Code 83 — Low Pressure Lockout (4 hrs)

What does 83 mean?

The system has locked out due to low pressure in the refrigerant system. This typically indicates a refrigerant leak or other flow restriction. Lockout lasts 4 hours.

• Low refrigerant charge
• Refrigerant leak
• Restriction in the refrigerant lines
• Faulty low-pressure switch

Click steps to track your progress.

1. 1

   Allow the system the full 4-hour lockout period.

2. 2

   Visually inspect refrigerant lines for signs of leaks.

3. 3

   Ensure no new restrictions have been placed on airflow.

4. 4

   Contact an HVAC technician to check refrigerant levels and for leaks.