To Next PageTo Next PageWhat to do if the linear expansion valve mechanism is locked in Mitsubishi Electric Air Conditioner?
If the linear expansion valve mechanism is locked in your Mitsubishi Electric Air Conditioner, exchange the linear expansion valve.
How to fix operation circuit failure of the micro- processor in Mitsubishi Electric PKFY-P25VBM-ER1?
In case of operation circuit failure of the micro- processor of Mitsubishi Electric Air Conditioner, exchange the indoor controller board at drive circuit failure.
What to do if there is a wrong connection in Mitsubishi Electric PKFY-P25VBM-ER1 Air Conditioner?
If you suspect a wrong connection or contact failure with your Mitsubishi Electric Air Conditioner, disconnect the connector at the controller board and then check the continuity.
What to do if there is a short or breakage of the motor coil of the linear expansion valve in Mitsubishi Electric PKFY-P25VBM-ER1 Air Conditioner?
If there is a short or breakage of the motor coil of the linear expansion valve in your Mitsubishi Electric Air Conditioner, exchange the linear expansion valve.
What to do if the linear expansion valve (LEV) of Mitsubishi Electric Air Conditioner is not working?
If the linear expansion valve (LEV) is not working, disconnect the connector and measure the resistance valve with a tester. (Coil temperature 20). Check for 'Open or short' under 'Abnormal'. The normal resistance should be 150~10% for the following pairs: White-Red (1)-(5), Yellow-Brown (2)-(6), Orange-Red (3)-(5), and Blue-Brown (4)-(6).
What to do if the fan motor (MF) of Mitsubishi Electric Air Conditioner is not working?
If the fan motor (MF) is not working, measure the resistance between the terminals with a tester. (At the ambient temperature 20). For White-Black, a normal reading is 286. For Red-Black, a normal reading is 200. Check for 'Open or short' under 'Abnormal'.
What to do if the vane motor (MV) of Mitsubishi Electric PKFY-P25VBM-ER1 Air Conditioner is not working?
If the vane motor (MV) is not working, measure the resistance between the terminals with a tester. (At the ambient temperature 25). Check for 'Open or short' under 'Abnormal'. The normal resistance should be 400~7% between Red-Pink or White, Red-Blue, Red-Orange, and Red-Yellow.
What to do if the room temperature thermistor (TH21) of Mitsubishi Electric PKFY-P25VBM-ER1 is not working?
If the room temperature thermistor (TH21) is not working, disconnect the connector and measure the resistance with a tester at an ambient temperature of 10~30. A normal reading is 4.3k~9.6k. Check for 'Open or short' under 'Abnormal'.
What to do if my Mitsubishi Electric Air Conditioner has a connector contact failure?
If you suspect a connector contact failure in your Mitsubishi Electric Air Conditioner, disconnect the connector at the controller board and check the continuity.
General| Brand | Mitsubishi Electric |
|---|---|
| Model | PKFY-P25VBM-ER1 |
| Category | Air Conditioner |
| Language | English |
Identifies and describes the main parts of the indoor unit.
Details the functions and layout of the PAR-30MAA/PAR-31MAA wired remote controller.
Explains the display and buttons of the PAR-21MAA wired remote controller.
Describes the display and button functions of the wireless remote controller.
Lists electrical, physical, and performance specifications for various models.
Details the specifications for electrical components and their resistance values.
Provides methods and resistance values for checking key parts like thermistors and motors.
Explains the function of DIP switches for operational settings and troubleshooting.
Illustrates test points on the indoor controller and power boards for diagnostics.
Procedures for removing the lower unit side and front panel.
Steps for removing the electrical box and indoor controller/power boards.
Instructions for removing the nozzle, fan motor, vane motor, and thermistors.
