3 🟡 Repair Required
Goodman Error Code 3: Pressure Switch Stuck Open
⚠️ Your Goodman HVAC system has detected a pressure switch issue, which could lead to system damage if not addressed promptly.
How to Fix Goodman Code 3
- Check if your HVAC system is running. If it is, turn it off at the thermostat and at the circuit breaker to prevent further damage.
- Inspect the air filter. If it's clogged, replace it with a new one.
- Call a professional HVAC technician to diagnose and repair the issue. Do not attempt to open the unit or handle refrigerant lines yourself.
What Does Goodman Error Code 3 Mean?
Goodman's error code 3 indicates that the pressure switch is stuck open. This switch is crucial for monitoring and controlling the refrigerant pressure in your HVAC system. When it's stuck open, it can't accurately sense the pressure, leading to potential system issues. This is typically caused by a faulty switch or low refrigerant levels, which can cause the switch to open prematurely.
Common Causes of Goodman Code 3
- Faulty pressure switch
- Low refrigerant levels
- Air or moisture in the system
- Blocked or restricted refrigerant flow
Applicable Goodman Models
Need a Pro to Fix Goodman Code 3?
A licensed HVAC technician can diagnose and fix this issue quickly.
Find a Licensed Tech Near You →Replacement Parts for Goodman Furnace Code 3
Pressure Switch OEM: G120002
Refrigerant