Lennox International Inc iComfort Wifi Thermostat, XP2101, XC2105, XC1702 Troubleshooting Tips

Page 56

Table 6. Troubleshooting Tips

Bold text indicates a button, or text display on the thermostat.

 

 

 

 

No.

Issue / Problem

Possible Cause

Corrective Action / Comments

 

 

 

 

6

High Balance Point and Low Bal-

Balance Point Control must be

− In the installer program select the equipment button, then scroll

 

ance Point are not listed as a menu

enabled to display as the High

down to system device to System and press edit. Scroll down the

 

item to adjust the setpoint on the ther-

Balance Point and Low Bal-

menu item choices to Balance Point Control and press edit. Select

 

mostat of the heat pump system.

ance Point in the menu and pro-

enable and press save. High Balance Point and Low Balance

 

 

vide the ability for the installer to

Point are now listed; adjust the balance point settings and press

 

 

adjust the setpoint.

save.

 

 

 

− If Balance Point Control is not shown as a menu item choice, the

 

 

 

system is not connected to Wi−Fi or does not have/recognize an

 

 

 

outdoor sensor or the system is not a heat pump.

 

 

 

 

7

icomfort thermostat does not show a

Dew Point Control will only be

− Add an outdoor sensor to the system and connect to the outdoor

 

choice for Dew Point Control Hu-

displayed if the system has an

sensor terminals on the indoor unit.

 

midification mode (only Basic and

outdoor sensor.

− icomfort system is not able to read the outdoor temperature sensor in

 

Precision choices).

 

the icomfort outdoor unit, check outdoor sensor.

 

 

 

 

8

The icomfort does not display an alert

The red Critical Alert icon and

Go to the installer program alert button to view all alerts and details

 

code message, but the furnace or unit

homeowner alert button do not

about those alerts.

 

control displays a diagnostic code.

display non−critical alerts.

 

 

 

 

 

9

The icomfort thermostat does not dis-

The icomfort control was re-

− Replacement icomfort controls do not have the Model # or Serial #

 

play the Model # and or Serial # in-

placed with a replacement control

loaded in the control.

 

door or outdoor unit.

before the icomfort system was

− The Model # and Serial # cannot be added to the control.

 

 

initially setup or configured.

− System will still operate normally.

 

 

 

 

10

A non−communicating 2−stage out-

The tage Compr" clip-

Cut the tage Compr" option link on the furnace or air handler

 

door unit was added to the system

pable option link on the furnace

control.

 

but the unit only runs in 2nd stage.

or air handler control must be cut

 

 

 

when used with a non−communi-

 

 

 

cating 2−stage outdoor unit.

 

 

 

 

 

11

Transfer the Model #, Serial # and

The icomfort system is capable

Reconfigure the system using the installer program and select the

 

system settings to a replacement

of copying settings from the pre-

setup button. The system will go through the system discovery pro-

 

control.

vious configuration to the new

cess. The thermostat will display missing devices (old control) and

 

 

compatible device (control)

found compatible devices (new control). Press the next button to

 

 

found.

accept the new device and copy the settings. Thermostat will display

 

 

 

Settings were copied after successfully copying the information to the

 

 

 

new control. See section title Reconfiguring a system" in this manual.

 

 

 

 

 

 

 

table continued on next page

506920−01 09/12

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Contents INSTALLER’S SYSTEM SETUP GUIDE icomfortt−Enabled Units2P0912**P506920-01 CONTROLSPage Setting up typical icomfortt systemsTable of Contents Figure 1. icomfort by Lennoxt system SupportsOutdoor Temperature Sensor option Installation and Setup Change settings Figure 3. Settings change toolsDealer Number Figure 4. EnteringCirculate fan ON time setting Table 1. System setting defaults and rangeSet time and date 09 39 amFigure 5. View/edit time and date Figure 6. Set current time and dateFigure 7. Using the Add or Remove Non−communicating equipment HUMIDITY CONTROL TIPSAdd Non−Communicating Outdoor unit Figure 8. Add non−communicating devicered settings System5a 5b Figure 9. Add or remove non−communicating deviceSystem HumidifierFigure 10. Add or remove non−communicating device SystemDehumidifier DehumidifierAdjust a setting screen communicating devices Figure 11. Adjust communicating device screensG71MPP or SLP98 Furnace Note Figure 12. Accessing device to modifyFigure 13. Modify device settings Figure 14. Adjust a non−communicating device setting Figure 15. Adjust a non−communicating device setting Figure 16. Adjust dehumidification when not using Humiditrol or an auxiliary dehumidifier DEHUMIDIFICATION modes Humidification and Dehumidification ModesHUMIDIFICATION modes Use the Tests / Diagnostics features Figure 17. Start testing screenFigure 18. Select tests to run screen Figure 19. Typical tests results screensEquipment, Alerts, Diagnostics Set up Equipment parametersFigure 20. Testing finished screen Figure 21. Equipment parameters screenRun Diagnostics Figure 22. Edit equipment detailsFigure 23. Select device and run diagnostics View and clear Installer AlertsFigure 25. Cleared alert confirmation View cleared alertsFigure 24. Selecting and viewing alerts Figure 26. Cleared alerts screenFigure 27. Wi−Fi setup Secure Connection RecommendedSTART HEREFigure 28. Change Networks Registering the icomfort Wi-FitthermostatRegistration for online access Figure 30. icomfort Wi-FitRegistration screen Welcome home How Do I Upload a Skin?Figure 31. PC Welcome Screen Wi-FitTherAccess installer program from Home screen yes noReconfigure a system Figure 34. Re−configuration process2nd Stage Differential where applicable2 Smooth Setback Recovery SSR Rules for SSRHeat Pump, Dual Fuel and Balance Points Heat Pump Balance PointsLow Balance Point High Balance PointShut down HP Figure 36. Variable Capacity Operation Flow Chart Gas Heat Control ModeStaged operation Table 2. Variable Capacity Furnace OperationLoad−tracking Variable Capacity FAQs SLP98V only Table 3. Adjustable Parameters Table Installer Installer entryTable 3. Adjustable Parameters Table Installer Lock in 2nd stage HP by Outdoor TempTable 3. Adjustable Parameters Table Installer AIR HANDLERFURNACE Gas Heat Airflow SettingsTable 3. Adjustable Parameters Table Installer Table 3. Adjustable Parameters Table Installer Cooling Airflow SettingsHeat Pump Airflow Settings Other Parameters Table 3. Adjustable Parameters Table InstallerTable 4. Adjustable Parameters Table User Filter 1 Timer Table 5. Alert Codes and Troubleshooting Table 5. Alert Codes and Troubleshooting AlertTable 5. Alert Codes and Troubleshooting AlertTable 5. Alert Codes and Troubleshooting AlertTable 5. Alert Codes and Troubleshooting AlertTable 5. Alert Codes and Troubleshooting AlertTable 5. Alert Codes and Troubleshooting AlertTable 5. Alert Codes and Troubleshooting AlertTable 5. Alert Codes and Troubleshooting AlertHomeowner Service Alert Codes8 Table 5. Alert Codes and TroubleshootingTable 6. Troubleshooting Tips Issue / ProblemPossible Cause Corrective Action / CommentsTable 6. Troubleshooting Tips High Balance Point and Low BalTable 6. Troubleshooting Tips Determine the actual Software verTable 6. Troubleshooting Tips During the cooling mode the disWiring Diagrams icomfortt Communicating System WiringWiring Diagrams icomfort by Lennoxt AIR HANDLER AHCOptional Accessories Wiring for use with any icomfort by Lennoxt systemLVCS Ventilation Control System Optional Accessories Wiringfor use with any icomfort by Lennoxt system attached to the PUSHBUTTON Setting up typical systems TIPSTIPS TIPS Setting up typical systemsT PUMP DUAL FUELTIPS Setting up typical systems TIPSTIPS Setting up typical systemsT PUMP UNITS TIPSTIPS Table 7. Replacement Controls REVISION HISTORYicomfortt−Enabled Unit Replacement Kit Catalog No
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