GE Appliances AF error code

What it means

The leakage sensor has reached end of life and must be handled by service personnel.

Urgency

Likely causes

1. Sensor approaching or at end of life
2. End-of-life counting error of sensor

Homeowner fix

Schedule service. Do not bypass the refrigerant sensor, open the indoor unit, or keep operating the system with AF displayed.

When to call a pro

Call GE Appliances ductless support or a qualified HVAC technician for sensor replacement/service. Tell them the manual lists AF as leakage sensor end-of-life.

Repair vs replace

A sensor end-of-life fault is normally a sensor service issue, not a system replacement decision.

• GE Appliances Altitude 9,000 BTU R-454B 208/230V (GS09WB2BEA / 1G09AD2BEA)

  GE Altitude

• GE Appliances Altitude 11,800 BTU R-454B 208/230V (GS12WB2BEA / 1G12AD2BEA)

  GE Altitude

• GE Appliances Altitude 13,500 BTU R-454B 208/230V (GS15WB2BEA / 1G15AD2BEA)

  GE Altitude

• GE Appliances Altitude 17,000 BTU R-454B 208/230V (GS18WB2BEA / 1G18AD2BEA)

  GE Altitude

For your technician

Official GE Altitude service manual, H2 display table and H22 sensor end-of-life flowchart: AF - leakage sensor end-of-life; causes are sensor at/approaching end of life or end-of-life counting error. Manual indicates replacement is needed when actual use reaches 15 years. Page context: GE Appliances maps this display to the GE Altitude line; source: GE Appliances Single-Zone Service Manual, Ductless Multi-Split Heat Pumps, Altitude models 1G09AD2BEA through 1G3036AD2BEA and GSxxWB2BEA highwalls; display convention: match the letter A and letter F marker exactly before comparing neighboring codes.

Which systems show it

GE Altitude

Related troubleshooting

Use the symptom guide alongside the exact display code if the unit is flashing, cycling, or showing comfort symptoms.

Related codes

Source

Next step