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Tracy WilliamsAug 18, 2025
What to do if my Kaysun Air Conditioner shows voltage protection?
- KKathy JamesAug 18, 2025
If your Kaysun Air Conditioner displays a voltage protection error, make sure the voltage supply is within the correct range.
What to do if my Kaysun Air Conditioner shows voltage protection?
If your Kaysun Air Conditioner displays a voltage protection error, make sure the voltage supply is within the correct range.
What should I do if my Kaysun Air Conditioner is showing a low pressure protection?
If your Kaysun Air Conditioner is showing a low pressure protection error, check the refrigerant levels and inspect for leaks.
Why is my Kaysun Air Conditioner showing an indoor/outdoor units communication error?
If your Kaysun Air Conditioner shows an indoor/outdoor units communication error, verify the wiring connections between the indoor and outdoor units.
How to fix mode conflict on my Kaysun KAM4-80 DN5 Air Conditioner?
If your Kaysun Air Conditioner is experiencing a mode conflict, switch to a compatible mode for operation.
What to do if the indoor fan speed of my Kaysun KAM4-80 DN5 Air Conditioner is out of control?
If the indoor fan speed of your Kaysun Air Conditioner is out of control, inspect the fan and replace it if necessary.
What to do if the outdoor fan speed of my Kaysun Air Conditioner is out of control?
If the outdoor fan speed of your Kaysun Air Conditioner is out of control, inspect the outdoor fan and replace it if necessary.
What to do if my Kaysun KAM4-80 DN5 Air Conditioner shows an inverter compressor drive protection error?
If your Kaysun Air Conditioner displays an inverter compressor drive protection error, check the inverter compressor connections and troubleshoot.
What should I do if my Kaysun KAM4-80 DN5 has an open or short circuit of the T1 temperature sensor?
If your Kaysun Air Conditioner shows an open or short circuit of the T1 temperature sensor, check the T1 temperature sensor connections.
What should I do if my Kaysun KAM4-80 DN5 Air Conditioner has an open or short circuit of the T2 temperature sensor?
If your Kaysun Air Conditioner shows an open or short circuit of the T2 temperature sensor, check the T2 temperature sensor connections.
What should I do if my Kaysun KAM4-80 DN5 has an open or short circuit of the T3 temperature sensor?
If your Kaysun Air Conditioner shows an open or short circuit of the T3 temperature sensor, check the T3 temperature sensor connections.
Specifies torque values for tightening flare nuts during installation.
Guidance on selecting power cord specifications based on appliance rating.
Details maximum piping lengths and height differences for multi-split systems.
Covers essential steps like leak testing and evacuation for first-time installation.
Procedure for adding refrigerant to a system that has been running for many years.
Steps for re-installing an indoor unit after it has been repaired.
Steps for re-installing an outdoor unit after it has been repaired.
Defines abbreviations used for various temperature sensors and settings.
Specifies input voltage, frequency, and operating current limits for control components.
Explains the indicators and codes displayed on the outdoor unit's digital display.
Details the check switch functions and the information displayed by the unit.
Protection mechanism that delays compressor restart for three minutes.
Protects the compressor from overheating by limiting frequency based on discharge temperature.
Mechanism to protect the unit from damage due to low input voltage.
Limits compressor frequency if current exceeds a predefined limit for a set duration.
Initiates shutdown if communication between indoor and outdoor units is lost for 2 minutes.
Stops the compressor if the condenser coil temperature exceeds 65°C.
Prevents freezing by adjusting capacity demand based on coil temperatures.
Defines rules for compressor frequency and EXV operation during oil return cycles.
Lists error codes for indoor units, their display patterns, and corresponding failures.
Details error codes specific to the outdoor unit and their LED status indicators.
Provides diagnostic flowcharts for common indoor unit malfunctions like EEPROM and communication errors.
Offers troubleshooting guides for outdoor unit issues such as EEPROM, communication, and voltage protection.
General| Cooling Capacity (kW) | 8.0 |
|---|---|
| Heating Capacity (kW) | 9.0 |
| Refrigerant | R410A |
| Energy Efficiency Ratio (EER) | 3.2 |
| Coefficient of Performance (COP) | 3.6 |
| Power Supply | 220-240V, 50Hz |
| Air Flow | 1200 m3/h |
