HVAC SERVICE
AC Compressor Repair in Kathmandu
The compressor is the heart of an air-conditioning system, but a compressor that will not start is not always a failed compressor. Aircon engineers test power, capacitors, contactors, inverter drives, refrigerant conditions, and system pressures before recommending repair or replacement.
Request Compressor DiagnosisOur compressor service covers residential split ACs, inverter systems, packaged units, and commercial HVAC equipment. We document the fault and confirm compatibility before any replacement is proposed.
Compressor symptoms we investigate
No cooling, repeated tripping, humming without starting, abnormal noise, high power draw, overheating, and unequal pressures can indicate a compressor or a related system fault. A compressor replacement without testing the system can lead to another failure.
- Compressor does not start or trips the breaker
- Outdoor unit hums but the compressor will not run
- Low cooling with abnormal operating pressures
- Overheating, unusual noise, or oil around pipework
- Inverter error codes or compressor drive faults
What a proper diagnosis includes
We verify supply voltage, terminals, capacitors, contactors, winding resistance, insulation condition, current draw, refrigerant circuit condition, and control signals. For inverter systems, the drive board and communication circuit are checked before the compressor is condemned.
- Electrical and winding tests
- Starting and running current measurement
- Pressure and temperature readings
- Leak, oil, and refrigerant checks
- Model, refrigerant, phase, and capacity matching
Service coverage
Our engineering team supports AC systems across Kathmandu, Lalitpur, Bhaktapur and the wider Kathmandu Valley.
Frequently asked questions
How do I know if my AC compressor is bad?
A tripped breaker, humming, abnormal current, poor cooling, or unusual noise can be symptoms, but none proves compressor failure by itself. Electrical, pressure, control, and refrigerant tests are required.
Can an inverter AC compressor be repaired?
Depending on the fault, the problem may be in the inverter PCB, sensor, wiring, refrigerant circuit, or compressor. A qualified diagnosis determines whether repair or replacement is technically and economically suitable.
Do you supply replacement AC compressors?
We can help identify compatible compressors and parts based on the equipment model, refrigerant, voltage, phase, capacity, and application. Availability must be confirmed for the specific unit.
Need help with your AC system?
Speak with Aircon Engineering Solutions about repair, maintenance or a site assessment.