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Table 16. Alert Codes and Troubleshooting
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.
Alert
Code
Priority
Condition
Applicable
System
Component(s)
Actual Displayed
Alert Text
Component or System Operational State and Troubleshooting Tip
How to clear alert
code
180
Critical
Smart Hub
Outdoor
Temperature Sensor
Problem
The thermostat has found a problem with a system component’s outdoor
temperature sensor. 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 installation instructions.
Replace sensors pack if necessary.
At the beginning of (any) configuration, furnace, air-handler control or
equipment interface 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.
Automatically clears
upon configuration, or
sensing normal values.
310
Moderate
Smart Hub
Discharge Air Temp
Sensor Problem
There is a discharge air temperature sensor issue.
Compare discharge temperature sensor (DATS) resistance to temperature
/ resistance charts in system component installation instruction.
Replace discharge air sensor if necessary.
Confirm there is no short or open circuits in the iComfort thermostat
connections to any of the other components in the communication system.
Issues with a DATS connected to Smart Hub not generate an alert code.
Automatically clears
30 seconds after
condition is detected
as recovered or after
system restart.
344
Critical
Furnace
Relay Y1 Stuck
Link Relay Problem. Relay
Y1
Failure
Possible Y1 relay failure.
All system operations will stop.
Automatically clears
five minutes after
Y1
input sensed OFF.
345
Critical
Thermostat
Relay O Failure
The
O
relay on the system component has failed. Either the pilot relay
contacts did not close or the relay coil did not energize.
Possible O relay / stage 1 failure.
Pilot relay contacts did not close or the relay coil did not energize.
Replace system component (device) control.
Automatically clears
after the fault recovered
following reset.
347
Critical
Thermostat
Relay Y1 Failure
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.
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.
Summary of Contents for iComfort E30
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