e3
Moderate
Goodman · HVAC Systems (AC, Furnaces & Heat Pumps)
High Pressure Switch Open
Quick Answer
Error code E3 on your Goodman HVAC Systems (AC, Furnaces & Heat Pumps) means: High Pressure Switch Open. This is usually fixable — see the step-by-step guide below.
Likely Causes
How to Fix It
1
Clean the outdoor condenser coil thoroughly with a garden hose and coil cleaner
2
Verify the condenser fan motor is running and check its amperage
3
Check for clearance around the outdoor unit (minimum 24 inches on all sides)
4
Inspect the liquid line for kinks or restrictions
5
A licensed HVAC technician should verify the refrigerant charge with gauges
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
High-pressure switch
Coil cleaner
Fan capacitor
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