowing the thermostat to automatically adjust temperatures based on their daily routines. This energy-saving feature can lead to substantial cost savings on utility bills. Furthermore, the device incorporates an auto-changeover function that seamlessly switches between heating and cooling as needed, ensuring optimal comfort year-round.

The TH8110U also includes advanced energy-saving technologies like the Smart Response feature, which learns the heating and cooling cycles of the home and adjusts them to achieve the desired temperature at the right time. This proactive approach not only enhances comfort but also improves energy efficiency.

Additional characteristics include a filter change reminder, which notifies homeowners when it's time to replace or clean their HVAC filters, contributing to improved indoor air quality. The unit is designed for easy installation and user-friendly operation, making it suitable for both tech-savvy individuals and those who prefer simplicity.

Overall, the Honeywell TH8110U is a cutting-edge thermostat that combines modern technology with user-friendly features, providing homeowners with a reliable, efficient, and convenient way to manage their indoor climate. Its array of functionalities makes it a worthy investment for anyone looking to enhance their home's comfort while keeping energy consumption in check.