QD-U03C+ universal control board for wall-mounted split A/C. 5 working modes, 3 fan speeds, dual sensors, anti-cold draft, auto restart. 220–240V. Includes remote, display, sensors & transformer. OEM available.
QD-U03C+ universal ON-OFF AC control board kit for wall-mounted split air conditioners. Supports 5 working modes (auto, cool, dry, fan, heat) and 3 fan speeds. Features dual sensors, anti-cold draft in heating, auto restart, 3-minute compressor protection, and auto defrost. Transformer input 220–240V, output 13.5V 0.25A. Includes remote, display, sensors, and transformer.
| Parameter | Details |
|---|---|
| Model | QD-U03C+ Universal ON-OFF Control Board |
| Product Type | Wall-Mounted Split AC Control Board |
| Working Modes | Auto / Cool / Dry / Fan / Heat (5 Modes) |
| Fan Speeds | 3 levels (Low / Medium / High) + Auto Fan |
| Temperature Range | 16°C – 30°C |
| Input Voltage | 220–240V AC, 50/60Hz |
| Transformer Output | 13.5V, 0.25A |
| Key Functions | Dual sensors, anti-cold draft, auto restart, auto defrost, sleep mode, timer ON/OFF (1–16h), independent outdoor fan control |
| Restart Protection | 3-minute compressor delay |
| Compatibility | Universal replacement for conventional ON-OFF split ACs (Not for inverter ACs) |
| Included Components | Control board, remote, display board, sensors (×2), transformer |
| Operating Temperature | -10°C to +55°C |
Universal ON-OFF Replacement – Fits most conventional wall-mounted split ACs. One board covers multiple repair needs for distributors and technicians.
5 Working Modes & 3 Fan Speeds – Supports Auto, Cool, Dry, Fan, and Heat with Low/Medium/High fan control. Delivers full functional coverage.
Dual Sensor Design – Monitors both indoor and evaporator temperatures. Ensures precise and stable temperature management.
Anti-Cold Draft in Heating – Delays fan operation during heating startup. Prevents uncomfortable cold airflow for end users.
3-Minute Compressor Protection – Delays restart after compressor shut-off. Protects the compressor and extends system life.
Auto Restart Function – Resumes previous operation after power restoration. Improves reliability in unstable power grid regions.
Independent Outdoor Fan Control – Optimizes outdoor unit performance and energy use. Suitable for varied climate conditions.
Complete Kit Included – Comes with remote, display, dual sensors, and transformer. Saves buyers the hassle of sourcing separate parts.
Clear Inverter Distinction – Specifically designed for ON-OFF split ACs, not inverter systems. Reduces mis-purchase and returns for B2B buyers.
OEM & ODM Support – Custom logo, packaging, and firmware available. Produced per customer specifications.
For technical datasheets, samples, or bulk pricing, contact us directly.
Send your specifications (voltage, quantity) for a free technical evaluation and quotation within 24 hours. OEM and ODM orders welcome.
