Lennox icomfort Wi-Fi Setup Manual page 58

Table 6. Troubleshooting Tips
No. Issue / Problem
18 During the cooling mode the dis-
played air volume on the indoor con-
trol is substantially lower than ex-
pected.
19 The Indoor unit is not providing the
expected air volume according to the
cfm shown on the indoor unit control.
20 − No second stage cooling is pro-
vided on a icomfort outdoor unit.
− Space temperature is above second
stage differential and has run in first
stage a long time.
− No red Critical Alert icon or alert is
displayed in the homeowner alert
button.
21 No weather being displayed.
22 Unable to complete Wi−Fi router / in-
ternet connection
506920−01 09/12
Bold text indicates a button, or text display on the thermostat.
Possible Cause
The system may be following the
cooling ramping" profile or may
be in the dehumidification
mode".
− Indoor unit air volume settings
in the icomfort thermostat are
not correct.
− System is operating in the cool-
ing mode and following the
cooling ramping profile or dehu-
midification air volume.
The red Critical Alert icon and
homeowner alert button do not
display non−critical alerts.
icomfort Wi-Fit not communicat-
ing with router.
Refer to 507037−01 Wi−Fi Troubleshooting checklist for icomfort Wi−Fit thermostat.
Page 58
Corrective Action / Comments
− During the default cooling ramping profile the blower will run for 7.5
minutes at 82% of the cooling air volume. If the cooling ramping
profile" is selected, the system will ramp to 100% after 7.5 minutes.
− The dehumidification mode will run the system at 70% of the cooling
air volume which will be in addition to the air volume reduction pro-
vided during the ramping profile. During the dehumidification mode, a
d" will be displayed on the furnace or air handler control.
− In the installer program select the equipment button and choose the
furnace or air handler from the system devices list and press edit.
Verify/set the correct air volume for heating and cooling modes.
− If in the cooling mode check for cooling ramp mode or dehumidifica-
tion mode as in #18.
− Go to the installer program alert button to view all alerts and details
about those alerts.
− Look for alert code 401 (Compressor Long On Cycle) which indicates
compressor ran more than 18 hours continuous and will lock out 2nd
stage compressor.
− Cycle indoor power off and back on, alert code 401 will clear within a
few minutes.
Make sure Wi−Fi is enabled (see Page 24).