LO-PRESS
Goodman · GSX140361 3 Ton 14 SEER Air Conditioner Condenser
The low-pressure switch (if equipped) has opened due to low suction pressure — causes: low refrigerant charge (leak), restricted metering device (TXV or piston), frozen evaporator coil, or closed liquid line service valve; some GSX models do not have a factory-installed low-pressure switch; requires professional diagnosis
Error LO-PRESS on the Goodman GSX140361 3 Ton 14 SEER Air Conditioner Condenser means: Low Pressure Safety Trip. The top-ranked community fix is “Test and Replace Low-Pressure Switch” (medium difficulty, ~60 min, DIY cost: $15-$30). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · air conditioner
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many air conditioner repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $150-$250.
Run/Start Capacitor Failure
Compressor Failure
Compressor Overheating / Thermal Overload
Contactor Failure
Dirty Condenser Coil
Electrical Connection Failure
Condenser Fan Motor Failure
Frozen Evaporator Coil
The Goodman GSX140361 3 Ton 14 SEER Air Conditioner Condenser has 8 other known error codes:
Error code LO-PRESS also appears on 1 other Goodman model:
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