To Next PageTo Next PageWhat to do if Mitsubishi Electric MUH-A09YV-E1 Air Conditioner indoor unit doesn't operate when EMERGENCY OPERATION switch is pressed?
First, check the connecting wire between the indoor unit and the remote. Then, refer to "Check of indoor electronic control P.C. board".
What to do if Mitsubishi Electric Air Conditioner unit doesn't operate normally in COOL or HEAT mode?
Refer to C "Check of R.V. coil" on page 25.
Why is the Mitsubishi Electric MUH-A09YV-E1 Air Conditioner outdoor unit OPERATION INDICATOR lamp flashing?
The OPERATION INDICATOR lamp might be flashing due to several reasons: * A serial signal issue between the indoor and outdoor units. * A problem with the room temperature or indoor coil thermistor. * A problem with the indoor fan motor. * A problem with the thermistor in the outdoor unit. * A problem with the outdoor control system. If this is the case, replace the deicer P.C. board. For the first three issues, check the room temperature thermistor and indoor coil thermistor. For the fourth issue, refer to E "Check of outdoor thermistor" on page 27. For the serial signal issue, refer to "Test point diagram and voltage".
What to do if Mitsubishi Electric MUH-A09YV-E1 Air Conditioner outdoor unit doesn't stop even if indoor unit stops?
Refer to B "Check of outdoor unit" on page 25.
What to do if Mitsubishi Electric MUH-A09YV-E1 indoor unit operates when the EMERGENCY OPERATION switch is pressed?
Refer to "Check of remote controller and receiver P.C. board".
Why Mitsubishi Electric MUH-A09YV-E1 outdoor unit operates only in Test Run operation?
Check the room temperature thermistor. Refer to "Test point diagram and voltage".
What to do if Mitsubishi Electric Air Conditioner outdoor unit doesn't operate even in Test Run operation?
Refer to A "Check of outdoor unit" on page 24.
General| Cooling Capacity | 2.5 kW |
|---|---|
| Heating Capacity | 3.2 kW |
| Power Supply | 220-240V, 50Hz |
| Refrigerant | R32 |
| Energy Efficiency Class (Cooling) | A+++ |
| Indoor Unit Noise Level (Low) | 19 dB(A) |
| Outdoor Unit Dimensions (HxWxD) | 550 x 285 mm |
Identifies and describes the components of the outdoor unit.
Lists and describes the accessories provided with the outdoor unit.
Presents graphical data showing capacity and input variations based on temperature conditions.
Graphs of outdoor low pressure and unit current vs. ambient conditions during cooling.
Outdoor unit current curves for different ambient temperatures during heating operation.
Detailed tables of performance data for cooling and heating operations.
Details high pressure protection and defrosting logic during heating operation.
Explains operation modes and control logic for the "I FEEL CONTROL" feature.
Describes how to manually initiate defrost mode for servicing purposes.
Explains how to modify defrost interval time and start temperature settings.
Important safety and handling precautions before performing troubleshooting procedures.
Flowchart and error code guide for diagnosing unit malfunctions.
Resistance values and checks for key components to identify faults.
Flowcharts for diagnosing compressor and fan motor operational failures.
Troubleshooting steps for incorrect mode operation, focusing on R.V. coil issues.
Procedure to check mis-wiring and serial signal errors causing unit non-operation.
Diagnostic steps for abnormal thermistors in the outdoor unit.
Step-by-step guide to remove the outdoor unit's outer casing.
Instructions for safely disconnecting and removing the deicer control board.
Procedure for disassembling the fan motor and its propeller.
Steps for safely recovering refrigerant and removing the compressor unit.
Lists structural components of the outdoor unit with part numbers and quantities.
Lists electrical and functional parts of the outdoor unit with part numbers and quantities.
Lists available accessories for the outdoor unit.
