HVACopedia

All brands · Air conditioner troubleshooting

Lack of cooling, very high head, high amps, high suction

What is going on

Possible causes and checks for: lack of cooling, very high head, high amps, high suction.

Likely causes

  • Severe overcharge (also check compressor, condenser fan)

Check in this order

  1. Recover, evacuate, recharge by subcooling (TXV). (33C) p.900 [874]

More air conditioner guides

Related

Calculators and reference tables

Take it to the job

All guides, error codes and tips work offline in the HVACopedia app.

Open the app

Source: General HVAC service practice — verify per model. Written in our own words; check the manual for your exact model.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.