Goodman Error Code 2: Pressure Switch Stuck Closed
LED Blink Pattern
LED blinks 2 times.
How to Fix Goodman Code 2
- Step 1: Turn off power to your HVAC unit at the circuit breaker for 30 seconds, then turn it back on. This may reset the switch.
- Step 2: If the issue persists, check the pressure switch for any visible signs of damage or dirt. If it's clean and undamaged, it's time to call a professional.
- Step 3: Do not attempt to open the unit or handle the refrigerant lines yourself. This can be dangerous and should be left to a qualified technician.
How to Reset Goodman Code 2
- Turn off the furnace power switch, usually located on or near the unit.
- Turn off the circuit breaker for the furnace. Wait 30 seconds.
- Restore power at the breaker and flip the furnace switch back on.
- Set the thermostat to call for heat. If the error code returns after 2-3 ignition attempts, the fault requires repair.
Resetting clears the code from the display but does not fix the underlying fault. If the code returns after reset, proceed to the diagnostic steps above.
What Does Goodman Error Code 2 Mean?
Error code 2 on your Goodman HVAC unit indicates that the pressure switch is stuck in the closed position. This switch is designed to monitor the refrigerant pressure in your system and ensure it's within safe limits. When it gets stuck closed, it falsely signals that the pressure is too high, causing your system to shut down. This is a common issue with Goodman units and can usually be resolved by cycling the power or checking the switch itself.
Common Causes
- Wiring issue causing the switch to stick
- Dirt or debris preventing the switch from opening
- Faulty pressure switch
- Incorrect refrigerant charge causing high pressure
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| System is not running | Measure the voltage across the pressure switch terminals using a multimeter | 0 volts (open circuit) |
| System is running and displaying error 2 | Measure the pressure in the suction line using a manifold gauge set | Pressure should be within the manufacturer's specified range for your system |
Applicable Goodman Models
Recall Notices
Issued: November 1, 2021
Affected models: Molded plastic evaporator coil drain pans in up-flow condensing gas furnaces
Drain pans can overheat, melt, and deform, posing a fire hazard. Recall expanded January 2024.
Replacement Parts
| Part | OEM Number | Est. Cost | Where to Buy |
|---|---|---|---|
| Pressure Switch | 322101 | — | Find Part |
Related Codes on Same Models
Other codes that affect the same Goodman model families as 2.
| Code | Description | Severity |
|---|---|---|
| 1 | System Lockout | Warning |
| 3 | Pressure Switch Stuck Open | Warning |
| 4 | Open High Limit Switch | Warning |
| 5 | Flame Sensed With Gas Valve Off | Warning |
| 6 | Open Rollout Switch | Warning |
| 7 | Low Flame Signal | Warning |
| 8 | Ignitor Error | Warning |
| CONTINUOUS | Reversed Polarity | Warning |
| F01 | Goodman Code F01 - Ignition Lockout | Critical |
| STEADY-ON | Normal Operation | Info |