GE Appliances / GE Altitude
GE Appliances F1 error code
The inverter power module detected protection or failure involving the module, compressor wiring, or compressor.
- Urgency
- stop use
- Verified
- Jul 31, 2026
- Fix path
- Technician
What it means
The inverter power module detected protection or failure involving the module, compressor wiring, or compressor.
Urgency
Likely causes
- IPM bad
- Loose compressor wire
- Bad compressor
Homeowner fix
Turn the system off and power cycle once if safe. Do not open the outdoor unit or attempt compressor/inverter work.
When to call a pro
Call GE Appliances ductless support or a qualified HVAC technician if F1 returns. Tell them the service manual lists F1 as IPM power module failure.
This code points to compressor and electrical or inverter work - get repair quotes from contractors in your area.
Get repair quotesRepair vs replace
IPM or compressor repairs can be expensive; compare major repair with replacement on older out-of-warranty systems.
See GE Appliances mini-splitsYour GE Appliances model
GE Altitude model pages in the GE Appliances catalog help compare this repair path with current replacement options.
- 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 highwall F1-F45 note and H8 IPM flowchart: F1 - IPM power module failure; causes are bad IPM, loose compressor wire, or bad compressor. 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 F and one 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
- Document
- GE Appliances Single-Zone Service Manual, Ductless Multi-Split Heat Pumps, Altitude models 1G09AD2BEA through 1G3036AD2BEA and GSxxWB2BEA highwalls