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General| Brand | Haier |
|---|---|
| Model | 1U68WEGFRA-C |
| Category | Air Conditioner |
| Language | English |
Explains the model nomenclature for the air conditioner unit.
Covers embedded wire checking, repair cautions, and post-repair inspections.
Explains the meaning and usage of icons within the service manual.
Details on voltage, capacity, input, dimensions, weight, and sound levels.
Lists ambient, defrosting, and discharging sensors and their purposes.
Illustrates refrigerant piping for both cooling and heating operations.
Defines the operational temperature limits for cooling and heating modes.
Lists and describes connectors on the outdoor control PCB.
Details compressor frequency control, speed adjustment, and fan operation.
Covers four-way valve control and various protection mechanisms.
Details on managing over-current and AC current protection for the compressor.
Protection against freezing and control of modification rate.
Resistance values for ambient, defrosting, and pipe sensors at various temperatures.
Resistance values for the discharging sensor at different temperatures.
Diagrams showing external dimensions and center of gravity of the outdoor unit.
Cautions for diagnosis, common problems, and their remedies.
Parameters for electronic appliances and a list of error codes.
Troubleshooting guide for thermistor and EEPROM related errors.
Diagnostic steps for indoor and outdoor DC fan motor issues.
Troubleshooting IPM protection and compressor over-current.
Diagnosing communication faults and power supply issues.
Troubleshooting overheat protection and indoor/outdoor communication faults.
Diagnosing synchronism loss and high work-intense protection.
Graphs showing cooling capacity, power consumption, and pressure.
Charts for heating capacity, power consumption, and pressure.
Details on measuring and reporting sound pressure and power levels.
Circuit diagrams for the outdoor unit's control board.
Step-by-step guide to removing the outdoor unit's panels.
Instructions for removing the electrical box and fan motor.
Steps for removing the fan motor bracket and partition plate.
Procedures for removing the compressor and heat exchanger.
