Lennox icomfort Wi-Fi - Page 42

507343-01
Page 42
Table 10. Alert Codes and Troubleshooting
Critical alerts are displayed on the Home screen, in the Home
owner alert button, and in the Installer alert button. Minor and
moderate alerts are found only in the Installer alert button.
Alert
Code
PRIORITY
CONDITION
APPLICABLE
SYSTEM
COMPONENTS
ALERT TEXT
COMPONENT OR SYSTEM OPERA
TIONAL STATE AND TROU
BLESHOOTING TIP
HOW TO CLEAR
ALERT CODE
10 Critical
Thermostat, air
handler, furnace,
outdoor unit,
equipment inter
face and IHarmo
ny damper control
modules.
The thermostat has found an
unknown device on the system.
 The room thermostat when not in
configuration mode has detected
an unknown device.
 Typical the thermostat will send a
command to the unknown device
and place it in a soft disable state.
 The iComfort control with the soft
disable state will indicate so as
follows:
> On air handler, furnace and
outdoor controls, the state is
display by double horizontal
lines on seven-segment dis
play.
> On the damper control mod
ule, the green LED will blink 3
seconds on and 1 second off.
> On the equipment interface
module, the green LED will
blink 3 seconds on and 1 sec
ond off.
 ·Cycling power to the soft disable
controller may clear the condition.
If cycling power does not clear
the soft disable state then replace
control.
Clear alert code by re
configuring the sys
tem.
11 Critical
Thermostat
The thermostat cannot find a
previously installed system
component.
 ·Check all connections and cycle
system power.
 ·Press the setup tab, press start,
and press confirm.
 ·If problem persists, then check
all system components (devices)
connections to make sure they
are iComfort
®
-compatible.
If problem persists,
clear by reconfiguring
the system
12 Critical
Thermostat, fur
nace, equipment
interface module
or air handler
The thermostat cannot find an
iComfort
®
indoor unit.
 ·Thermostat did not find an indoor
unit. Make sure there is an iCom
fort
®
indoor unit on the system.
Check R, i+, i- and C connec
tions.
 ·Ohm wires and cycle power.
 ·Replace indoor unit control if
there is no response.
Automatically clears
when the system de
tects that the issue no
longer exists.
14 Critical
Thermostat
The thermostat found more
than one thermostat, indoor or
outdoor unit on the system.
 Check wiring and remove dupli
cate equipment.
 Reconfigure system.
Automatically clears
when the system de
tects that the issue no
longer exists.
18 Minor
Thermostat
The outside temperature is be
low the level where the heat
pump is programmed to heat
the home.
 The system will not use the heat
pump to warm your home.
 Outdoor temperature is below the
low balance point.
 Heat pump will not be used to
service a heating demand.
This is a notification
only alert code.