Lennox iComfort S30 Installation And Setup Manual page 33

Table 1. Alert Codes and Troubleshooting
Applicable
Alert Priority
System
Code Condition
Components
S30, furnace, air
handler, outdoor
unit, equipment
124 Critical
interface or
IHarmony damper
control module
S30, furnace, air
handler, outdoor
unit, equipment
125 Critical
interface or
IHarmony damper
control module
Furnace air handler
126 Critical
or outdoor unit
Equipment
130 Moderate
interface module
S30, furnace, air
handler, outdoor
unit, equipment
131 Critical
interface or
IHarmony damper
control module
Air handler,
equipment
132 Critical interface module or
IHarmony damper
control module
Furnace, air
handler or
180 Critical
equipment
interface module
Critical alerts are displayed on the Home screen, in the Homeowner alert button, and in the Installer alert button. Minor and
moderate alerts are found only in the Installer alert button.
Alert Text Component or System Operational State and Troubleshooting Tip
" System component has lost communication with the thermostat.
" Check the wiring connections.
The thermostat has lost " Ohm wires.
communication with a
" Cycle power.
system component for
" Check voltage at component.
more than three minutes.
" This alert code stops all associated system operations and waits for a heartbeat
message from the system component that is not communicating.
" There is a control hardware problem.
There is a hardware prob­
" Replace the control if the problem prevents operation and is persistent.
lem on a system compo­
" Damper control module will remain in non-zone mode (all dampers open) for five
nent control.
minutes after priority condition no longer exist.
" There is an internal hardware problem on the system component control.
There is an internal com­
" Typically the system component control will reset itself.
munication problem with a
" Replace the system component (device) control if the problem prevents operation
system component.
and is persistent.
" Configuration jumper missing on equipment interface module. NOTE: This is appli­
Air handler jumper is
cable in non-communicating applications only).
missing.
" Install the missing jumper.
System component con­
" Reconfigure the system.
trol parameters are cor­
" Replace the system component control if heating or cooling is not available.
rupted.
" Recycle power.
System component con­
trol software is corrupted. " If failure re-occurs, replace the system component control.
" In normal operation after system component control recognizes sensors, the alarm
will be sent if valid temperature reading is lost.
" Compare outdoor sensor resistance to temperature / resistance charts in unit instal­
The thermostat has found lation instructions.
a problem with a system
" Replace sensor pack if necessary.
component's outdoor tem­
" At the beginning of (any) configuration, furnace, air-handler control or equipment in­
perature sensor.
terface module will detect the presence of the sensor(s).
" If detected (reading in range), appropriate feature will be set as 'installed' and shown
in the 'About' screen.
33
How to clear alert code
Automatically clears after commu­
nication is re-established with ap­
plicable system component (de­
vice).
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 incorrectly installed
jumper is installed or corrected.
Will automatically clear when sys­
tem component (device) passes
memory self-test or system com­
ponent control is replaced.
Manual system power reset is re­
quired to recover from this alert
code.
Automatically clears upon configu­
ration, or sensing normal values.