4- And 5-Ton Unit Inverter View; Outdoor Control 7-Segment Display Alert Codes, Dc Inverter And Outdoor Control Led Flash Codes; Outdoor Control 7-Segment Display Alert Codes And Inverter Led Flash Codes - Table - Lennox XP25-024-230-01 Installation And Service Procedure

Converter
Power Factor
Correction
Circuit
STATUS CODES:
Table 20. Outdoor Control 7-Segment Display Alert Codes, DC Inverter and Outdoor Control LED Flash Codes
NOTE - System fault and lockout codes take precedence over system status codes (cooling, heating operating percentages or defrost/dehumidification).
Only the latest active fault or lockout codes are displayed (if present). If no fault or lockout codes are active, then system status codes are displayed. Alert
codes are also displayed on the iComfort Wi-Fi
Inverter LED Flash Code
Alert
(number of flashes)
Code
Codes
Red LED
N/A N/A ON
N/A N/A ON
N/A N/A OFF
ERROR CODES:
Table 21. Outdoor Control 7-Segment Display Alert Codes and Inverter LED Flash Codes
NOTE - System fault and lockout codes take precedence over system status codes (cooling, heating operating percentages or defrost/dehumidification).
Only the latest active fault or lockout codes are displayed (if present). If no fault or lockout codes are active, then system status codes are displayed. Alert
codes are also displayed on the iComfort Wi-Fi
Inverter LED Flash Code
Alert
(number of flashes)
Code
Codes
Red LED
E 423 40 4 flashes
E 426 N/A N/A
E 427 21 2 flashes
Table 21. Outdoor Control 7-Segment Display Alert Codes and Inverter LED Flash Codes
NOTE - System fault and lockout codes take precedence over system status codes (cooling, heating operating percentages or defrost/dehumidification).
Only the latest active fault or lockout codes are displayed (if present). If no fault or lockout codes are active, then system status codes are displayed. Alert
codes are also displayed on the iComfort Wi-Fi
Intelligent Power Module
Figure 61. 4- and 5-Ton Unit Inverter
®
thermostat.
Priority
Green LED
OFF N/A
ON N/A
OFF N/A
®
thermostat.
Priority
Green LED
Moderate /
OFF
Critical
N/A Critical
Moderate /
1 flash
Critical
®
thermostat.
Page 80
Heat Sink
Communication Control
Possible Causes and Clearing Alarm
XC/XP 25-024 and -036 only: Indicates inverter is operating normally.
XC/XP 25-048 and -060 only: Indicates inverter is operating normally.
Indicates inverter is NOT energized.
Alarm Description
Control locks out after 10 strikes within an hour. To
The inverter has detec­
clear, disconnect power to outdoor unit and re­
ted a circuit problem
.
start.
After ten faults within one hour, control is locked
out, indicating poor system operation. Review his­
tory of alarms to resolve system setup. Check con­
denser fan motor, TXV, indoor unit blower motor,
Excessive inverter
over-charge, undercharge, or clogged refrigerant
alarms
filter.
To clear error, disconnect power to outdoor unit
and restart. Inverter alarms 12 to 14 and 53 do not
count towards this lock out condition.
The inverter has detected a DC peak fault condition. If condition (55A or high­
er) is detected, outdoor unit compressor and fan stop. Anti-short cycle is initi­
ated. If peak current (55A or higher) occurs 10 times within an hour, system is
locked out. Indicates high pressure, condenser fan failure, locked compressor
rotor or overcharge. To clear, disconnect power to outdoor unit and restart.
Possible Causes and Clearing Alarm
XP25