Trane TVR Pro CO 4TVY0290H8000AA User Manual

77
2.12 xH0: Communication error
Digital display output
In the error code, 'x' is a placeholder for the compressor system (compressor and related electrical components), with 1
representing compressor system A and 2 representing compressor system B.
Description
 1H0 indicates a communication error between the main control chip and the compressor A inverter driver chip.
 2H0 indicates a communication error between the main control chip and the compressor B inverter driver chip.
 All units stop running.
 Error code is only displayed on the unit with the error.
Trigger / recover condition
 Trigger condition: Main control chip and inverter driver chip cannot communication for 2 minutes.
 Recover condition: Communication go back to normal.
 Reset method: Resume automatically.
Possible causes

Incorrect compressor inverter module address setting.
 Loosened communication wiring from the main PCB to
the inverter module.

Main PCB damaged.
 Compressor inverter module damaged.
Procedure
H0 error
Compressor inverter module address
setting is incorrect
Reset the compressor
inverter module address via
dial switch S7 on inverter
module
1
Communication wire from outdoor
main PCB CN26 to inverter module CN8/
CN9 is loosened
2
Reconnect the
communication wire
Both LED1 and LED2 on inverter module
are off when power on
3
No
No
Yes
Yes
Check the power supply
circuit
4
Yes
Replace the outdoor main PCB, is the
malfunction solved?
No
Normal
Yes
No
Replace the inverter module
Check the power supply for the
inverter module
4
.

Trane TVR Pro CO 4TVY0290H8000AA Specifications

General

Brand	Trane
Model	TVR Pro CO 4TVY0290H8000AA
Category	Air Conditioner
Language	English