Troubleshooting & Diagnosis TableUpdated 3 hours ago
This article provides a troubleshooting and diagnosis table for wall-mounted, ceiling cassette, floor-ceiling flex, and ducted ceiling concealed systems.
This table for the following systems:
- Diamante Essenza (WYT-17)
- Diamante Pro (WYT-20)
- Quantum Ultra (WYT-24)
- Quantum Hyperformance (WYT-25)
- Quantum Fresh (WYT-FA)
- Quantum Ultra Ceiling Cassette (CYT-24)
- Quantum Ultra Ducted Ceiling Concealed (RYT-24)
- Quantum Ultra Floor-Ceiling Flex (UYT-24)
- Quantum Ultra Multi-Zone
| Malfunction | Possible Causes |
| If the appliance does not operate or respond | There is a power failure |
| The plug is pulled out or tripped | |
| The wrong breaker or wiring is being used | |
| The indoor or outdoor fan motor is damaged | |
| There is a faulty compressor or thermomagnetic circuit breaker | |
| There is a faulty protective device or fuses | |
| The electrical connections are loose | |
| The system has entered a protection mode | |
| The system has entered an overvoltage or undervoltage protection | |
| The Timer-On function is active | |
| The electronic control board was damaged | |
| If there are strange odors | The air filter is dirty |
| If there is running water | There is a backflow of condensate water into the system's drain pan |
| If a fine mist is coming from the air outlet | This occurs when the air in the room becomes considerably cold. For example, in "Cooling" or "Dehumidification/Dry" modes |
| If strange noises are being emitted | This noise is made by the expansion or contraction of the front panel due to variations in temperature. If so, this is normal |
| If the airflow is insufficient, and the air is not hold or cold enough | The temperature setting is unsuitable |
| The air conditioner intakes and outlets may be obstructed | |
| The air filter may be dirty | |
| The fan speed may be set at the minimum | |
| There may be too many other heat sources in the room | |
| The system may be getting low on refrigerant. Pressures should be checked | |
| If the appliance does not respond to commands | The remote control may not be close enough to the indoor unit |
| The batteries of the remote control may need to be replaced | |
| There are obstacles between the remote control and indoor unit signal receiver | |
| If the display is off | The Display button has been pressed |
| There has been a power failure | |
| Switch off the air conditioner immediately and cut off the power supply in the event of | Strange noises not due to expansion/contraction are heard during operation |
| The electronic control board is faulty or malfunctioning | |
| Any fuses or switches are faulty or malfunctioning | |
| The sound of spraying water or objects are heard inside the appliance | |
| The cables or plugs have overheated | |
| There are very strong odors being emitted from the appliance |