Lennox iComfort Wi-Fi Setup Manual page 48

Table 10. Alert Codes and Troubleshooting
Alert PRIORITY
Code CONDITION
124 Critical
125 Critical
126 Critical
130 Moderate
131 Critical
face or IHarmony
Air handler, equip­
132 Critical
507343-01
APPLICABLE
SYSTEM
COMPONENTS
Thermostat, fur­
nace, air handler,
The thermostat has lost com­
outdoor unit,
munication with a system com­
equipment inter­
ponent for more than three min­
face or IHarmony
utes.
damper control
module
Thermostat, fur­
nace, air handler,
outdoor unit,
There is a hardware problem
on a system component con­
equipment inter­
trol.
face or IHarmony
damper control
module
Furnace air han­ There is an internal communi­
cation problem with a system
dler or outdoor
component.
unit
Equipment inter­
Air handler jumper is missing.
face module
Thermostat, fur­
nace, air handler,
outdoor unit,
System component control pa­
equipment inter­
rameters are corrupted.
damper control
module
ment interface
System component control
module or IHar­
software is corrupted.
mony damper
control module
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
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•
•
•
•
•
•
•
•
•
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TIONAL STATE AND TROU­
BLESHOOTING TIP
System component has lost com­
munication with the thermostat.
Check the wiring connections.
Ohm wires.
Cycle power.
This alert code stops all associat­
ed system operations and waits
for a heartbeat message from the
system component that is not
communicating.
There is a control hardware prob­
lem.
Replace the control if the problem
prevents operation and is persis­
tent.
Damper control module will re­
main in non-zone mode (all
dampers open) for five minutes
after priority condition no longer
exist.
There is an internal hardware
problem on the system compo­
nent control.
Typically the system component
control will reset itself.
Replace the system component
(device) control if the problem
prevents operation and is persis­
tent.
Configuration jumper missing on
equipment interface module.
NOTE: This is applicable in non-
communicating applications only).
Install the missing jumper.
Reconfigure the system.
Replace the system component
control if heating or cooling is not
available.
Recycle power.
If failure re-occurs, replace the
system component control.
HOW TO CLEAR
ALERT CODE
Automatically clears
after communication is
re-established with ap­
plicable system com­
ponent (device).
Automatically clears
300 seconds after the
issue no longer exists.
Automatically clears
300 seconds after the
issue no longer exists.
Automatically clears
after the missing or in­
correctly installed
jumper is installed or
corrected.
Will automatically clear
when system compo­
nent (device) passes
memory self-test or
system component
control is replaced.
Manual system power
reset is required to re­
cover from this alert
code.