INSTEON 2441ZTH User manual

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INSTEON®Wireless Thermostat
Owner Manual (#2441ZTH)

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About INSTEON Wireless Thermostat 3
INSTEON Wireless Thermostat – Features and Benefits 3
What’s in the Box? 3
INSTEON Wireless Thermostat Button Overview 4
INSTEON Wireless Thermostat Operation and Programming 5
Mode Button Operation 5
Energy Button Operation 6
Set Button Operation 7
Time/Sensor Button Operations 7
Program Button Operation 8
Fan and Hold Button Operations 9
Master Button Operation 10
Installation 10
Tools Needed 10
Preparation 10
Test Operation 11
Adding INSTEON Wireless Thermostat 11
INSTEON Programming 12
Add INSTEON Wireless Thermostat as a Controller 12
Remove INSTEON Wireless Thermostat as a Controller 13
User Setup Mode Overview 15
User Setup Mode 17
Temperature and Humidity Calibration Modes 18
Advanced 2-Stage Heating or Cooling Systems 19
Factory Reset 19
Specifications 20
Troubleshooting 22
Certification and Warranty 23
FCC and Industry Canada Compliance Statement 23
Limited Warranty 23
Limitations 23

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About INSTEON Wireless Thermostat
INSTEON Wireless Thermostat is a wireless, battery-operated, one-day programmable, INSTEON-
compatible thermostat. INSTEON Wireless Thermostat includes a humidity sensor and the ability to
communicate via RF to other INSTEON devices, including INSTEON Thermostat.
INSTEON Wireless Thermostat is not directly wired to the HVAC (Heating Ventilating and Air
Conditioning) system. If you want to control the HVAC system with INSTEON Wireless Thermostat, you
need to install at least one INSTEON Thermostat, then link INSTEON Wireless Thermostat as a wireless
controller of INSTEON Thermostat.
INSTEON Wireless Thermostat may also be used as a standalone INSTEON controller of other
INSTEON responders, activating scenes to turn on standalone heaters and fans based on room
temperature status.
Expand your INSTEON thermostat system by creating extra temperature zones in your home with
additional INSTEON Wireless Thermostats. Simply link each accessory INSTEON Wireless Thermostat to
your main INSTEON Thermostat and primary INSTEON Wireless Thermostat.
INSTEON Wireless Thermostat – Features and Benefits
•Installs in minutes in included tabletop stand (can also be wall-mounted)
•Can be added to scenes as a controller of INSTEON devices
•Saves energy and money on bills by remotely controlling and automating your thermostat
•Communicates wirelessly over radio frequency (RF)
•Can automatically control INSTEON devices and activate scenes when specified temperatures,
humidity levels or A/C or heating modes are detected
•Reports changes in thermostat modes, temperature, humidity, setpoints and fan to compatible
automation controllers or software
•Stores setup state in non-volatile memory so settings aren’t lost during battery changes or power
outages
•Two-year warranty
•Battery features:
oGoes into battery-saving standby mode one minute after last button press
oWakes up every minute to get current local temp info, which remains displayed in
standby
oLow battery warning beeper
oBroadcasts temperature or humidity changes to other connected devices
•When connected to always-on power supply:
oRemains awake always rather than going to standby
oParticipates in the INSTEON network as a message hopper
oGood for hard-to-reach locations where battery changes may be difficult
What’s in the Box?
•INSTEON Wireless Thermostat
•Quick Start Guide
•Tabletop stand (removable for wall-mounting)

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INSTEON Wireless Thermostat
The gray buttons
are under the
INSTEON
Thermostat door
Cool setpoint
Heat setpoint
Programmed
auto state
Humidity level
Time
Current
temperature
Temperature of remote
sensors or zone thermostats
position 1 and position 2
(up to 2)
Current
thermostat
mode:
Off, Auto,
Heat or Cool
INSTEON Wireless Thermostat Button Overview
1) Up/Down adjusts the temperature setpoint based on the current mode.
2) Mode allows the user to select the current operational mode of the HVAC system. It cycles
between Off, Heat, Cool, Auto and Programmed Auto.
3) Energy button is a quick option that saves energy (and money). When pressed, it sets back the
setpoint by a specified value. The default value is 4° from the current setting. To change the
default offset value to be a value other than 4°, you must use software, such as HouseLinc.
4) Hold overrides a pre-programmed mode.
5) Fan cycles between Auto and Always On – no indication given for “Auto Fan.”
6) Master makes this device the master temperature controller. Pressing and holding “Master” does
not alter any scene or screen settings. It just defines this INSTEON Wireless Thermostat as the
master temperature controller.
7) Time/Sensor button allows you to set the date and time. It cycles between hour, minute and time
format.
8) Program button allows you to setup the various pre-programmed user modes.
9) Set button adds and removes INSTEON Wireless Thermostat from scenes. It functions like the
Set button on other INSTEON devices.
2
1
4
5
6
7
8
9
3

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INSTEON Wireless Thermostat Operation and Programming
Mode Button Operation
Off Mode:
•No setpoints are shown
•Up/Down arrows do not do anything
Heat Mode:
•Only Heat setpoint is shown
•Up/Down arrows change Heat setpoint
Cool Mode:
•Only Cool setpoint is shown
•Up/Down arrows change Cool setpoint
Auto Mode:
•Both Cool and Heat setpoints are shown
•Up/Down arrows increase or decrease
values by the same amount
Programmed Auto Mode:
•The program mode is active as indicated by
the return annotation
•The time of day annotation is not displayed
in the other four modes (Off, Heat, Cool or
Auto)
•Both Cool and Heat setpoints are shown
•Up/Down arrows increase or decrease
values by the same amount
•When the thermostat moves to the next
time period, the setpoints will be adjusted
accordingly
Note:
•To adjust the gap between setpoints in Auto mode, press Mode to select Heat and set the
temperature you desire. Press Mode again to select Cool and set the temperature you desire.
Press Mode a third time to return to Auto; the settings will reflect your changes.
•If you set Heat and Cool to the same temperature, Heat will automatically move down 2° (the
minimum allowable gap).

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Energy Button Operation
The Energy button (designated with the leaf) is a quick, efficient energy-saving option. When you press
the Energy button, INSTEON Wireless Thermostat will adjust the Heat and Cool setpoints by a specified
value. The default value is 4° from the current setting, but can be changed via home control software
such as HouseLinc.
•When you exit Energy mode, it will revert back the 4° that was changed upon entry.
•The unit remains in Energy mode until the Energy button is pressed again.
•Up/Down arrows adjust the temperature setpoint based on the mode you are in.
From Off Mode:
•Energy button does nothing because the
system is off (at maximum energy savings
already)
•When “Energy” appears on the screen for
Auto, Cool and Heat Modes, the 4°
setback is engaged
From Heat Mode:
•Heat setback as specified
•Default setback is 4° less
•Notice that “Heating” is active on the left,
but not on the right since the setpoint is
lower that the actual temperature; the
element reads “Heat”
From Cool Mode:
•Cool setback as specified
•Default setback is 4° more
From Auto Mode:
•Both Heat and Cool setpoints changed as
specified
•Default setback is 4° more for Cooling and
4° less for Heating
•Notice that “Heating” is active on the left,
but not on the right since the setpoint is
lower that the actual temperature; the
element reads “Heat”

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From Programmed Auto Mode:
•Both Heat and Cool setpoints changed as
specified
•Default setback is 4°
•Notice that ”Heating” is active on the left,
but not on the right since the setpoint is
lower than the current temperature; the
element reads “Heat”
Note: Onscreen text displaying “Heat” changes to “Heating” and “Cool” changes to “Cooling” to indicate
HVAC system is active.
Set Button Operation
The Set button adds and removes INSTEON Thermostat from INSTEON scenes. It functions like the Set
button on other INSTEON devices.
Time/Sensor Button Operations
•The Time/Sensor button allows the user to set the time and clock format.
•It cycles among hour, minute and 12-/24-hour format. Note: When added to a Scene with INSTEON
Thermostat, INSTEON Wireless Thermostat automatically retrieves time settings.
•Up/Down arrows cycle through the available options.
•Go to the next Time/Sensor step by pressing Time/Sensor button again.
•Exit Time/Sensor setup by:
- Letting it time out after 4 minutes.
- Pressing Mode button
IMPORTANT! Once you have Added INSTEON Wireless Thermostat to a scene in INSTEON Thermostat
as a wireless temperature zone, the Time/Sensor button will allow you to change time format but time
information will be provided by the INSTEON Thermostat.
Note: Colors indicate element that is presently blinking during setting procedure.
First press of Time/Sensor:
Hours settings
•Up/Down arrows cycle through time in 1-
hour increments
•Pressing and holding Up/Down arrows
cycles through faster
Note: AM/PM changes automatically as needed.
Second press of Time/Sensor:
Minutes settings
•Up/Down arrows cycle through time in 1-
minute increments
•Pressing and holding Up/Down arrows
cycles through faster

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Third press of Time/Sensor:
Clock Format setting (12- or 24-Hour clock)
•Entire time line blinks
•Up/Down arrows cycle between 12- and 24-hour clock format
Note: AM/PM is not displayed when in 24-hour format.
Program Button Operation
•The Program button allows you to set up the various preprogrammed modes (Wake, Leave, Return
and Sleep).
•Go to the next step by pressing Program again.
•Exit Program setup by:
- Letting it time out after 4 minutes.
- Pressing Mode button
IMPORTANT! Once you have added INSTEON Wireless Thermostat to a scene in INSTEON Thermostat
as a wireless temperature zone, the Program button will no longer function. All program controls will be
performed on the INSTEON Thermostat.
Note: Text colors below indicate element that is presently blinking during setting procedure.
First press of Program:
Selects from available pre-program modes
Up/Down arrows cycle through Wake, Leave, Return and Sleep.
NOTE:
•Energy is not a part of this option
•Once a preprogrammed mode is selected, that item remains displayed throughout to
indicate the mode you are programming
•The current mode settings are displayed on the thermostat at each setup step
Second press of Program:
Start Time
•Up/Down arrows cycle through time in 15-minute increments. Note: when pressing the Down arrow, if
you come within 15 minutes of another preprogrammed mode time, you will not be able to increase
the time any further.
•Pressing and holding Up/Down arrows cycles through faster
Note: AM/PM changes automatically as needed.
Note: The start of one program mode is also the end of the previous program mode.

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Third press of Program:
Cool setpoint
•Up/Down arrows cycle through temperature
Fourth press of Program:
Heat setpoint
•Up/Down arrows cycle through temperature
Fifth press of Program:
Restarts the process to program another Mode/Day.
NOTE: The four modes come preprogrammed. The defaults are for all days:
Day
Modes Start Time Thermostat Mode
Heat
Setting
Cool
Setting
Wake 6:00AM Auto 65 75
Leave 8:30AM Auto 60 80
Return 5:00PM Auto 65 75
Sleep 11:00PM Auto 60 80
Note: To exit program setup mode, press Mode button once.
Fan and Hold Button Operations
Fan button operations
•The Fan button cycles between Auto and Always On.
•On the display, it simply indicates the text “Fan Always” when selected. There is no text for Auto.
Hold button operations
•The Hold button overrides a preprogrammed mode until Hold is turned off.

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IMPORTANT:
•While Hold is enabled, the next preprogrammed time that comes in Preprogrammed Auto Mode will
be ignored.
•While Hold is enabled, the preprogrammed time notations are not shown (i.e. Wake, Leave, Return
and Sleep).
•Hold can be remotely enabled/disabled from an INSTEON controller.
Master Button Operation
First press and hold:
Makes the local INSTEON Wireless Thermostat the master temperature controller
•To perform this, press and hold Master button for 3 seconds.
INSTEON Wireless Thermostat will beep once.
•Release.
Note: This is only valid if INSTEON Wireless Thermostat is linked to a INSTEON Thermostat.
Before pressing Master button:
•Notice that the left remote sensor is currently
the Master temperature controller
After pressing and holding Master button:
•Notice that the left remote sensor is no
longer the Master temperature controller
•The local INSTEON Wireless Thermostat is
now the Master controlling temperature
Note: If no INSTEON scene is programmed to an INSTEON Wireless Thermostat, pressing and holding
for 3 seconds will have no function.
Installation
CAUTIONS AND WARNINGS
Read and understand these instructions before installing and retain them for future reference.
Tools Needed
•INSTEON Wireless Thermostat will primarily be used as a tabletop thermostat
•You may also wall-mount INSTEON Wireless Thermostat using the slotted holes in the back cover1
Preparation
Follow these steps to properly install INSTEON Wireless Thermostat Thermostat. This thermostat will
mainly be used on a tabletop; wall mounting is optional.
1Screws and wall anchors not provided

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1) Make sure the location that you have selected for INSTEON Wireless Thermostat will not be affected
by daily sun movement or be in direct line of sight of a nearby HVAC vent or fan
2) Insert 2 AA batteries into INSTEON Wireless Thermostat
3) Close the INSTEON Wireless Thermostat cover
- After a few seconds INSTEON Wireless Thermostat will display ambient temperature and
humidity
- Mode will default to OFF
- Battery segment should show full with fresh batteries
- Time will become active and show 12:00PM (default)
4) Snap INSTEON Wireless Thermostat into the supplied tabletop stand or mount safely to a wall
Test Operation
INSTEON Wireless Thermostat does not directly control the HVAC system. Instead, INSTEON Wireless
Thermostat communicates via RF to INSTEON Thermostat which is directly in contact to the wiring
controlling the HVAC system.
Before adding INSTEON Wireless Thermostat as a responder or controller of INSTEON Thermostat,
perform the following tests; these will help familiarize you with INSTEON Wireless Thermostat. Keep in
mind you are not yet sending any communication to any INSTEON device. The INSTEON Wireless
Thermostat is presently a standalone device.
Note: While testing, the display will change but no HVAC operations will take place.
INSTEON Wireless Thermostat defaults 5 minutes delay between cycling the AC compressor.
Heating Mode Test
1) Press Mode button once to enter Heat mode
2) Tap the up or down arrow several times until setpoint is 1° above ambient
INSTEON Wireless Thermostat will call for Heat
“Heat” segment changes to “Heating”
No furnace activity will take place at this time, only display changes
3) Tap the Up or Down arrow until you reach a desirable heat temperature setpoint below ambient
Cooling Mode Test
1) Tap Mode button once again to enter Cool mode
2) Tap the Up or Down arrow several times until setpoint is 1° below ambient
INSTEON Wireless Thermostat will call for Cooling
“Cool” segment changes to “Cooling”
No A/C activity will take place at this time, only display changes
3) Tap the Up or Down arrow until you reach a desirable cool temperature setpoint
Auto Mode Test
1) Tap Mode button once to enter Auto mode
Note that your Heat and Cool setpoints were set in previous steps, unless you did not have a
minimum 2° gap between settings
2) Tap Up once to increase both Heat and Cool setpoints by 1°
3) Tap Down once to decrease both Heat and Cool setpoints by 1°
4) Tap Mode once to enter Programmed Auto mode
Indicated by Auto at bottom and relevant time of day to right of Heat/Cool set temps
5) Tap Mode twice to return to Off mode
Adding INSTEON Wireless Thermostat
INSTEON Wireless Thermostat can be added to INSTEON Thermostat to provide a portable thermostat
wherever you want temperature control. You can add up to 2 INSTEON Wireless Thermostats to a
INSTEON Thermostat.

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1) Press and hold Set button on INSTEON Wireless Thermostat
INSTEON Wireless Thermostat will beep and Set LED will blink green
2) Press and hold INSTEON Thermostat Set button
INSTEON Thermostat will beep,then double-beep
INSTEON Wireless Thermostat will double-beep
INSTEON Wireless Thermostat will show as Master Temperature Controller
3) Test the scene by pressing and holding the Master button on INSTEON Wireless Thermostat
•When properly added, pressing the Master button on the INSTEON Thermostat will illuminate the
“Master” segment on that same screen. Additionally, the present room temperature of the
INSTEON Wireless Thermostat will be displayed in position 1 as the small temperature segments
at top center of the display.
•A visual inspection of each display will reveal the Master status of each INSTEON Thermostat or
Zone Thermostat
Note: Only INSTEON Thermostat is directly wired to the HVAC system. If you plan on operating multiple
INSTEON Wireless Thermostats you must install at least one INSTEON Thermostat to control the HVAC.
INSTEON Programming
Add INSTEON Wireless Thermostat as a Controller
INSTEON Wireless Thermostat can be set up to control other INSTEON devices or trigger software
events when there is a change. The following INSTEON Thermostat changes can be configured as a
controller:
•Group 1 - Cooling mode change (scene control)
•Group 2 - Heating mode change (scene control)
•Group 3 - Dehumidification, high humidity setpoint (scene control)
•Group 4 - Humidification, low humidity setpoint (scene control)
•Group FE - Broadcast on any change (notification group for linked software controllers)1
NOTE: An INSTEON Wireless Thermostat can also be added to a scene as a controller to Groups 1 - 4.
When it is added as a controller of an INSTEON Thermostat, the setpoints between INSTEON Wireless
Thermostat and INSTEON Thermostat will always be matched. When it is not added as a controller to a
INSTEON Thermostat, the setpoints are local only. INSTEON Wireless Thermostat will send group
commands based on local temperature or humidity level and the setpoint shown on the display,
regardless of whether it added as a controller to an INSTEON Thermostat.
Note: Humidity levels are taken from the local device only; they are not shared or matched among
thermostats.
1) Press and hold INSTEON Wireless Thermostat Set button until it beeps.
INSTEON Thermostat will beep
INSTEON Thermostat Set LED will blink green
2) Tap Up or Down arrows to select from Groups 1-4 to add to a scene.
•Group 1 – Cooling mode change (default)
•Group 2 – Heating mode change
•Group 3 – Dehumidification, high humidity setpoint
•Group 4 – Humidification, low humidity setpoint
3) Adjust scene responder (such as OutletLinc with connected humidifier) to the state you want when
scene is activated (e.g., 50%, 25% or even off)2
4) Press and hold responder Set button until it double-beeps or its LED flashes
INSTEON Wireless Thermostat will double-beep upon completion
1Group FE is a hexadecimal representation of Group 254 and can only be configured using software
2If the responder is a multi-scene device such as a KeypadLinc, tap the scene button you wish to control until its LED is in the desired scene state (on or off)

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LED will turn off
5) Confirm scene addition was successful by raising or lowering INSTEON Wireless Thermostat
setpoint
After INSTEON Thermostat changes to active mode set in step 2 above, responder will toggle
between the scene on-level and off
6) To add more responders to the scene, repeat steps 1-5 for each additional responder
Upon entering Scene mode this screen will display for ~2 seconds
LCD display if Up button is tapped
LCD displays when using Up or Down buttons to select from among the 4 controller groups
Remove INSTEON Wireless Thermostat as a Controller
If you want to remove INSTEON Thermostat from a scene as a controller, follow instructions below.
Whenever possible, use software for managing scene memberships.
Note: If you choose to remove INSTEON Thermostat from use, it is important that you remove scene
memberships from all responders. Follow the instructions below for each responder of which INSTEON
Thermostat is a member.

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1) Press and hold INSTEON Wireless Thermostat Set button until it beeps
INSTEON Wireless Thermostat Set LED will blink green
INSTEON Wireless Thermostat will beep
2) Press and hold INSTEON Wireless Thermostat Set button again to put it in scene mode
INSTEON Wireless Thermostat Set LED will blink red
INSTEON Wireless Thermostat will beep
LCD display indicates the group from which you are removing the scene
3) Tap Up and Down arrows to select appropriate group to remove from:
•Group 1 - Cooling mode change, default
•Group 2 - Heating mode change
•Group 3 - Dehumidifiation, high humidity setpoint
•Group 4 - Humidification, low humidity setpoint
4) Press and hold responder Set button
INSTEON Wireless Thermostat will double-beep upon completion
LED will turn off
Upon entering Add a Scene mode
Upon entering Remove a Scene mode (defaults to Cooling mode)
LCD displays when using Up or Down buttons to select from among the 4 controller groups

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User Setup Mode Overview
IMPORTANT! Once you have added INSTEON Wireless Thermostat to INSTEON Thermostat as a
wireless temperature zone, the Program and Time/Sensor buttons will no longer perform their initial
functions. All program and time controls will be performed on the INSTEON Thermostat. To access the
Program and Time/Sensor buttons again, you must remove INSTEON Wireless Thermostat from
INSTEON Thermostat.
Program and Time/Sensor buttons can be used to wake INSTEON Wireless Thermostat up from its
battery-saving mode to retrieve any updates from INSTEON Thermostat.

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Press and hold Program button for 3 seconds or more to enter User Setup Mode:

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User Setup Mode
1) Press and hold Program button to access the following options:
•Press Mode to step between menu items (sub-mode number will appear on top of the screen).
oSub-mode 01: Display LED on-time select (default is 10 seconds)
oSub-mode 02: Humidity low setpoint (default is 30%)
oSub-mode 03: Humidity high setpoint (default is 99%)
oSub-mode 04: Temperature format select (default is Fahrenheit)
oSub-mode 05: Internal or External temperature sensor (default is Internal)
oSub-mode 06: Beep on button press (default is Off)
oSub-mode 07: Button lock (default is Off)
oSub-mode 08: Programming lock (default is Off)
oSub-mode 09: Activation delay (default is 5 minutes)
2) Press the Up or Down arrow to change a setting
•Sub-mode 01: LED backlight ON time (10–second default)
a. Tap up or Down arrow to step between OFF, 10 seconds, 60 seconds and ON
Note: Do not set to ON unless you are connected to a power supply or the batteries will
drain very rapidly.
•Sub-mode 02: Humidity low setpoint (humidification, 30% default)
a. Up arrow = Increase humidity % setpoint
b. Down arrow = Decrease humidity % setpoint
c. Range = 0 to 79%
•Sub-mode 03: Humidity high setpoint (dehumidification, 90% default)
a. Up arrow = Increase humidity % setpoint
b. Down arrow = Decrease humidity % setpoint
c. Range = 20 to 99%
•Sub- mode 04: Temperature format select (C or F, F default)
a. Up arrow = C
b. Down arrow = F
•Sub-mode 05: Internal or External temperature sensor (Internal default)
a. Up arrow = External
b. Down arrow = Internal
•Sub-mode 06: Beep on button press (enable/disable, OFF default)
a. Up arrow = ON

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b. Down arrow = OFF
3) When finished, press and hold Program button to exit
Temperature and Humidity Calibration Modes
Note: Use a calibrated temperature or humidity source when adjusting INSTEON Thermostat.
1) Press and hold the Program button
2) Tap Time/Sensor to enter Temperature Calibration Mode
3) Tap Mode to step among internal temperature calibration (I), humidity calibration and external
temperature calibration modes (E)
Internal Temperature Calibration
•Iappears on right side of screen
•The top left number (77 in example) is the current reading according to the temperature sensor
•The top right number (14 in example) is the current offset (represents 1.4)
•These numbers can change while this screen is displayed even though the primary temperature
does not change; they are floating point calculations.
1) Tap Up or Down arrows to adjust the displayed temperature to match the calibrated source
i. Each press results in a 1°F (0.5°C) change
ii. The calculation using example numbers below is 78 = 77 + 1.4
iii. The offset range is from –10 to +10 actual °s
Humidity Calibration Mode
1) Once in Setup Mode for temperature calibration (step 1 above), tap Mode button to step between
temperature calibration and humidity calibration
2) Press the Up or Down arrow to select the current humidity level
•The top left number (40 in example) is the current reading according to the humidity sensor
•The top right number (-92 in example) is the current offset (represents -9.2)
•These numbers can change while this screen is displayed even though the primary humidity level
does not change. they are floating point calculations
oEach press results in a 1% humidity change
oThe calculation using example numbers below is (31 = 40 – 9.2) and 42 = 40 + 1.7
oThe offset is from -10 to +10
3) Press the MODE button to calibrate the external temperature sensor or press Program to exit
calibration mode

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External Temperature Calibration
•Eappears on right side of screen
•If you are using a Waterproof Temperature Sensor, use this mode to calibrate its external
temperature readings
1) Tap Up or Down arrows to adjust the displayed temperature to match the calibrated source
i. Each press results in a 1°F (0.5°C) change
ii. The calculation using example numbers below is 78 = 77 + 1.4
iii. The offset range is from –10 to +10 actual °s
2) Press Program to exit calibration mode
Advanced 2-Stage Heating or Cooling Systems
INSTEON Wireless Thermostat does not have the ability to operate first or second stages of Heat or Cool
directly but can instruct INSTEON Thermostat to operate the HVAC. First and second stage of Heat or
Cool engages under the following conditions when INSTEON Thermostat is connected to the HVAC:
•INSTEON Thermostat setpoint is set at 5°or more below ambient in Cool mode and 5°or more
above ambient in Heat mode
- Heat mode setpoint is 80°, ambient is 72° = first and second stage engaged
- Cool mode setpoint is 78°, ambient is 84° = first and second stage engaged
•INSTEON Thermostat has been active in Heat or Cool for longer than 10 minutes and did not
reach setpoint
- Heat mode ran for 10 minutes and did not reach setpoint = second stage engaged
- Cool mode ran for 10 minutes and did not reach setpoint = second stage engaged
Note: It is possible for INSTEON Thermostat to occasionally engage and disengage second stage during
a single heating or cooling cycle as variables are met.
Factory Reset
If you want to reset INSTEON Thermostat to its factory default settings, follow instructions below.
Note: If you choose to reset INSTEON Thermostat to its factory default settings, it is important that you
remove scene memberships from all controllers. Otherwise, controllers will retry commands repetitively,

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creating network delays. Follow the instructions in Removing INSTEON Thermostat as an INSTEON
Responder above for each scene controller of which INSTEON Thermostat is a member.
Factory reset changes:
•INSTEON is reset (all scene memberships are removed)
•Day/time is changed to 12:00PM
•Programming times, temperatures and other settings are reset to their default values
Factory reset does not change:
•Temperature offset
•Humidity offset
Factory Reset
1) Open INSTEON Wireless Thermostat and remove a battery
2) Wait 10 seconds
3) While pressing and holding the Set button, reinsert the removed battery. Do not let go of Set button.
Device will blink all segments and emit a long beep for about 10 seconds
4) When blinking/beeping stops, release Set button
Device goes into factory reset for ~10 seconds and will perform a series of self tests
Device will return to normal operations and display screen returns to normal
5) If INSTEON Wireless Thermostat displays a two-digit error code instead of the ambient temperature,
remove batteries, wait a few seconds, then reinstall
If problem persists, call INSTEON Support Line at 800-762-7845
Factory Reset Option 2
1) Press and hold INSTEON Wireless Thermostat Set button until it beeps
INSTEON Wireless Thermostat will beep
INSTEON Wireless Thermostat Set LED will blink green
2) Press and hold INSTEON Wireless Thermostat Set button again until it beeps
INSTEON Wireless Thermostat will beep
INSTEON Wireless Thermostat Set LED will blink red
LCD display indicates the group you are removing a scene from (default is Cooling)
3) Double-tap Set button
4) Press and hold Set button again. Do not let go of Set button.
Device will blink all segments and emit a long beep
5) When blinking/beeping stops, release Set button
Device goes into factory reset for about 10 seconds and will perform a series of self tests
Device will return to normal operations and display screen returns to normal
6) If INSTEON Wireless Thermostat displays a two-digit error code instead of the ambient temperature,
remove batteries, wait a few seconds, then reinstall
If problem persists, call INSTEON Support Line at 800-762-7845
Specifications
General
Product name
INSTEON Wireless Thermostat
Brand/manufacturer
INSTEON
Manufacturer product number
2441ZTH US
2732-432 EU