Lennox iComfort S30 Installation And Setup Manual page 38

Table 1. Alert Codes and Troubleshooting
Applicable
Alert Priority
System
Code Condition
Components
Furnace, air
313 Minor handler and
outdoor unit
330 Critical
331
344 Critical Furnace
Air handler,
equipment
345 Critical
interface module or
heat pump
346 Critical Air handler
Furnace, air
handler or
347 Critical
equipment
interface module
Furnace or air
348 Critical
handler
349 Critical Furnace
350 Critical Air handler
351 Critical Air handler
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
" This is a Warning Only alert code.
The indoor and outdoor
" Check for proper system component configuring in installation instructions.
unit capacities do not
match.
" The system will operate, but might not meet efficiency and capacity parameters.
"
Link relay problem
RSBus communication
"
link problem
" Possible Y1 relay failure.
Relay Y1 Failure
" All system operations will stop.
" Possible O relay / stage 1 failure.
The O relay on the sys­
tem component has failed.
" Pilot relay contacts did not close or the relay coil did not energize.
Either the pilot relay con­
" Replace system component (device) control.
tacts did not close or the
relay coil did not energize. " If error is applicable to the XC/XP 25, the outdoor control will need to be replaced.
" Configuration link not cut on air handler control.
The heat pump configura­
" Cut O to R.
tion link not cut on the air
" This is only applicable with non-communicating heat pump with communicating in­
handler control.
door unit.
The Y1 relay on the appli­
" System operation will stop.
cable system component
" Possible Y1 relay / stage 1 failure.
has failed. Either the pilot
relay contacts did not " Pilot relay contacts did not close or the relay coil did not energize;
close or the relay coil did
" There is no input back to the applicable system component control.
not energize.
The Y2 relay on the appli­
" Possible Y2 relay / stage 2 failure.
cable system component
has failed. Either the pilot
" Furnace pilot relay contacts did not close or the relay coil did not energize
relay contacts did not
" No input back to furnace or air handler control. .
close or the relay coil did
not energize.
" Configuration link R to O needs to be restored.
The O to R link on the fur­
" Repair cut link by hard-wiring the R to O terminals on the terminal strip.
nace needs to be re­
stored.
" Only applicable in non-communicating mode.
" Heat call with no configured or incorrectly configured electric heat.
The air-handler's electric
" Check for proper configuring under Configuring Electric Heat Stages in the air han­
heat is not configured or
dler installation instructions. IComfort MUST be removed from the system before
incorrectly configured.
configuring electric heat.
" Either the pilot relay contacts did not close or the relay coil in the electric heat section
did not energize.
There is an issue with the " Possible heat section / stage 1 failure.
air-handler's first stage
" Pilot relay contacts did not close, or the relay coil in the electric heat section did not
electric heat.
energize.
" Air handler will operate on HP first stage for reminder of the heat call.
38
How to clear alert code
Automatically clears after commis­
sioning is complete.
Automatically clears 300 seconds
after Y1 input sensed OFF.
Automatically clears after the fault
recovered following reset.
Automatically clears when the
system detects that the issue no
longer exists.
Automatically clears after reset
and Y1 input sensed.
Automatically clears when the
system detects that the issue no
longer exists.
Automatically clears when the
system detects that the issue no
longer exists.
Automatically clears after electri­
cal heat detection is successful.
Automatically clears after fault re­
covered.