HVACopediaGree · Heat pump
C5 Jumper (capacity) cap missing or bad
What the control is telling you
The indoor board does not detect a valid jumper cap. The remote and buttons respond but commands are not carried out.
Applies to: Gree Sapphire 9-24k (SAP..HP230V1A), Livo GEN4 30-36k (4LIV..HP230V1A), Vireo GEN3 9-24k (3VIR..HP115/230V1A), Multi21+ 18-24k multi-zone (MULTI..HP230V1CO)
Likely causes
- No jumper cap on the board
- Cap not fully seated or in wrong
- Cap damaged
- Board detection circuit faulty
Test and repair steps
- Check the jumper cap is present on the indoor board.
- Reseat it firmly; when replacing a board, move the cap from the old board.
- Replace the cap with the correct one for the model.
- If the cap is good, replace the indoor board.
Models that show this code
14 models in Gree Sapphire, Gree Livo GEN4, Gree Vireo GEN3, Gree Multi21+
Other codes on the same units
- b5 Liquid line (valve) temperature sensor open or shorted
- b7 Gas line (valve) temperature sensor open or shorted
- E1 High pressure protection
- E2 Indoor coil freeze protection (status)
- E3 Low pressure protection
- E4 Compressor discharge temperature too high
- E5 Overcurrent protection (whole unit)
- E6 Indoor/outdoor communication fault
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Source: Gree Sapphire 9-12k (SAP09-12HP230V1A) service.pdf - section 9.1 Error Code List / 9.2 Procedure of Troubleshooting; Gree Sapphire 18-24k (SAP18-24HP230V1A) service.pdf - section 9.1 Error Code List / 9.2 Procedure of Troubleshooting; Gree Livo GEN4 30-36k (4LIV30-36HP230V1A) service.pdf - section 9.1 Error Code List / 9.2 Procedure of Troubleshooting; Gree Vireo GEN3 9-24k (3VIR..HP115-230V1A) service GREE_VIREOGEN3_SERVICE_090921.pdf - section 9.1 Error Code List / 9.2 Procedure of Troubleshooting; Gree Multi21+ multi-zone 18-24k (MULTI18-24HP230V1CO) service.pdf - section 9.1 Malfunction status sheet / 9.2 Malfunction Checking and Elimination. Summarized in our own words; check the original manual for your model.
Homeowner looking at this code? See what it means for you and when to call a technician.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.