Lennox icomfort Wi-Fi - Page 68

507343-01
Page 68
HOMEOWNER SERVICE ALERT CODES
Number Value Number Value Number Value Number Value Number Value
3000 Filter 1 3002 Humidifier
Pad
3004 Maintenance 4000 User Wi-Fi state change,
disable
4002 Image file download
failed
3001 Filter 2 3003 UV Light 3005 PureAir Mainten
ance
4001 Firmware download failed
Table 11. Troubleshooting Tips
Bold text indicates a button, or text display on the thermostat.
No. Issue / Problem Possible Cause Corrective Action / Comments
1a
When the thermostat is first started
and is stuck on the splash screen.
Thermostat is possibility incor
rectly wired and cannot find an
iComfort
®
indoor unit.
- Stuck splash screen due to incorrect wiring will occur on thermo
stats with firmware version 2.00 or 2.02.
- Thermostat did not find an Indoor Unit. Make sure there is an
iComfort
®
indoor unit on the system. Check R, i+, i- and C connec
tions, ohm wires and cycle power. Replace indoor unit control
board if there is no response.
1b
When the thermostat is first started
and is stuck on a blank screen.
- Stuck splash screen due to incorrect wiring will occur on thermo
stats with firmware version 2.01.
- Thermostat did not find an Indoor Unit. Make sure there is an
iComfort
®
indoor unit on the system. Check R, i+, i- and C connec
tions, ohm wires and cycle power. Replace indoor unit control
board if there is no response.
1c
Screen turns blue and the follow
ing message appears “Thermo
stat is unable to establish com
munication to the indoor unit or
other devices. Probable cause
is a miss wire Please verify all
the wiring and connections and
restart the system“.
- Blue screen with notification text that could be due to incorrect
wiring will occur on thermostats with firmware version 2.10.
- Thermostat did not find an Indoor Unit. Make sure there is an
iComfort
®
indoor unit on the system. Check R, i+, i- and C connec
tions, ohm wires and cycle power. Replace indoor unit control
board if there is no response.
2
- No electric heat operation.
- The thermostat system setting
does not offer a emergency
heat choice on an HP system.
- The thermostat does not offer
any “heat” choice on an AC
system with air handler with
electric heat.
Electric heat was not manually
configured configured at the Air
Handler Control (AHC) before
theiComfort Wi-Fi
®
system dis
covery process at initial power-
up.
- Manually configure to discover the electric heat section(s) on the
air handling (see Page 74 or CBX32MV or CBX40UHV manual for
details).
- Re-setup the iComfort
®
system by selecting the setup button in
the Installer program and press start to begin system discovery;
then reconfigure the system.
3
Thermostat Displays System
Waiting message and the furnace
does respond to a heating de
mand (no red critical alert icon or
alert messages are displayed on
the thermostat).
The furnace is in “watchguard”
mode (moderate alert) and will
not display the red critical alert
icon nor be displayed in the
homeowner alert button.
- Go to the installer program alert button to view all alerts and de
tails about those alerts.
- If the furnace is in “watchguard” mode, the furnace can be reset
from the Home screen by setting the thermostat system settings
to off for 20 sec, then back to heat. Then initiate a new heat de
mand.
4
Outdoor temperature is not dis
played on the thermostat.
Outdoor Temp Display must be
enabled to display the outdoor
temperature on the home
screen.
On the home screen, press the right arrow
then press the display settings button. Click on outdoor temp dis
play button to toggle ON.
5
A humidifier was added to the
system as non-communicating
equipment and the thermostat
does not provide the ability to ad
just the RH set point.
Humidification Control Mode is
set for “Display only” which will
not allow the iComfort
®
system
to control the humidifier.
- In the installer program, select the equipment button. Select “Sys
tem” from the device list using the up/down arrows and press the
edit button. Use up/down arrows to select Humidification Con
trol Mode from the list. Select the desired humidifier control mode:
Basic, Precision, or Dew Point. (Basic is the most popular) and
press the save button. Follow the red instructions then exit the
system.
- If Humidification Control Mode is not offered as a menu item
choice, the Humidifier must be added to the iComfort
®
system
using the Add or Remove Non-communicating equipment
screen under the thermostat installer program in the setup button.
6
The non-communicating outdoor
unit is part of the system, but the
thermostat does not display the
outdoor unit.
The outdoor unit was not added
as a non-communicating unit
during initial system setup.
In the thermostat installer program select the setup button and fol
low the on screen instructions until you reach the Add or Remove
Non-communicating equipment screen; press yes. Select Outdoor
Unit Type from the menu and press the edit button. Select 1 Stage
AC Unit or 2 Stage AC Unit and press save. Follow the red instruc
tions then exit the system.
table continued on next page