T
e2
Moderate
Trane · HVAC Systems (AC, Furnaces & Heat Pumps)
High Pressure Fault
Quick Answer
Error code E2 on your Trane HVAC Systems (AC, Furnaces & Heat Pumps) means: High Pressure Fault. This is usually fixable — see the step-by-step guide below.
Likely Causes
  1. Dirty outdoor condenser coil blocking airflow
  2. Failed condenser fan motor
  3. Refrigerant overcharge
  4. Non-condensable gases (air) trapped in the system
  5. Restriction in the liquid line
How to Fix It
1
Clean the outdoor condenser coil using a garden hose (from inside out) and approved coil cleaner
2
Verify the condenser fan motor is operating and drawing proper amperage
3
Check discharge pressure with gauges and compare to the expected range
4
Inspect for kinks or restrictions in the refrigerant lines
5
A licensed HVAC technician should recover and properly recharge the system if overcharged
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Condenser fan motor
Fan blade
High-pressure switch
Coil cleaner
Related Error Codes
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