Sanyo Variable Refrigerant
Re: "P" Error Codes / Fault Codes
| P01 | Indoor unit fault, Fan motor thermal overload |
| P02 | Outdoor unit fault, Compressor motor thermal overload, over or under voltage |
| P03 |
Outdoor unit fault, Compressor discharge temperature too high (Comp1) over 111 degC. Low on ref gas, exp valve, pipework damage. |
| P04 | Outdoor unit fault, High pressure trip |
| P05 | Outdoor unit fault, Open phase on power supply. Check power on each phase, inverter pcb, control pcb |
| P09 | Indoor unit fault, Ceiling panel incorrectly wired |
| P10 | Indoor unit fault, Condensate float switch opened |
| P11 | GHP - Water Heat exch low temp (frost protection) fault |
| P12 | Indoor unit fault, Fan DC motor fault |
| P14 | Input from leak detector (If fitted) |
| P15 |
Refrigerant loss, high discharge temp and EEV wide open and low compressor current draw. |
| P16 | Outdoor unit fault, Open phase on compressor power supply |
| P17 |
Outdoor unit fault, Compressor discharge temperature too high (Comp2) over 111 degC. Low on ref gas, exp valve, pipework damage. |
| P18 | Outdoor unit fault, By-pass valve failure |
| P19 | Outdoor unit fault, 4 way valve failure, indoor temp rises in cooling or falls in heating. Check wiring, coil, pcb output, valve operation. |
| P20 | Ref gas, high temp/pressure fault, heat exch temp high C2, 55-60 degC, cooling over-load, sensor fault. |
| P22 |
Outdoor unit fan motor fault, fan blade jammed, check connections, does fan turn freely, motor resistance 30-40ohm on each pair, no fan fault, yes pcb fault. |
| P26 |
Outdoor unit fault, Compressor overcurrent - check winding resistance, Inverter failure - check internal resistance term HIC + & - to UVW 200-300Kohm or more |
| P29 |
Outdoor unit fault, Inverter circuit fault - Motor-current Detection Circuit (MDC) fault, check comp windings, sensors C1 & TS, if ok possible pcb failure. |
| P30 | Indoor unit fault, System controller detected fault on sub indoor unit |
| P31 | Simultaneous operation multi control fault, Group controller fault |