Lennox icomfort Touch, Setup Manual

506566−01 09/10

Page 32

Bold

 text indicates a tab, button, or text display on the thermostat.

Table 5. Troubleshooting Tips

No.

Corrective Action / Comments

Possible Cause

Issue / Problem

4

A humidifier was added to the
system as non−communicating
equipment and the thermostat
does not provide the ability to
adjust the RH set point.

Humidification Control
Mode

 is set for "Display

only" which will not allow
the icomfort system to con-
trol the humidifier.

− In the installer program, select the 

equipment

 tab. Select

System 49W95

 from the device list using the up/down

arrows and press the 

edit

 button. Use up/down arrows to

select 

Humidification Control 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−com-

municating equipment

 screen under the thermostat

installer program in the 

setup

 tab.

5

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−communi-
cating unit during initial
system setup.

In the thermostat installer program select the 

setup

 tab

and follow 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 in-

structions then exit the system.

6

High Balance Point

 and 

Low

Balance Point

 are not listed as

a menu item to adjust the set-
point on the thermostat of the
heat pump system.

Balance Point Control

must be enabled to display
as the 

High Balance Point

and 

Low Balance Point

 in

the menu and provide the
ability for the installer to ad-
just the setpoint.

− In the installer program select the 

equipment

 tab, then

scroll down to system device to 

SYSTEM 49W95

 and

press 

edit

. 

Scroll down the menu item choices to 

Bal-

ance Point Control

 and press 

edit

. Select 

enable

 and

press 

save

. 

High Balance Point

 and 

Low Balance

Point

 are now listed; adjust the balance point settings

and press 

save

.

− If 

Balance Point Control

 is not shown as a menu item

choice, the system does not have/recognize an outdoor
sensor or the system is not a heat pump.

7

icomfort thermostat does not
show a choice for 

Dew Point

Control 

Humidification mode

(only 

Basic 

and 

Precision

choices).

Dew Point Control

 will

only be displayed if the
system has an outdoor
sensor.

− Add an outdoor sensor to the system and connect to the

outdoor sensor terminals on the indoor unit.

− icomfort system is not able to read the outdoor tempera-

ture sensor in the icomfort outdoor unit, check outdoor
sensor.

8

The icomfort does not display an
alert code message, but the fur-
nace or unit control displays a
diagnostic code.

The red 

Critical Alert

 icon

and homeowner 

alert

 tab

do not display non−critical
alerts.

Go to the installer program 

alert

 tab to view all alerts and

details about those alerts.

9

The icomfort thermostat does not
display the Model # and or Serial
# indoor or outdoor unit.

The icomfort control was
replaced with a replace-
ment control before the
icomfort system was initial-
ly setup or configured.

− Replacement icomfort controls do not have the Model #

or Serial # loaded in the control.

− The Model # and Serial # cannot be added to the control.
− System will still operate normally.

10

A non−communicating 2−stage
outdoor unit was added to the
system but the unit only runs in
2nd stage.

The "W915 2 Stage Compr"
clippable option link on the
furnace or air handler con-
trol must be cut when used
with a non−communicating
2−stage outdoor unit.

Cut the "W915 2 Stage Compr" option link on the furnace
or air handler control.

11

Transfer the Model #, Serial #
and system settings to a re-
placement control.

The icomfort system is ca-
pable of copying settings
from the previous configu-
ration to the new compat-
ible device (control) found.

Reconfigure the system using the installer program and
select the 

setup

 tab. The system will go through the 

sys-

tem discovery 

process. The thermostat will display 

miss-

ing devices

 (old control) and 

found compatible devices

(new control). Press the 

next

 button to accept the new

device and copy the settings. Thermostat will display 

Set-

tings were copied

 after successfully copying the informa-

tion to the new control. See section title "

Reconfiguring a

system

" in this manual.

12

Determine the actual Software
version of the thermostat or one
of the icomfort unit controls.

icomfort software is stored
in the control and can be
retrieved.

− In the installer setup program select the 

equipment

 tab

and select the unit or control from the system device list.

− Press the 

about

 button and the software version will be

displayed along with Model # and Serial #.

table continued on next page