Lennox iComfort E30 Installation And Setup Manual page 37

Initial notification of critical alerts will pop up on the home screen and will be listed under notification menu. Minor and moderate alerts are found only under the notification menu.
Moderate alerts are not emailed to Homeowners. Dealers will get an email and code can be seen on thermostat under the installer notification section.
Applicable
Alert Priority
System
Code Condition
Component(s)
347 Critical Thermostat
Moderate
380 Smart Hub
/ Critical
Moderate
381 Smart Hub
/ Critical
382 Moderate Smart Hub
418 Moderate Smart Hub
419 Critical Smart Hub
Table 16. Alert Codes and Troubleshooting
Actual
Displayed Component or System Operational State and Troubleshooting Tip
Alert Text
• 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.
• Possible Y1 relay / stage 1 failure.
Relay Y1 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.
Automatically clears after reset and Y1 input sensed.
• Interlock relay failure (furnace or air handler modes only).
• Interlock relay is energized, but input is not sensed after three seconds.
Interlock Relay
• There will be no heating or cooling due to this alert code – moderate condition.
Failure
• De-energize interlock relay and energize after five minutes if demand is still present – critical condition.
Automatically clears after fault recovered.
• Interlock relay stuck (furnace or air handler modes only).
• Interlock relay continuously sensed (with relay off).
Interlock Relay
• There is no heating and cooling operation – moderation condition.
Stuck
• After 10 minutes if event still exist it will be escalated – critical condition.
Automatically clears 30 seconds after fault clears.
Relay W1 failure (furnace or air handler modes only). W1 relay is energized but input is not sensed after three seconds.
Relay W1 Failure
Automatically clears when W1 relay input is sensed.
• There is a faulty W output circuit.
• W terminal is energized while in cooling mode.
• Possible cause may be a stuck closed relay on the control, or something external to the control that is energizing W terminal when
it should not be energized.
W Output Hardware
• Disconnect any wiring from the W terminal.
Fault
• If 24VAC is still present on the terminal, then it is a stuck relay.
• If 24VAC disappears, then there is a need to check any of the wires hooked up to the W terminal.
Automatically clears after fault signal is removed.
• The W output has reported more than five errors.
• The system will shut down the outdoor unit.
• The W output (code E418) on the outdoor unit has reported more than five strikes.
W Output hardware
Fault Lockout • Disconnect thermostat wire from W and verify there is no 24VAC on the W.
• If 24VAC is present, replace the outdoor control.
Automatically clears after power recycled.
37