Table 5. Alert Codes And Troubleshooting; Alert Codes - Lennox icomfort Wi-Fi Setup Manual

Table 5. Alert Codes and Troubleshooting

Alert
Priority Alert Text
Code
10 Critical (Stat) The thermostat has found an unknown
device on the system.
11 Critical (Stat) The thermostat cannot find a previously
installed unit.
12 Critical (Stat) The thermostat cannot find an icomfort−
enabled indoor unit.
14 Critical (Stat) The thermostat found more than one ther-
mostat, more than one indoor unit, or more than
one outdoor unit on the system.
18 Minor (Stat) The outside temperature is below the lev-
el where the heat pump is programmed to heat
the home. The system will not use the heat
pump to warm your home.
19 Minor (Stat) The outside temperature is higher than
the level where the furnace or electric heat is
programmed to work. The system will only use
the heat pump to warm your home.
29 Critical (Stat) The thermostat is reading an indoor tem-
perature that is higher than 99ºF. The thermo-
stat will not allow any heating operation to begin
until it senses a temperature lower than 99ºF.
30 Moderate (Stat) The thermostat is reading an indoor tem-
perature that is lower than 40ºF. The thermostat
will not allow any cooling operation to begin un-
til it senses a temperature higher than 40ºF.
31 Critical (Stat) The thermostat has lost communication
with the (furnace, air−handler or outdoor unit) for
more than 3 minutes.
32 Moderate (Stat) The (furnace, air−handler or outdoor unit)
is resetting itself.
Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer
alert button. Minor and Moderate alerts are found only in the Installer alert button.
Steps to clear
An unknown device is seen on the subnet in or outside of configuration mode. Clear by reconfiguring
the system. Press the setup tab, press start, and press confirm. If problem persists, then check all
DEVICE connections to make sure they are icomfort−compatible.
Check all connections and cycle system power. If problem persists, clear by reconfiguring the sys-
tem. Press the setup tab, press start, and press confirm. If problem persists, then check all DEVICE
connections to make sure they are icomfort−compatible.
Thermostat did not find an Indoor Unit. Make sure there is an icomfort indoor unit on the system.
Check R, i+, i− and C connections, ohm wires and cycle power. Replace indoor unit control board if
there is no response.
Check wiring and remove duplicate equipment. Reconfigure system.
Notification only − Outdoor Temp is below the Low Balance Point. Heat Pump will not be used to
service a heating demand.
Notification only − Outdoor Temp is above the High Balance Point. Indoor Unit (furnace or air−handler)
will not be used to service a heating demand.
Indoor temperature rose above 99ºF during a heating or cooling demand. Heating operation is not
allowed. Check to ensure that Heating Equipment is not stuck ON (reversing valve, etc.). Check the
accuracy of the thermostat temperature sensor. Select cooling system mode to cool the indoor
space.
Indoor Temp fell below 40ºF. Cooling operation is not allowed. Check to ensure that cooling equip-
ment is not stuck ON. Check accuracy of the thermostat temperature sensor. Select heating system
mode to heat the indoor space to above 40ºF.
[Indicated unit] has not communicated with thermostat for more than 3 minutes. Check connections.
Ohm wires. If fault persists, then cycle power. Fault clears after communication is restored.
[Indicated unit] is resetting itself. This event may occur during a power outage or power fluctuation in
the system. If persistent or if it coincides with the system operation then proceed with the following
steps. Check the power connections, check the amp draw at the transformer (the transformer maybe
overloaded) and check 24VAC voltage at the DEVICE. The alarm is only cleared by pressing the
clear button on the Installer Alerts Tab. If the fault persists after checking the connections, replace
the unit's control board.
icomfort Wi-Fit 7−Day Programmable Communicating Thermostat
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