Lennox International Inc G71MPP03 Homeowner Service Alert Codes8, Alert Codes and Troubleshooting

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Table 5. Alert Codes and Troubleshooting

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.

 

 

 

Alert

 

 

 

Code

Priority

Alert Text

Steps to clear

 

 

 

 

418

Moderate

(Outdoor Unit) There is a faulty

Faulty W output circuit.

 

 

cuit.

 

 

 

 

 

419

Critical

(Outdoor Unit) The

W output hardware fault count reached 5 strikes.

 

 

unit has reported more than 5 errors. As a re-

 

 

 

sult, the system has shutdown the outdoor unit.

 

 

 

 

 

420

Critical

(Air Handler) The heat pump defrost cycle has

Defrost cycle lasts longer than 20 minutes. Check heat pump operation. Cleared

 

 

taken more than 20 minutes to complete.

when W1 signal is removed. Applicable only in communicating mode with non−communicating heat

 

 

 

pump.

 

 

 

 

421

Critical

(Outdoor Unit) The

Voltage sensed on W output terminal when Y1 out is deactivated.

 

 

outdoor unit is not wired correctly.

 

 

 

 

 

700

Moderate

(Stat) The temperature sensor in the thermostat

Recalibrate thermostat to clear. Replace thermostat if needed.

 

 

is not working properly.

 

 

 

 

 

701

Moderate

(Stat) The thermostat is reading indoor tempera-

Recalibrate thermostat to clear; cool thermostat; adjust setpoint. Replace thermostat, if needed.

 

 

tures above the pre−programmed limit.

 

 

 

 

 

702

Moderate

(Stat) The thermostat is reading indoor tempera-

Recalibrate thermostat to clear; warm thermostat; adjust setpoint. Replace thermostat, if needed.

 

 

tures below the pre−programmed limit.

 

 

 

 

 

703

Moderate

(Stat) The humidity sensor in the thermostat is

Recalibrate thermostat to clear; adjust setpoint. Replace thermostat, if needed.

 

 

not working properly.

 

 

 

 

 

704

Moderate

(Stat) The thermostat is reading indoor humidity

Recalibrate thermostat to clear. Replace thermostat, if needed.

 

 

levels above the pre−programmed limit.

 

 

 

 

 

705

Moderate

(Stat) The thermostat is reading indoor humidity

Recalibrate thermostat to clear. Replace thermostat, if needed.

 

 

levels below the pre−programmed limit.

 

 

 

 

 

Ohm

 

The ohm reading in the system is either too

Ohm reading between i+ and i− anywhere on the RSBus with supply power off should be between 70

 

and 90 ohms. If above 90 ohms, check and repair wiring, splices or other wiring defects that may be

Check

 

high or too low.

 

causing the excessive resistance. If less than 70 ohms, check for shorted wires.

 

 

 

 

 

 

 

Homeowner Service Alert Codes8

Number

Value

Number

Value

Number

Value

Number

Value

Number

Value

 

 

 

 

 

 

 

 

 

 

3000

Filter 1

3002

Humidifier Pad

3004

Maintenance

4000

User WiFi state change, disable

4002

Image file download failed

 

 

 

 

 

 

 

 

 

 

3001

Filter 2

3003

UV Light

3005

PureAir Maintenance

4001

Firmware download failed

 

 

 

 

 

 

 

 

 

 

 

 

506920−01 09/12

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Image 54
Contents 2P0912**P506920-01 INSTALLER’S SYSTEM SETUP GUIDEicomfortt−Enabled Units CONTROLSSetting up typical icomfortt systems Table of ContentsPage Supports Outdoor Temperature Sensor optionFigure 1. icomfort by Lennoxt system Installation and Setup Dealer Number Change settingsFigure 3. Settings change tools Figure 4. EnteringCirculate fan ON time setting Table 1. System setting defaults and rangeFigure 5. View/edit time and date Set time and date09 39 am Figure 6. Set current time and dateFigure 7. Using the Add or Remove Non−communicating equipment HUMIDITY CONTROL TIPSred settings Add Non−Communicating Outdoor unitFigure 8. Add non−communicating device SystemSystem 5a 5bFigure 9. Add or remove non−communicating device HumidifierDehumidifier Figure 10. Add or remove non−communicating deviceSystem DehumidifierAdjust a setting screen communicating devices Figure 11. Adjust communicating device screensFigure 12. Accessing device to modify Figure 13. Modify device settingsG71MPP or SLP98 Furnace Note 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 Humidification and Dehumidification Modes HUMIDIFICATION modesDEHUMIDIFICATION modes Figure 18. Select tests to run screen Use the Tests / Diagnostics featuresFigure 17. Start testing screen Figure 19. Typical tests results screensFigure 20. Testing finished screen Equipment, Alerts, DiagnosticsSet up Equipment parameters Figure 21. Equipment parameters screenRun Diagnostics Figure 22. Edit equipment detailsFigure 23. Select device and run diagnostics View and clear Installer AlertsFigure 24. Selecting and viewing alerts Figure 25. Cleared alert confirmationView cleared alerts Figure 26. Cleared alerts screenSTART Figure 27. Wi−Fi setupSecure Connection Recommended HERERegistering the icomfort Wi-Fitthermostat Registration for online accessFigure 28. Change Networks Figure 30. icomfort Wi-FitRegistration screen Figure 31. PC Welcome Screen Welcome homeHow Do I Upload a Skin? 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 SSRLow Balance Point Heat Pump, Dual Fuel and Balance PointsHeat Pump Balance Points 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 HANDLERGas Heat Airflow Settings Table 3. Adjustable Parameters Table InstallerFURNACE Cooling Airflow Settings Heat Pump Airflow SettingsTable 3. Adjustable Parameters Table Installer 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 TroubleshootingPossible Cause Table 6. Troubleshooting TipsIssue / Problem 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 systemOptional Accessories Wiring for use with any icomfort by Lennoxt systemLVCS Ventilation Control System attached to the PUSHBUTTON Setting up typical systems TIPSTIPS Setting up typical systemsT PUMP DUAL FUEL TIPSTIPS Setting up typical systems TIPSTIPS Setting up typical systemsT PUMP UNITS TIPSTIPS icomfortt−Enabled Unit Table 7. Replacement ControlsREVISION HISTORY Replacement Kit Catalog No