Lennox iComfort S30 Installation And Setup Manual page 57

Table 1 Alert Codes and Troubleshooting
Applicable
Alert Priority
System
Code Condition
Component(s)
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
352 Critical Air handler
353 Critical Air handler
354 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.
Actual Displayed Alert
Component or System Operational State and Troubleshooting Tip
Text
The heat pump configuration link is not cut on the air handler control.
√ Configuration link not cut on air handler control.
HP Jumper Not Removed
√ Cut O to R.
√ This is only applicable with non-communicating heat pump with communi­
cating indoor unit.
The Y1 relay on the applicable system component has failed. Either the pilot
relay contacts did not close or the relay coil did not energize.
√ System operation will stop.
Relay Y1 Failure
√ Possible Y1 relay / stage 1 failure.
√ Pilot relay contacts did not close or the relay coil did not energize;
√ There is no input back to the applicable system component control.
The Y2 relay on the applicable system component has failed. Either the pilot
relay contacts did not close or the relay coil did not energize.
√ Possible Y2 relay / stage 2 failure.
Relay Y2 Failure
√ Furnace pilot relay contacts did not close or the relay coil did not energize
√ No input back to furnace or air handler control.
The O to R link on the furnace needs to be restored.
√ Configuration link R to O needs to be restored.
IFC Error Check Jumper
O to R
√ Repair cut link by hard-wiring the R to O terminals on the terminal strip.
√ Only applicable in non-communicating mode.
The air handler's electric heat is not configured or incorrectly configured.
√ Heat call with no configured or incorrectly configured electric heat.
Electric Heat Not
√ Check for proper configuring under Configuring Electric Heat Stages in the
Configured
air handler installation instructions. Smart Hub MUST be removed from the
system before configuring electric heat.
There is an issue with the air handler's first stage electric heat.
√ Either the pilot relay contacts did not close or the relay coil in the electric
Electric Heat Stage 1
heat section did not energize.
Problem
√ Possible heat section / stage 1 failure.
√ Air handler will operate on HP first stage for reminder of the heat call.
There is a issue with the air handler's second stage electric heat.
√ Either the pilot relay contacts did not close or the relay coil in the electric
Electric Heat Stage 2
heat section did not energize.
Problem
√ The air-handler will operate on first stage electric heat until the issue is re­
solved.
There is a issue with the air handler's third stage electric heat.
√ Either the pilot relay contacts did not close or the relay coil in the electric
Electric Heat Stage 3
heat section did not energize.
Problem
√ The air-handler will operate on first stage electric heat until the issue is re­
solved.
There is a issue with the air handler's fourth stage electric heat.
√ Either the pilot relay contacts did not close or the relay coil in the electric
Electric Heat Stage 4
heat section did not energize.
Problem
√ The air-handler will operate on first stage electric heat until the issue is re­
solved.
57
How to clear alert code
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.
Automatically clears after fault re­
covered.
Automatically clears after fault re­
covered.
Automatically clears after fault re­
covered.