1. Einleitung
This manual provides detailed instructions for the installation, operation, and maintenance of the MH-GY-YTH18 Humidifier Motherboard. This specialized board integrates the power supply and atomization control functions, designed for use in WT-J16 and WT-J26 pumping type humidifiers. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Produktüberschreitungview
The MH-GY-YTH18 is a compact and integrated circuit board serving as the central control unit for compatible humidifiers. It manages power distribution and the atomization process, which is crucial for humidifier functionality.

Abbildung 2.1: Vorderseite view of the MH-GY-YTH18 humidifier motherboard, showing main components and connectors.

Abbildung 2.2: Nahaufnahme view of the MH-GY-YTH18 board's connectors (CN1, CN2, EC1, EC3, EC6) and power input terminals.

Abbildung 2.3: Rückseite view of the MH-GY-YTH18 humidifier motherboard, displaying the PCB traces and mounting points.

Figure 2.4: Detailed close-up of the MH-GY-YTH18 board, showing the model number, manufacturer details, and 'AC IN L N' terminals for power connection.
3. Spezifikationen
| Besonderheit | Beschreibung |
|---|---|
| Modell | MH-GY-YTH18 |
| Kompatibilität | WT-J16/J26 pumping type humidifiers |
| Typ | Humidifier Parts (Motherboard, Power Board, Atomization Board) |
| Elektrisch | No (component, requires external power supply from humidifier) |
| Hochgefährliche Chemikalie | Keiner |
| Herkunft | Festlandchina |
| Abmessungen (L x B x H) | 18 cm x 12 cm x 5 cm (ungefähre Verpackungsmaße) |
| Gewicht | 0.2 kg (ungefähres Paketgewicht) |
4. Installation und Einrichtung
Warnung: Installation should only be performed by qualified personnel. Ensure the humidifier is completely disconnected from the power supply before beginning any installation or repair work. Failure to do so may result in electric shock or damage to the device.
- Vorbereitung: Disconnect the humidifier from its power source. Open the humidifier casing to access the existing motherboard.
- Entfernung der alten Verkleidung: Carefully disconnect all wires and connectors from the old motherboard. Note their positions or take photos for reference. Unscrew and remove the old board.
- Mounting the New Board: Position the MH-GY-YTH18 board in the designated slot within the humidifier. Secure it using appropriate screws.
- Strom anschließen: Locate the 'AC IN L N' terminals on the MH-GY-YTH18 board (refer to Figure 2.4). Connect the live (L) and neutral (N) wires from the humidifier's power input to these terminals. Ensure connections are secure and correctly polarized.
- Anschlusskomponenten: Reconnect all other humidifier components (e.g., water level sensor, fan, control panel, transducer) to the corresponding connectors on the MH-GY-YTH18 board (e.g., CN1, CN2, EC1, EC3, EC6, as shown in Figure 2.2). Refer to your humidifier's specific wiring diagram if available.
- Endkontrolle: Double-check all connections to ensure they are firm and correctly placed. Ensure no loose wires or components are present.
- Schließen Sie Casing: Carefully close the humidifier casing und sichere es.
- Prüfen: Reconnect the humidifier to the power supply and test its functionality according to its original operating instructions.
5. Bedienung
The MH-GY-YTH18 motherboard functions as an internal component and does not have direct user-operable controls. Its operation is integrated with the humidifier's overall system. Once correctly installed, the board will manage the power supply and control the atomization process as dictated by the humidifier's external controls (e.g., power button, mist level settings, timer). Ensure your humidifier's external controls are functioning correctly for optimal performance.
6. Wartung
As an electronic component, the MH-GY-YTH18 motherboard requires minimal maintenance. However, to ensure longevity and reliable performance:
- Trocken halten: Ensure the humidifier environment remains dry and free from excessive moisture or water splashes, which can damage electronic circuits.
- Sauberkeit: Periodically inspect the board for dust accumulation. If necessary, gently clean with a soft, dry brush or compressed air. Do not use liquids or harsh chemicals.
- Verbindungsintegrität: During routine humidifier maintenance, briefly check that all wire connections to the motherboard remain secure.
7. Fehlerbehebung
If your humidifier experiences issues after installing the MH-GY-YTH18 motherboard, consider the following troubleshooting steps:
- Kein Strom:
- Check the main power connection to the humidifier.
- Verify that the 'AC IN L N' wires are correctly and securely connected to the motherboard.
- Inspect the F1 fuse on the board (refer to Figure 2.1) for any signs of damage or being blown.
- No Mist/Atomization:
- Ensure the water level sensor is correctly connected and functioning.
- Check the connection to the atomization transducer.
- Verify that the humidifier's water tank has sufficient water.
- Fehlerhafte Funktionalität:
- Review all connections to the motherboard (CN1, CN2, EC1, EC3, EC6) to ensure they match the humidifier's original wiring.
- Stellen Sie sicher, dass das Bedienfeld ordnungsgemäß angeschlossen ist.
- Ungewöhnliche Geräusche:
- Check for any loose components or wires inside the humidifier casing.
- The board includes a small speaker/buzzer (refer to Figure 2.1); ensure it is not obstructed if it's producing unintended sounds.
If issues persist after these steps, it may indicate a faulty board or another component within the humidifier. Professional assistance is recommended.
8. Benutzertipps
- Kompatibilitätsprüfung: Vor dem Kaufasing or installing, always verify that the MH-GY-YTH18 motherboard is specifically compatible with your humidifier model (WT-J16 or WT-J26 pumping type). Refer to your humidifier's original manual or manufacturer specifications.
- Statische Entladung: When handling the motherboard, always take precautions against static electricity. Use an anti-static wrist strap or touch a grounded metal object before handling to prevent damage to sensitive electronic components.
- Dokumentation: Keep this instruction manual and any original humidifier documentation in a safe place for future reference.
9. Garantie und Support
For any warranty claims, technical support, or further inquiries regarding the MH-GY-YTH18 Humidifier Motherboard, please contact the seller or manufacturer directly. Provide your purchase details and a clear description of the issue to facilitate prompt assistance.





