Sanyo - "P" Error Codes

Article ID: 144

Last updated: 16 Jan, 2017

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