To Next PageTo Next PageHow to fix water leakage from Mitsubishi Electric PUHY-P950 Air Conditioner?
If you notice water leaking from your Mitsubishi Electric Air Conditioner, inspect the drainage lines for any clogs. Also, ensure that the unit was properly installed.
What to do if Mitsubishi Electric Air Conditioner discharge air temperature is abnormal?
If you observe an abnormal discharge air temperature in your Mitsubishi Electric Air Conditioner, inspect the refrigerant levels and ensure that the compressor is functioning properly.
How to troubleshoot abnormal high pressure in Mitsubishi Electric PUHY-P950 Air Conditioner?
If you notice abnormal high pressure in your Mitsubishi Electric Air Conditioner, check the system for blockages and ensure proper airflow.
What causes abnormal low pressure in Mitsubishi Electric PUHY-P950?
If you observe abnormal low pressure in your Mitsubishi Electric Air Conditioner, verify the refrigerant charge and check for any leaks.
How to fix heatsink overheat protection on Mitsubishi Electric Air Conditioner?
If the heatsink on your Mitsubishi Electric Air Conditioner is overheating, check the airflow around the heatsink and clean any dust build-up.
How to fix temperature sensor failure in Mitsubishi Electric PUHY-P950?
If the temperature sensor fails in your Mitsubishi Electric Air Conditioner, replace the malfunctioning temperature sensor.
What to do if drain pump fails in Mitsubishi Electric Air Conditioner?
If the drain pump fails in your Mitsubishi Electric Air Conditioner, check the drain pump for blockages and replace it if necessary.
How to troubleshoot RPM error or motor malfunction in Mitsubishi Electric PUHY-P950 Air Conditioner?
If you are experiencing an RPM error or motor malfunction with your Mitsubishi Electric Air Conditioner, inspect the motor and RPM sensors for faults.
What to do for drain pump failure or float switch trip in Mitsubishi Electric PUHY-P950?
If the drain pump fails or the float switch trips on your Mitsubishi Electric Air Conditioner, reset the float switch and check the drainage system.
How to fix IPM error in Mitsubishi Electric PUHY-P950 Air Conditioner?
If you encounter an IPM error with your Mitsubishi Electric Air Conditioner, inspect the inverter for faults and replace it as necessary.
General| Model | PUHY-P950 |
|---|---|
| Refrigerant | R410A |
| Series | P Series |
| Indoor Unit Dimensions (H x W x D) | Varies by model |
| Weight (Indoor Unit) | Varies by model |
Read safety precautions before installation. Avoid risks of injury or death from warnings and cautions.
Ensure proper installation, use specified cables, take anti-earthquake measures, and consult dealer for repairs.
Ventilate room during refrigerant leak. Avoid defeating safety features and use only recommended accessories.
Secure terminal block cover, use specified refrigerant type, and be cautious of high-voltage parts in the control box.
Do not use existing piping. Use clean, phosphorus deoxidized copper pipes free of dust, dirt, or oil.
Use exclusive tools for R410A. Avoid tools used with conventional refrigerants to prevent contamination.
Charge liquid refrigerant. Do not use charging cylinders. Exercise special care when handling R410A tools.
Avoid gas leak areas, food storage, unusual environments, and ensure proper ventilation.
Take measures against noise in hospitals and avoid installing on or over things that cannot get wet.
Properly ground the unit, do not put tension on power supply wires, and install an earth leakage breaker.
Use specified power supply wires and breakers. Do not spray water on the unit or immerse it.
Wear protective gloves when handling units. Exercise caution during transport and properly dispose of packing materials.
Turn on the unit 12 hours before test run. Do not operate switches with wet hands or touch refrigerant pipes.
Do not operate without panels and safety guards. Do not turn off power immediately after stopping. Do not operate without the air filter.
Check refrigerant type, system symptoms, and read safety precautions before commencing service.
Prepare necessary tools and materials, noting R410A compatibility and restrictions for certain tools.
Details on piping materials, radial thickness, flare processing, and brazing procedures with non-oxidized solder.
Methods for air tightness testing, vacuum drying, and refrigerant charging, emphasizing liquid phase charging.
Remedies for refrigerant leaks and comparison of characteristics between conventional and new refrigerants.
Information on refrigerating machine oil for HFC systems and the effects of contaminants on the refrigeration cycle.
Table of compatible indoor units for various outdoor units and standard/high COP combinations.
Maximum allowable lengths for M-NET transmission and remote controller lines, and control wiring types.
Details on switch settings for various units and M-NET address settings for system configuration.
Sample wiring diagrams and cautions for MA, ME, and combined remote controller systems.
Restrictions on pipe length, height difference, and total pipe length for different outdoor unit models.
Front views of outdoor units and refrigerant circuit diagrams for various models.
Description of the control box, high-voltage warning, and internal components like boards and filters.
Detailed diagrams of the outdoor unit's control board, M-NET board, INV board, and fan board.
Comparison of functions, specifications, and selection criteria for MA and ME remote controllers.
Procedures for group settings and interlocks with LOSSNAY units via ME and MA remote controllers.
Instructions on using the built-in temperature sensor on the remote controller and related function settings.
Detailed electrical wiring diagrams for outdoor units, including component symbols and model-specific connections.
Electrical wiring diagram for the transmission booster, illustrating connections for power and control.
Diagrams illustrating the refrigerant circuit for various outdoor unit models, showing key components.
Detailed explanation of principal parts, their symbols, usage, specifications, and check methods.
Functions and factory settings of outdoor unit dipswitches (SWU, SW1, SW2, SW3, SW4, SW5).
Explanation of control methods, startup sequence, initial control, bypass control, and compressor frequency control.
Flowcharts detailing indoor and outdoor unit operation modes for cooling, heating, dry, and fan operations.
Essential checks before a test run, including refrigerant leaks, cable connections, and power supply.
Step-by-step guide for performing a test run using the MA remote controller, including canceling the test.
Guidance on understanding refrigerant characteristics and adjusting the amount based on symptoms.
Description of normal symptoms that may occur during operation and should not be mistaken for faults.
Reference data for standard operating conditions, including temperatures, pressures, and refrigerant amounts.
A comprehensive list of error codes, their definitions, and the units affected.
Detailed causes, check methods, and remedies for specific error codes displayed on the remote controller.
Methods for investigating transmission wave shape, noise, and related errors for proper communication.
Diagnostic steps for key components like sensors, solenoid valves, fans, and LEV systems.
Procedures for identifying and repairing refrigerant leaks in various system sections.
Step-by-step instructions for safely removing and replacing compressor components.
Guide to interpreting LED error displays on the outdoor unit control board for diagnostics.
Explanation of how to read the 7-segment LED display, numerical values, and flag displays.
Information displayed on the monitor during initial unit setup, including software version and refrigerant type.
Explanation of the outdoor unit's clock function, error history storage, and time data reading.
Detailed tables correlating SW1 settings with LED displays for various operating conditions and data points.
