To Next PageTo Next PageWhat to do if my Mitsubishi Electric MCFH-18NV-WH 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 MCFH-18NV-WH 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 MCFH-18NV-WH 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 MCFH-18NV-WH 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 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 MCFH-18NV-WH 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 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 MCFH-18NV-WH 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.
General| Brand | Mitsubishi Electric |
|---|---|
| Model | MCFH-18NV-WH |
| Category | Air Conditioner |
| Language | English |
Details modifications and updates to the air conditioning system.
Identifies and describes the components of indoor, outdoor units, and remote controller.
Provides detailed technical data and operational parameters for all models.
Presents sound pressure levels across different frequencies for various operating speeds.
Shows physical dimensions and installation clearances for indoor and outdoor units.
Illustrates the electrical connections for indoor and outdoor units across models.
Depicts the refrigerant flow and components for different unit configurations.
Charts showing cooling and heating performance based on operating conditions.
Explains remote controller functions, operating modes, and special controls.
Outlines specific functions for maintenance and service adjustments like defrost settings.
Provides guidance for diagnosing and resolving operational issues with check tables.
Step-by-step procedures for safely dismantling indoor and outdoor units.
Comprehensive lists of indoor, outdoor, and accessory parts with identification numbers.
Details optional accessories like air cleaning and deodorizing filters for maintenance.
