Inverter ACs are more complex than regular split ACs. Here are the most common issues we repair daily in Islamabad:
Inverter AC Not Cooling
Symptoms: AC runs but room stays hot, weak airflow, takes too long to cool
Common Causes: Low refrigerant gas, dirty filters, faulty compressor, blocked condenser coils
Our Fix: Complete diagnosis, gas leak detection, coil cleaning, compressor testing – usually fixed within 2-3 hours
Strange Noises from Inverter AC
Symptoms: Clicking, buzzing, grinding, or rattling sounds from indoor or outdoor unit
Common Causes: Loose fan blades, failing compressor bearings, debris in outdoor unit, motor issues
Our Fix: Component inspection, bearing lubrication, fan motor replacement if needed
Inverter AC Error Codes
Symptoms: Display shows E1, E2, F0, H6 or other error codes, AC shuts down automatically
Common Causes: Sensor failures, communication errors between indoor/outdoor units, PCB board issues
Our Fix: Error code diagnostics, sensor replacement, PCB repair or reprogramming
Water Leaking from Inverter AC
Symptoms: Water dripping from indoor unit, moisture on walls, pooling water beneath AC
Common Causes: Clogged drain pipe, frozen evaporator coil, improper installation, damaged drain pump
Our Fix: Drain line cleaning, pump replacement, coil defrosting, installation correction
Inverter AC Tripping Circuit Breaker
Symptoms: AC turns on then immediately trips the breaker, can’t run for more than few minutes
Common Causes: Short circuit, compressor overload, faulty capacitor, voltage fluctuations
Our Fix: Electrical testing, capacitor replacement, voltage stabilizer installation, wiring repair
Inverter Compressor Not Starting
Symptoms: Fan runs but compressor doesn’t start, humming sound without cooling, outdoor unit silent
Common Causes: Dead compressor, failed start capacitor, PCB board malfunction, low voltage
Our Fix: Compressor testing, capacitor replacement, PCB repair, electrical supply check