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Air-Cooled Chiller Compressor Unloader Valve Repair – EKG M&E Sdn Bhd

At EKG M&E Sdn Bhd, we provide professional unloader valve repair services for air-cooled chiller compressors, ensuring precise capacity control, smooth start-up, and optimal system efficiency. The unloader valve plays a critical role in regulating refrigerant flow and reducing compressor load during operation. When this component malfunctions, it can cause performance issues, excessive wear, and energy waste.

Why Unloader Valve Repair Is Important

• Ensures accurate compressor capacity control

• Prevents hard starts and overloading

• Reduces energy consumption and cycling stress

• Protects internal compressor components from strain

• Supports smooth and stable cooling performance

Common Unloader Valve Issues We Repair

• Valve stuck in open or closed position

• Intermittent or failed actuation during load/unload cycles

• Leaking unloader piston or diaphragm

• Solenoid coil failure or electrical fault

• Oil or refrigerant contamination affecting valve movement

Symptoms of a Faulty Unloader Valve

• Compressor short cycling or failing to unload

• Inconsistent suction pressure or refrigerant flow

• High amperage draw during start-up

• Cooling capacity drops under part-load conditions

• Unusual vibration or noise during load transitions

Our Unloader Valve Repair Process

Diagnosis and Inspection
We begin by inspecting the unloader system, testing the solenoid coil, pressure response, and valve actuation. We use:

• Electrical testing equipment

• Suction/discharge pressure monitoring

• Thermal and vibration analysis

Component Repair or Replacement
Based on our findings, we:

• Clean or replace blocked or contaminated valve components

• Repair or install new solenoid coils or valve actuators

• Replace gaskets, springs, pistons, or diaphragms as needed

• Adjust timing or pressure control settings for accurate operation

Testing and Recommissioning
After repairs, we verify:

• Proper valve actuation and sealing

• Smooth load/unload performance

• Stable operating pressures

• Balanced compressor cycling and current draw

Benefits of Unloader Valve Repair

• Restores full compressor functionality and efficiency

• Reduces mechanical stress and energy usage

• Improves part-load performance and system responsiveness

• Prevents future breakdowns or electrical overload

• Supports reliable and optimized HVAC operation

Why Choose EKG M&E Sdn Bhd?

• Experts in compressor control and valve systems

• Experience with scroll, screw, and reciprocating compressors

• Familiar with all major air-cooled chiller brands and valve types

• Quick turnaround and precision repair work

• Full support from diagnosis to performance validation

Final Thoughts

A faulty unloader valve can quietly drain performance and drive up costs. With EKG M&E Sdn Bhd’s air-cooled chiller compressor unloader valve repair, you restore smooth, efficient operation and avoid bigger problems down the road. Contact us today to schedule an inspection or repair service.