Excessive or insufficient exhaust pressure from the split air conditioner

- Excessive discharge pressure.
- Dirt on the condenser coil.
- Internal unit fan (in heat mode) or fan of outdoor unit (in cold mode) defective.
- Excessive refrigerant charge.
- Non-condensable gases in the circuit.
- Low discharge pressure.
- Very low refrigerant charge.
- Liquid line blocked or kneaded.
- Compressor valves damaged or leaking.