To Next PageTo Next PageWhat to do if temperatures of P.C. board temperature thermistor or compressor exceeds limits in Mitsubishi Electric SUZ-KA09NAH2.MX Air Conditioner?
If the temperature of the P.C. board temperature thermistor exceeds 72 to 85°C, it may cause the temperature of the P.C. board temperature thermistor or compressor to exceed limits. In this case, you should check the outdoor fan motor of your Mitsubishi Electric Air Conditioner.
What to do if discharge temperature thermistor exceeds temperature limits in Mitsubishi Electric SUZ-KA09NAH2.MX?
If the discharge temperature thermistor exceeds 116°C, the compressor will stop, causing the discharge temperature thermistor to exceed temperature limits. To resolve this, check the LEV (Linear Expansion Valve) in your Mitsubishi Electric Air Conditioner.
What to do if temperature of fin temperature thermistor exceeds limits in Mitsubishi Electric SUZ-KA09NAH2.MX?
If the temperature of the fin temperature thermistor on the heat sink exceeds the threshold, it can cause the temperature of fin temperature thermistor to exceed limits. To solve this, check the outdoor unit of your Mitsubishi Electric Air Conditioner.
What to do if there is overcurrent protection interruption in Mitsubishi Electric SUZ-KA09NAH2.MX Air Conditioner?
If large current flows into intelligent power module, it can cause overcurrent protection interruption. To address this, check the compressor of your Mitsubishi Electric Air Conditioner.
Why Mitsubishi Electric SUZ-KA09NAH2.MX outdoor unit does not operate?
If the outdoor unit of your Mitsubishi Electric Air Conditioner does not operate, it might be due to the overcurrent protection cut-out operating 3 consecutive times within 1 minute after the compressor starts. In this case, you should check the outdoor thermistors.
What to do if air trapped in the refrigerant circuit are detected in Mitsubishi Electric Air Conditioner?
If air trapped in the refrigerant circuit are detected based on the temperature sensed by the indoor and outdoor thermistors and the current of the compressor, check of outdoor refrigerant circuit of your Mitsubishi Electric Air Conditioner.
What to do if DC voltage of inverter cannot be detected normally in Mitsubishi Electric SUZ-KA09NAH2.MX?
If the DC voltage of inverter cannot be detected normally in your Mitsubishi Electric Air Conditioner, check the inverter.
General| Brand | Mitsubishi Electric |
|---|---|
| Model | SUZ-KA09NAH2.MX |
| Category | Air Conditioner |
| Language | English |
Controls the outdoor fan motor's operation relative to the compressor's start and stop cycles.
Details the operation of the 4-way reversing valve (R.V. coil) during cooling and heating modes.
Maps sensors to their corresponding actuators for system operation and protection.
Procedure to adjust the defrost finish temperature by modifying jumper settings.
Enables/disables pre-heat control to prevent compressor issues in low outside temperatures.
Important safety and preliminary checks before commencing troubleshooting procedures.
Lists error symptoms, LED codes, conditions, and remedies for common malfunctions.
Guide on using the self-diagnosis function to recall and reset error history.
Instructions for performing self-diagnosis using the wireless remote controller.
Provides resistance and voltage criteria for testing key components during troubleshooting.
Flowcharts for diagnosing issues with the inverter, compressor, and related components.
Procedure for checking the resistance of various outdoor thermistors for proper function.
Method for testing the R.V. coil for defects by checking voltage and resistance.
Steps to test the outdoor fan motor's resistance, voltage, and rotation for proper operation.
Procedure to verify power supply voltage and inverter P.C. board status for troubleshooting.
Testing the LEV coil for proper operation by checking for click sound and resistance.
Diagnostic steps for the inverter P.C. board, including fuse checks and LED indications.
Troubleshooting guide for identifying and correcting miswiring and serial signal communication errors.
Checks for proper operation of the defrost heater, including continuity and voltage checks.
Troubleshooting steps for issues related to the outdoor refrigerant circuit, including pump down.
Guidance on identifying and mitigating electromagnetic noise interference with TV and radio reception.
Diagrams and charts showing test points, voltages, and thermistor resistance characteristics.
Instructions for setting various unit functions using the remote controller interface.
Details on accessing and selecting functions via the wired remote controller's service menu.
Steps for setting unit functions, including refrigerant addresses and specific mode configurations.
Step-by-step guide for disassembling the outdoor unit cabinet and panels.
Instructions for safely removing the inverter assembly and its associated P.C. board.
Procedure for removing the 4-way reversing valve (R.V. coil) from the unit.
Steps for removing various temperature sensors from their holders.
