Short-Circuit Protection Air Conditioner 3-Wire/5-Wire DC Fan Motor Tester-Speed Adjustment for HVAC Motor Diagnostic

Wooswen WARNING:Always double-check wire functions before connecting to avoid burnout.Do not connect NC (empty) ports.Wiring Diagram:Labels and wire order depending on the motor manufacturer. each wire is connected to the corresponding terminal based on its function.NC is an empty terminal (no connection).Input Voltage: 310V DC 15V DC (White)Interfaces: (Yellow), FG (), GND (Black)Dimensions: 90mm x 58mm x 115mmDisplay: Digital LCD ScreenProtection: 310V Short-Circuit ProtectionUniversal Compatibility: Works with 3-wire & 5-wire DC fan motors (supports indoor/outdoor HVAC units).Safety Design: Protective housing + 310V short-circuit protection to prevent damage.Digital Diagnostics: LCD screen displays real-time speed feedback frequency for quick fault detection.Adjustable Speed Control: Built-in speed adjustment knob for testing motor acceleration.Easy Switching: Toggle between 3-wire and 5-wire modes with a switch.Clear Wiring Guide: Color-coded ports (red, black, yellow, , white) for error-free connections.Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on.Voltage:AC110VColor: As ShownMaterial: Metal+PlasticPackage Contents:1 * Motor tester1 * Plug wireOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

• Hassle-Free Testing with Intuitive Design. Color-Coded Ports: Match wires effortlessly: Red → 310V Black → GND Yellow → (speed control). → FG (speed feedback) White → 15V (VCC). 3-Wire/5-Wire Switch: Toggle modes for compatibility with all standard DC motors.
• Adjustable Speed Knob: real-world operating conditions by gradually increasing motor speed. Built to Protect. Sturdy Housing: casing resists accidental drops or impacts. Short-Circuit Protection: Automatically cuts off power if 310V overload is detected.
• Professional HVAC Motor Tester for Quick Fault Diagnosis. This universal DC fan motor tester simplifies troubleshooting for HVAC technicians and DIY enthusiasts. Designed for 3-wire and 5-wire DC motors, it detects issues like motor failure, speed inconsistency, or abnormal feedback signals. The digital display instantly reveals RPM frequency, while the 310V short-circuit protection safeguards both the tester and motor during testing.
• How to Use: Connect Wires: Match motor wires to the tester's labeled ports (check motor nameplate for correct functions). Select Mode: Press/pull the 3-wire/5-wire switch based on your motor type. Test & Diagnose: Slowly turn the speed knob. If the motor accelerates smoothly and the screen displays rising RPM frequency → motor is healthy. If no rotation, unstable speed, or abnormal frequency → motor fault detected.