To Next PageTo Next PageHow to fix a reoccurring trouble with Mitsubishi Electric PUHZ-P100VHA4?
If the trouble with your Mitsubishi Electric Air Conditioner is reoccurring, you should assess the issue and take corrective action by referring to the “11-4. Self-diagnosis action table”.
What to do if the trouble with Mitsubishi Electric PUHZ-P100VHA4 is not reoccurring and is logged?
If the trouble with your Mitsubishi Electric Air Conditioner is not reoccurring but is logged, consider temporary defects such as the operation of protection devices in the refrigerant circuit (including the compressor), poor wiring connections, or noise. To address this, re-check the symptom, examine the installation environment, check the refrigerant amount, note the weather conditions when the trouble occurred, and inspect wiring. After servicing, reset the error code logs and restart the unit.
What to do if the trouble with Mitsubishi Electric PUHZ-P100VHA4 is not reoccurring and is not logged?
If the issue with your Mitsubishi Electric Air Conditioner is not reoccurring and is not logged, re-check the abnormal symptom. Conduct troubleshooting to determine the cause of the problem according to “11-5. Troubleshooting of problems”. If the cause cannot be determined, continue to operate the unit for the time being.
General| Series | PUHZ |
|---|---|
| Cooling Capacity (kW) | 10.0 |
| Heating Capacity (kW) | 11.2 |
| Refrigerant | R410A |
| Noise Level (Outdoor Unit) | 52 dB(A) |
Essential safety guidelines and precautions for handling the equipment and refrigerant.
Specifies the required thickness of refrigerant piping for R410A due to higher working pressure.
Details on specific flare cutting dimensions and flare nuts for R410A to ensure airtightness.
Table indicating which conventional tools can be used with R410A refrigerant.
Details on the amount of refrigerant (R410A) to be refilled based on piping length.
Technical data for compressors, including winding resistance.
Curves showing octave band sound pressure levels for noise assessment.
Standard operating data for various models under different conditions.
Specifies minimum free space, service space, and foundation bolt requirements for units.
Details on piping and wiring directions and knockout hole configurations.
Specifies wire sizes, circuit ratings, and power supply details for units.
Guidelines for separate power supply configurations for indoor and outdoor units.
Details on connecting cables, including cross-section, number of wires, and polarity.
Instructions and precautions for M-NET transmission wiring and grounding.
Procedure for safely collecting refrigerant before servicing or disposal.
Steps for initiating and concluding test runs using remote controllers.
General guidance on identifying and resolving operational issues based on error codes and test run checks.
Instructions for performing self-diagnosis and checking remote controllers using different methods.
How to set various unit functions using the remote controller.
Step-by-step guide for selecting functions via wired remote controller.
Step-by-step guide for selecting functions via wireless remote controller.
Explanation of function buttons and their operations on the PAR-31MAA remote controller.
How to use the smooth maintenance function to view operational data.
Steps for entering and operating the maintenance mode for data checks.
Guide for checking operation conditions and diagnosing issues using temperature data.
Instructions on using the remote controller to monitor operational data and error history.
Comprehensive list of request codes and their corresponding data descriptions.
Instructions for removing the outer service panel and top panel of the unit.
Step-by-step guide for safely removing the fan motor assembly.
Procedure for removing the control box containing the circuit board.
Detailed steps for removing various thermistor sensors from the unit.
Procedures for removing the 4-way valve coil and the linear expansion valve (LEV) coil.
Procedures for removing bypass valve, high pressure switch, and reactor.
Detailed steps for safely removing the compressor motor.
Steps for safely removing the accumulator from the unit.
