Vertex Ducted Central Split Systems

Find out how to troubleshoot error codes for Vertex Ducted Central Split systems.

Error Code Table for Vertex Ducted Central Split Systems

This article provides an error code table for Vertex Ducted Central Split systems.

Indoor Unit Fault Table for Vertex Ducted Central Split Systems

This article provides an indoor unit fault table for Vertex Ducted Central Split systems.

Parameter Check Table for Vertex Ducted Central Split Systems

This article provides the parameter check table for Vertex Ducted Central Split systems.

ATL Error Code

This error code indicates over-temperature protection.

E1 & F0 Error Codes

These error codes indicate a communication failure between the indoor and outdoor units.

E2 Error Code

This error code indicates a T1 indoor unit sensor failure.

E3 Error Code

This error code indicates a T2 indoor unit sensor failure.

E4 Error Code

This error code indicates a R454b sensor failure.

E6 Error Code

This error code indicates a refrigerant leakage fault.

E7 Error Code

This error code indicates an indoor control board chip failure.

E8 Error Code

This error code indicates indoor fan protection.

E9 Error Code

This error code indicates a smart controller communication error.

F4 Error Code

This error code indicates a T4 outdoor ambient temperature sensor failure.

F5 Error Code

This error code indicates a T5 exhaust temperature sensor failure.

F6 Error Code

This error code indicates a T3 condenser temperature sensor failure.

F7 Error Code

This error code indicates a T7 temperature sensor failure.

F8 & HE Error Codes

These error codes indicate a T7 temperature sensor error in detecting condensation risks.

F9 Error Code

This error code indicates AC undervoltage and overvoltage protection.

FA & FB Error Codes

These error codes indicate the chip of the outdoor unit main board is faulty.

FC Error Code

This error code indicates an IPM module temperature fault.

FD Error Code

This error code indicates HLP pressure sensor failure.

FE & H8 Error Codes

These error codes indicate a T3 or T5 sensor disconnect error.

FF Error Code

This error code indicates a high-pressure switch disconnection.

H0 Error Code

This error code indicates a communication failure between the main control chip and IPM chip.

H2 & P1 Error Codes

These error codes indicate high-pressure switch protection.

H3 & PD Error Codes

These error codes indicate high pressure abnormal failure protection in Heating mode.

H5 & P2 Error Codes

These error codes indicate low pressure abnormal failure protection.

H6 & P4 Error Codes

These error codes indicate an exhaust temperature too high protection.

L0 & L1 Error Codes

These error codes indicate DC cable bus low or high voltage protection.

LA, LB, LC, LD, LE, & LF Codes

These codes are not error codes.

P3 Error Code

This error code indicates overcurrent protection of the primary or secondary side.

P5 Error Code

This error code indicates an outdoor coil temperature over-high protection in Cooling mode.

P6 Error Code

This error code indicates IPM module protection.

P7 Error Code

These error code indicates T2 freeze protection.

P8 & H4 Error Codes

These error codes indicate an IPM high temperature protection.

P9 Error Code

This error code indicates a DC fan malfunction.

PC & H7 Error Codes

These error codes indicate a wet operation malfunction.