DC Fan Motor Tester 3 Wire 5 Wire Short Protection Speed Adjustment for HVAC Motor Diagnostics(B)

Air Conditioner 3-Wire/5-Wire DC Fan Motor Tester – Short- Protection, Speed Adjustment For HVAC Motor Diagnostics Tool This universal DC fan motor tester simplifies fault diagnosis for HVAC technicians.It supports both 3-wire and 5-wire DC motors and detects issues including motor failure, speed inconsistency, and abnormal feedback signals.A digital display shows real-time RPM and frequency readings.short- protection activates automatically if a 310V overload is detected, safeguarding both the tester and the motor. Color-coded ports enable straightforward wiring: Red for 310V, Black for GND, Yellow for VSP (speed control), Blue for FG (speed feedback), and White for 15V (VCC).A dedicated 3-wire/5-wire mode switch ensures compatibility with standard DC motors.An adjustable speed knob allows gradual motor speed control to simulate operational conditions. The tester features a sturdy housing designed to withstand incidental drops and impacts. This is not an part.All brand mentions are used strictly for compatibility reference.

• Designed for HVAC technicians working with 3-wire and 5-wire DC fan motors commonly found in residential and light commercial air conditioning units
• Supports a wide voltage range of 12V to 48V DC, enabling compatibility with most modern variable-speed blower motors used in split-system and ductless -split AC units
• Features short- protection to safeguard both the tester and connected motor during diagnostic testing and bench evaluation
• Includes intuitive speed adjustment via dial, allowing precise control over motor RPM for functional verification and function benchmarking
• Compact handheld form factor with LED indicators and clear status feedback, optimized for on-site troubleshooting in tight mechanical rooms or rooftop unit enclosures