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

Air Conditioner 3/5-Wire DC Fan Motor Tester, Short-Circuit Protection & Speed Adjustment for HVAC Motor DiagnosticsDescription: 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. Hassle-Free Testing with Intuitive Design Color-Coded Ports: Match wires effortlessly: Red → 310V | Black → GND | Yellow → VSP (speed control) Blue → FG (speed feedback) | White → 15V (VCC) 3-Wire/5-Wire Switch: Toggle modes for compatibility with all standard DC motors. Adjustable Speed Knob: Simulate real-world operating conditions by gradually increasing motor speed. Built to Protect Sturdy Housing: Durable casing resists accidental drops or impacts. Short-Circuit Protection: Automatically cuts off power if 310V overload is detected. 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. WARNING: Always double-check wire functions before connecting to avoid burnout. Do not connect NC (empty) ports. Specifications: Input Voltage: 310V DC (Red) | 15V DC (White) Interfaces: VSP (Yellow), FG (Blue), GND (Black) Dimensions: 90mm x 58mm x 115mm Display: Digital LCD Screen Protection: 310V Short-Circuit Protection Universal Compatibility: Works with 3-wire & 5-wire DC fan motors (supports indoor/outdoor HVAC units). Package included:1 x DC Fan Motor Tester

• 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, blue, white) for error-free connections.