To Next PageTo Next PageWhat to do if the indoor fan motor of my Mitsubishi Electric MU-07NV - E1 isn't working?
If the indoor fan motor isn't working, try the following: First, disconnect connector CN211 and check connector CN121 2 - 3 to ensure a rotational frequency feedback signal of 1.5V or higher exists. Then, check the indoor fan motor itself and the indoor electronic control P.C. board. Finally, ensure the connector is securely reconnected.
General| Cooling Capacity | 2.0 kW |
|---|---|
| Heating Capacity | 2.5 kW |
| Energy Efficiency Ratio (EER) | 3.21 |
| Coefficient of Performance (COP) | 3.61 |
| Power Supply | 220-240 V, 50 Hz |
| Refrigerant | R410A |
| Weight (Indoor Unit) | 9 kg |
| Operating Temperature (Heating) | -15°C to 24°C |
| Type | Split-System |
Identifies and labels parts of the indoor unit, including filters, vanes, and controls.
Identifies and labels parts of the outdoor unit, including air inlet, piping, and outlet.
Provides detailed measurements and diagrams for the indoor unit's physical size and shape.
Shows physical measurements and installation space requirements for the outdoor unit.
Illustrates the electrical connections and component symbols for the indoor unit.
Shows the electrical wiring diagram and component symbols for the outdoor unit.
Diagram of the refrigerant circuit for MS-07/09NV models, showing key components.
Diagram of the refrigerant circuit for MS-12NV models, detailing components and flow.
Specifies voltage tolerance and recommended air flow settings for performance testing.
Details key parameters and instructions for measuring performance characteristics.
Explains basic operation of the remote controller and the 'I FEEL CONTROL' mode.
Details 'I FEEL CONTROL' logic, examples, and restart behavior after power interruption.
Describes how initial room temperature affects set temperature in 'I FEEL CONTROL'.
Explains the function of TOO WARM and TOO COOL buttons for temperature adjustment.
Details coil frost prevention and time control for the COOL mode of 'I FEEL CONTROL'.
Describes 'I FEEL CONTROL' DRY mode operation based on room temperature.
Covers FAN mode operation, fan motor control, and speed adjustment.
Explains vane motor drive, angle control, and auto vane operation modes.
Details vane positioning procedures and the automatic vane angle determination.
Describes swing mode, dew prevention function, and sleep mode operation.
Instructions for setting ON/OFF timers and canceling programmed timer operations.
Explains how to shorten timer operation intervals for service purposes.
Procedure for modifying the remote controller PCB for individual unit operation.
Important safety and procedural notes to follow before and during troubleshooting.
Steps for diagnosing issues and resetting the remote controller.
Guides diagnosis of unit malfunctions based on operating indicator symptoms.
Lists symptoms, detection methods, and check points for common unit problems.
Provides resistance and voltage criteria for testing key unit components.
Specific steps to diagnose and resolve issues with the indoor fan motor.
Diagnoses problems related to the indoor unit's signal receiver P.C. board.
Guides troubleshooting for the main indoor electronic control P.C. board.
Troubleshooting steps for issues with compressor and outdoor fan operation.
Step-by-step guide with photos for removing the front panel of the indoor unit.
Instructions for safely removing the electronic and display P.C. boards.
Procedure for removing the electrical box and the vane motor assembly.
Steps to remove the indoor fan motor and the line flow fan.
Guide to removing the outdoor unit cabinet and the fan motor assembly.
Detailed steps for safely removing the compressor from the outdoor unit.
Instructions for removing the outdoor unit cabinet and its electrical components.
Steps for removing the outdoor fan motor and the compressor.
List of structural components for the indoor unit with part numbers.
List of parts related to the indoor unit's heat exchanger.
Catalog of electrical components used in the indoor unit.
List of structural components for the MU-07/09NV outdoor unit.
Catalog of functional and electrical parts for MU-07/09NV outdoor units.
List of structural components for the MU-12NV outdoor unit.
List of structural components for the MS-18/24NV indoor units.
Parts list for the heat exchanger components of the indoor unit.
Catalog of electrical parts used in the MS-18/24NV indoor units.
List of structural components for the MU-18/24NV outdoor units.
Lists the remote controller and its holder as optional accessories.
Details optional refrigerant pipe kits, lengths, sizes, and charge requirements.
Information on the air cleaning filter, its life, maintenance, and part number.
Details about the deodorizing filter, its cleaning, replacement, and part number.
