Lennox iComfort Wi-Fi Setup Manual page 42

Table 10. Alert Codes and Troubleshooting
Alert PRIORITY
Code CONDITION
10 Critical
ny damper control
11 Critical
12 Critical
14 Critical
18 Minor
507343-01
APPLICABLE
SYSTEM
COMPONENTS
Thermostat, air
handler, furnace,
outdoor unit,
The thermostat has found an
equipment inter­
unknown device on the system.
face and IHarmo­
modules.
The thermostat cannot find a
previously installed system
Thermostat
component.
Thermostat, fur­
nace, equipment The thermostat cannot find an
®
iComfort
interface module
or air handler
The thermostat found more
than one thermostat, indoor or
Thermostat
outdoor unit on the system.
The outside temperature is be­
low the level where the heat
Thermostat
pump is programmed to heat
the home.
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.
COMPONENT OR SYSTEM OPERA­
ALERT TEXT
•
•
•
•
•
•
•
•
indoor unit.
•
•
•
•
•
•
•
Page 42
TIONAL STATE AND TROU­
BLESHOOTING TIP
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.
·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.
·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.
Check wiring and remove dupli­
cate equipment.
Reconfigure system.
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.
HOW TO CLEAR
ALERT CODE
Clear alert code by re­
configuring the sys­
tem.
If problem persists,
clear by reconfiguring
the system
Automatically clears
when the system de­
tects that the issue no
longer exists.
Automatically clears
when the system de­
tects that the issue no
longer exists.
This is a notification
only alert code.