Air Conditioner: Low head pressure persists in winter, or loss of capacity in summer
Low head pressure persists in winter, or loss of capacity in summer on a air conditioner: Possible causes and checks for: low head pressure persists in winter, or loss of capacity in summer.
Common causes of low head pressure persists in winter, or loss of capacity in summer
- Split condenser valve not energizing/de-energizing (pilot
- Coil
- Control thermostat/pressure switch)
- Summer condenser check valve leaking
- Bleeder line check valve/solenoid stuck
- Charge trapped in summer condenser
How to fix low head pressure persists in winter, or loss of capacity in summer: step by step
- Valve coil and control signal, check valves, bleeder line
If the unit shows an error code, look it up: Carrier Air Conditioner codes Goodman Air Conditioner codes KeepRite Air Conditioner codes Lennox Air Conditioner codes Trane Air Conditioner codes
Source: General HVAC service practice — verify per model. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.