Sanyo Inverter Split
Outdoor heat exchanger sensor failureKHS3082 + CH3082KHS3682 + CH3682
SANYO Air Conditioners Fault Codes
GHP ENGINE ISSUES
Code Description
A CODES
A01 GHP – Engine oil pressure fault
A02 GHP – Engine oil level fault
A03 GHP – Engine over speed
A04 GHP – Engine under speed
A05 GHP – Ignition power supply failure
A06 GHP – Engine start up failure
A07 GHP – Fuel gas valve failure
A08 GHP – Engine stalled
A09 GHP – Engine overload
A10 GHP – High exaust gas temp
A11 GHP – Engine oil level failure
A12 GHP – Throttle actuator fault
A13 GHP – Fuel gas valve adjustment failure
A14 GHP – Engine oil pressure sensor fault
A15 GHP – Starter power output short circuit
A16 GHP – Starter motor locked
A17 GHP – Starter current (CT) coil failed
A19 GHP – Wax Valve (3 Way) fault
A20 GHP – Cooling water temp high
A21 GHP – Cooling water level fault
A22 GHP – Cooling water pump fault
A23 GHP – Engine crank angle sensor failure
A24 GHP – Engine cam angle sensor failure
A25 GHP – Clutch fault
A26 GHP – Misfire
A27 GHP – Catalyst temperature fault
A28 GHP – Generator fault
A29 GHP – Converter fault
A30 GHP – Fuel gas pressure low
CENTRAL CONTROLLER ISSUES
C CODES
C01 Duplicated setting of control address
C02 Central control number of units mis-matched
C03 Incorrect wiring of central control
C04 Incorrect connection of central control
C05 System Controller fault, error in transmiting comms signal, i/door or o/door unit not working, wiring fault
C06 System Controller fault, error in receiving comms signal, i/door or o/door unit not working, wiring fault, CN1 not connected correctly
C12 Batch alarm by local controller
C16 Transmission error from adaptor to unit
C17 Reception error to adaptor from unit
C18 Duplicate central address in adaptor
C19 Duplicate adaptor address
C20 Mix of PAC & GHP type units on adaptor
C21 Memory fault in adaptor
C22 Incorrect address setting in adaptor
C23 Host terminal software failure
C24 Host terminal hardware failure
C25 Host terminal processing failure
C26 Host terminal comunication failure
C28 Reception error of S-DDC from host terminal
C29 Initialization failure of S-DDC
C31 Configuration change detected by adaptor
DDRESSING & COMMUNICATION PROBLEMS
E CODES
E01 Remote control detecting error from indoor unit, Address not set/Auto address failed. Check interconnecting wiring etc. Re-address system.
E02 Remote detecting error from indoor unit,
E03 Indoor unit detecting error from remote,
E04 Indoor seeing error from outdoor. Qty of i/d units connected are less than qty set. Check; all i/d units are ON, reset turn off all units wait 5min power up
E05 Indoor unit detecting error from outdoor unit, Error in sending comms signal
E06 Outdoor unit detecting error from indoor unit, Error in receiving comms signal
E07 Outdoor unit detecting error from indoor unit, Error in sending comms signal
E08 Incorrect setting indoor/controller, Indoor address duplicated
E09 Incorrect setting indoor/controller, Remote address duplicated or IR wireless controller not disabled
E10 Indoor unit detecting error from ‘option’ plug, Error in sending comms signal
E11 Indoor unit detecting error from ‘option’ plug, Error in receiving comms signal
E12 Auto addressing failed, Auto address connector CN100 shorted during auto addressing
E13 Indoor unit failed to send signal to remote controller
E14 Setting Failure, Duplication of master indoor units
E15 Auto addressing failed, Number of indoor units connected are less than number set
E16 Auto addressing failed, Number of indoor units connected are more than number set
E17 Group control wiring error, Main indoor unit not sending signal for sub indoor units
E18 Group control wiring error, Main indoor unit not receiving signal for sub indoor units
E20 Auto addressing failed, No indoor units connected
E24 Auto addressing failed, Error on sub outdoor unit
E25 Auto addressing failed, Error on outdoor unit address setting
E26 Auto addressing failed, Quantity of main and sub outdoor units do not correspond to the number set on main outdoor unit P.C.B.
E29 Auto addressing failed, Sub outdoor unit not receiving comms for main outdoor unit
E31 Between units, Comms failure with MDC, does E31 remain after power is re instated? If so replace PCB. & power PCB
SENSOR FAULTS
F CODES
F01 Indoor Heat Exch inlet temp sensor failure (E1)
F02 Indoor Heat Exch freeze temp sensor failure (E2)
F03 Indoor Heat Exch outlet temp sensor failure (E3)
F04 Outdoor Discharge temp sensor failure (TD) or (DISCH1)
F05 Outdoor Discharge temp sensor failure (DISCH2)
F06 Outdoor Heat Exch temp sensor failure (C1) or (EXG1)
F07 Outdoor Heat Exch temp sensor failure (C2) or (EXL1)
F08 Outdoor Air temp sensor failure (TO)
F10 Indoor inlet temp sensor failure
F11 Indoor outlet temp sensor failure
F12 Outdoor Intake sensor failure (TS)
F13 GHP – Cooling water temperature sensor failure
F16 Outdoor High pressure sensor failure
F17 GHP – Cooling water temperature sensor fault
F18 GHP – Exhaust gas temperature sensor fault
F20 GHP Clutch coil temperature fault
F23 Outdoor Heat Exch temp sensor failure (EXG2)
F24 Outdoor Heat Exch temp sensor failure (EXL2)
F29 Indoor EEPROM error
F30 Clock Function (RTC) fault
F31 Outdoor EEPROM error
COMPRESSOR ISSUES
H CODES
H01 Compressor Fault, Over current (Comp1)
H02 Compressor Fault, Locked rota current detected (Comp1)
H03 Compressor Fault, No current detected (Comp1)
H05 Compressor Fault, Discharge temp not detected (Comp1)
H06 Compressor Fault, Low Pressure trip
H07 Compressor Fault, Low oil level
H08 Compressor Fault, Oil sensor Fault (Comp1)
H11 Compressor Fault, Over current (Comp2)
H12 Compressor Fault, Locked rota current detected (Comp2)
H13 Compressor Fault, No current detected (Comp2)
H15 Compressor Fault, Discharge temp not detected (Comp2)
H27 Compressor Fault, Oil sensor fault (Comp2)
H28 Compressor Fault. Oil sensor (connection failure)
H31 Compressor Fault. IPM trip (IMP current on temperature)
INCORRECT SETTINGS
L CODES
L01 Setting Error, Indoor unit group setting error
L02 Setting Error, Indoor/outdoor unit type/model miss-matched
L03 Duplication of main indoor unit address in group control
L04 Duplication of outdoor unit system address
L05 2 or more controllers have been set as ‘priority’ in one system – shown on controllers set as ‘priority’
L06 2 or more controllers have been set as ‘priority’ in one system – shown on controllers not set as ‘priority’
L07 Group wiring connected on and indvidual indoor unit
L08 Indoor unit address/group not set
L09 Indoor unit capacity code not set
L10 Outdoor unit capacity code not set
L11 Group contol wiring incorrect
L13 Indoor unit type setting error, capacity
L15 Indoor unit paring fault
L16 Water heat exch unit setting failure
L17 Miss-match of outdoor unit with different refrigerant
L18 4-way valve failure
L19 Water heat exch unit duplicated address
L21 Gas type setup failure
INDOOR UNIT PROBLEMS
P 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 deg C. 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, i/door temp rises in cooling or fulls in heating. Check wiring, coil, pcb output,
valave 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
Outdoor heat exchanger sensor failure
KHS3082 + CH3082
KHS3682 + CH3682
E01 serial comms error, mis-setting, RC is detecting error signal from IU, outdoor system address, indoor system address, or IU individual/main/sub setting it not set, auto address is not complete.
E02 serial comms error, mis-setting, RC is detecting error signal from IU, error in transmitting serial comm signal
E03 IU is detecting error signal from remote controller (and system controller)
E04 IU is detecting error signalled from OU, error in receiving serial comms signal
E05 IU is detecting error signalled from OU, error in transmitting serial comms signal
E06 OU is detecting error signalled from IU, error in receiving serial comms signal (inc unit qty verification failure)
E07 OU is detecting error signalled from IU, error in transmitting serial comms signal
E08 improper setting of IU or RC,IU address is duplicated
E09 improper setting of IU or RC, remote controller setting is duplicated
E10 IU is detecting error signalled from signal option, error in transmitting serial comms signal
E11 IU is detecting error signalled from signal option, error in receiving comms signal
E12 IU is detecting error signalled from signal option, because auto address setting is in process in a different system,
auto address is setting start is prohibited
E14 setting error, main unit duplication in simultaneous-operation multi control (detected by outdoor unit)
E15 automatic address setting failed, IU capacity too low
E16 automatic address setting failed, IU capacity too high
E17 an IU detected trouble in the signal from another IU, error in transmitting serial comms signal
E18 an IU detected trouble in the signal from another IU, error in receiving serial comms signal
E20 automatic address setting failed, no signal received from another IU
E24 Auto address error, Main OU is detecting error signal from sub OU
E25 Auto address error, of OU address setting
E26 Auto address error, the number of connected main and sub OU do not correspond to the number set at the main OU PCB
E29 auto address error, sub OU in receiving serial comm signal from main OU
F01 thermistor fault, indoor coil temp. sensor (E1)
F02 thermistor fault, indoor coil temp. sensor (E2)
F03 thermistor fault, indoor coil temp. sensor (E3)
F04 Outdoor thermistor open circuit, discharge TD1
F05 Outdoor thermistor open circuit, discharge TD2
F06 Outdoor thermistor open circuit, heat exchanger temperature C1
F07 Outdoor thermistor open circuit, heat exchanger temperature C2
F08 thermistor fault, outdoor air temp. sensor (air temp)
F10 thermistor fault, indoor suction air (room) temp sensor (TA)
F11 thermistor fault, indoor discharge air temp. sensor (BL)
F12 Outdoor thermistor open circuit, intake temperature TS
F16 thermistor fault, outdoor high pressure sensor
F17 thermistor fault, outdoor unit low pressure sensor
F22 thermistor fault, outdoor unit compressor 3 (constant speed) discharge temp sensor
F23 thermistor fault, outdoor No. 2 coil gas temp (EXG2)
F24 thermistor fault, outdoor No. 2 coil liquid temp. sensor (EXL2)
F25 thermistor fault, outdoor unit heat exchanger 3 gas temp. sensor
F26 thermistor fault, outdoor unit heat exchanger 3 liquid temp. sensor
F29 indoor EEPROM error
F31 outdoor EEPROM error
H01 AC1 compressor protection, overload current was detected
H02 AC1 compressor protection, lock current was detected
H03 AC1 compressor protection, no current was detected when the compressor was ON (CT1 circuit failure)
H05 the compressor discharge sensor has become disconnected (detected only for the AC1 compressor)
H06 low pressure switch activated on AC1, AC2 compressor
H07 protective device for compressor is activated, low oil level
H08 protective device for compressor is activated, compressor no. 1 oil sensor fault (disconnection, etc)
H11 AC2 compressor protection, overload current was detected
H12 AC2 compressor protection, lock current was detected
H13 AC2 compressor protection, no current was detected when the compressor was ON (CT2 circuit failure)
H15 the AC2 compressor discharge sensor has become disconnected
H21 outdoor protective device, overload current detected on compressor 3 (constant speed)
H22 outdoor protective device, lock current detected on compressor 3 (constant speed)
H23 outdoor protective device, no current detected when compressor 3 (constant speed) was on
H25 outdoor protective device, discharge temp. sensor trouble, Compressor 3 (constant speed)
H27 protective device for compressor is activated, compressor no. 2 oil sensor fault (disconnection, etc)
H28 connection failure of oil detection sensor, compressor no 3 (contestant speed)
H31 outdoor unit protection IPM trip (IPM current or temperature) HIC Alarm trouble
L02 mis-setting error, IU/OU type mismatch
L03 mis-setting error, main unit duplication in group control (detected by IU)
L04 mis-setting error, OU address duplication (system address)
L05 improper setting, there are 2 or more IU RC which have operation mode priority in refrigeration circuit,
priority set remote control
L06 improper setting, there are 2 or more IU RC which have operation mode priority in refrigeration circuit,
non-priority set remote control
L07 mis-setting error, group wiring connected for independent IU
L08 mis-setting error, IU address not set or group not set
L09 mis-setting error, IU capacity not set
L10 mis-setting error, OU capacity not set or setting error
L11 mis-setting error, miswiring in group control wiring
L13 mis-setting error, IU type setting error
L17 mis-match connection of outdoor units which have a different kind of refrigerant
L18 4-way valve operation failure
P01 indoor fan protective thermostat
P02 the AC compressor or AC1, AC2 compressor internal protection thermostat was activated:
or low voltage was detected
P03 discharge temperature trouble on outdoor
P04 High pressure sensor operation on AC, AC1 or AC2 compressor
P05 open phase detected, AC power trouble
P09 ceiling panel connection failure
P10 indoor float switch
P12 indoor fan overload (check for packaging on new cass install)
P16 compressor running failure resulting from missing phase in the compressor wiring etc
(start failure not caused by IPM or no GAS)
negative (defective) N phase
P17 incorrect discharge temperature (comp no 2)
P22 outdoor unit fan (missing phase in the HALL IC or other problem) causing the fan to lock
P26 overcurrent at time of compressor runs more than 80hz (DCCT secondary current or ACCT primary
current at a time other than when IPM has tripped)
P29 inverter for compressor is unusual (DC compressor does not operate)
P31 a flexible control error occurred
