To Next PageTo Next PageWhat to do if my Mitsubishi Electric MUCFH-18NV-E4 flashes 5 times?
If your Mitsubishi Electric Air Conditioner flashes 5 times, it indicates a problem with the outdoor power system. Check the inverter output and the compressor.
Why does my Mitsubishi Electric Air Conditioner flash 10 times?
If your Mitsubishi Electric Air Conditioner flashes 10 times, it indicates an outdoor refrigerant system error. Check the amount of gas, the outdoor control P.C. board, and the contact of LEV board connectors.
What does it mean when my Mitsubishi Electric MUCFH-18NV-E4 Air Conditioner flashes on and off?
If your Mitsubishi Electric Air Conditioner flashes on and off at 0.5-second intervals, it indicates indoor/outdoor unit mis-wiring. Refer to E "How to check mis-wiring and serial signal error (When outdoor unit doesn't work)" on page 49.
What does a 1-time flash mean on a Mitsubishi Electric MUCFH-18NV-E4 Air Conditioner?
If your Mitsubishi Electric Air Conditioner flashes once, it indicates a trouble of serial signal between the outdoor and indoor units. Refer to E "How to check mis-wiring and serial signal error (When outdoor unit doesn't work)" on page 49.
What does it mean when my Mitsubishi Electric MUCFH-18NV-E4 Air Conditioner flashes 2 times?
If your Mitsubishi Electric Air Conditioner flashes 2 times, it indicates a problem with the room temperature or indoor coil temperature thermistor of the indoor unit. Check the room temperature thermistor and indoor coil temperature thermistor. Refer to "Test point diagram and voltage" on page 52.
What does it mean when my Mitsubishi Electric Air Conditioner flashes 6 times?
If your Mitsubishi Electric Air Conditioner flashes 6 times, it indicates a problem with the outdoor thermistor of the outdoor unit. Refer to H "Check of outdoor thermistor".
What does it mean when my Mitsubishi Electric MUCFH-18NV-E4 Air Conditioner flashes 7 times?
If your Mitsubishi Electric Air Conditioner flashes 7 times, it indicates a problem with the control P.C. board of the outdoor unit. Check the outdoor control P.C. board.
What to do if Mitsubishi Electric MUCFH-18NV-E4 Air Conditioner indoor unit doesn't operate when pressing EMERGENCY OPERATION switch?
If the indoor unit of your Mitsubishi Electric Air Conditioner doesn't operate when the EMERGENCY OPERATION switch is pressed, you should check the indoor/outdoor connecting wire. Refer to C "Check of indoor electronic control P.C. board" on page 47.
Details the parts and functions of the indoor unit and its accessories.
Details the parts and functions of the outdoor unit and its accessories.
Details electrical and physical specifications for indoor and outdoor units.
Shows physical dimensions for indoor units and remote controller.
Illustrates outdoor unit dimensions and necessary installation clearances.
Shows the electrical schematic for the indoor unit.
Shows the electrical schematic for the outdoor unit.
Illustrates operational performance characteristics and measurement parameters.
Detailed cooling performance data tables for various conditions and voltages.
Detailed heating performance data tables for various conditions and voltages.
Explains remote controller features and indoor unit indicator lamp meanings.
Details operations for COOL, DRY, and HEAT modes within "I FEEL CONTROL".
Explains automatic vane movement and programming timer functions.
Covers forced defrosting and modifications to defrost settings.
Explains P.C. board changes and disabling auto restart.
Safety measures and a systematic guide for diagnosing unit issues.
Criteria and methods for checking main components like motors, thermistors, and coils.
Procedures for checking fan motor, remote control, and P.C. boards for faults.
Procedures for removing the electronic board, fan motor, and heat exchanger.
Procedures for disassembling the outdoor unit cabinet, deicer board, fan motor, and compressor.
Lists structural and electrical components for indoor units.
Lists structural and electrical components for outdoor units.
Lists optional accessories available for the units.
Information on optional air cleaning and deodorizing filters, including maintenance.
General| Brand | Mitsubishi Electric |
|---|---|
| Model | MUCFH-18NV-E4 |
| Category | Air Conditioner |
| Language | English |
