07-007 W-2WAY_II_NA 1/23/07 6:09 PM Page 83

Possible cause of malfunction

 

Alarm

 

message

 

 

 

 

 

 

 

Activation of

Protective device in indoor unit

Thermal protector in indoor unit fan motor is activated.

<<P01>>

protective

is activated.

 

 

Improper wiring connections of ceiling panel.

<<P09>>

device

 

 

 

 

 

Float switch is activated.

<<P10>>

 

 

 

 

 

 

 

 

Operation of protective function of fan inverter.

P12

 

 

 

 

 

Protective device in outdoor unit

Compressor thermal protector is activated.

 

 

is activated.

Power supply voltage is unusual. (The voltage is more than 260 V

P02

 

 

or less than 160 V between L1 and L2 phase.)

 

 

 

 

 

 

 

Incorrect discharge temperature. (Comp. No. 1)

P03

 

 

 

 

 

 

High pressure switch is activated.

P04

 

 

 

 

 

 

Negative (defective) phase.

P05

 

 

O2 sensor (detects low oxygen level) activated

P14

 

 

Compressor running failure resulting from missing phase in the

P16

 

 

compressor wiring, etc. (Start failure not caused by IPM or no gas.)

 

 

 

 

 

 

 

 

 

Incorrect discharge temperature. (Comp. No. 2)

P17

 

 

Compressor 3 discharge temp. failure

P18

 

 

Outdoor unit fan motor is unusual.

P22

 

 

Overcurrent at time of compressor runs more than 80Hz (DCCT

P26

 

 

secondary current or ACCT primary current is detected at a time

 

 

other than when IPM has tripped.)

 

 

 

IPM trip (IPM current or temperature)

H31

 

 

Inverter for compressor is unusual. (DC compressor does not

P29

 

 

operate.)

 

 

 

 

 

 

 

Thermistor

Indoor thermistor is either open

Indoor coil temp. sensor (E1)

<<F01>>

fault

or damaged.

Indoor coil temp. sensor (E2)

<<F02>>

 

 

Indoor coil temp. sensor (E3)

<<F03>>

 

 

Indoor suction air (room) temp. sensor (TA)

<<F10>>

 

 

 

 

 

 

Indoor discharge air temp. sensor (BL)

<<F11>>

 

Outdoor thermistor is either

Comp. No. 1 discharge gas temp. sensor (DISCH1)

F04

 

open or damaged.

Comp. No. 2 discharge gas temp. sensor (DISCH2)

F05

 

 

Outdoor No. 1 coil gas temp. sensor (EXG1)

F06

 

 

 

 

 

 

Outdoor No. 1 coil liquid temp. sensor (EXL1)

F07

 

 

 

 

 

 

Outdoor air temp. sensor (AIR TEMP)

F08

 

 

Compressor intake port temperature sensor (RDT)

F12

 

 

High pressure sensor. Negative (defective) N phase.

F16

 

 

 

 

 

 

Low-pressure sensor failure

F17

 

 

Compressor 3 discharge temp. sensor failure (DISCH3)

F22

 

 

 

 

 

 

Outdoor No. 2 coil gas temp. sensor (EXG2)

F23

 

 

 

 

 

 

Outdoor No. 2 coil liquid temp. sensor (EXL2)

F24

 

 

 

 

EEP ROM on indoor unit PCB failure

 

F29

Protective

Protective device for compressor

EEP ROM on the main or sub outdoor unit PCB has failed.

F31

device for

No. 1 is activated.

Current is not detected when comp. No. 1 is ON.

H03

 

compressor is

 

Discharge gas temperature of the comp. No. 1 is not detected.

H05

activated

 

 

Temp. sensor is not seated at the sensor holder.

 

 

 

 

 

 

 

Protective device for compressor

Overload current is detected.

H11

 

No. 2 is activated.

Lock current is detected.

H12

 

 

Current is not detected when comp. No. 2 is ON.

H13

 

 

Discharge gas temperature of comp. No. 2 is not detected.

H15

 

 

 

 

 

Protective device for compressor

Compressor No. 3 current trouble (overcurrent)

H21

 

No. 3 is activated.

Compressor No. 3 current trouble (locked)

H22

 

 

Compressor No. 3 CT sensor disconnected or short circuit

H23

 

 

 

 

 

 

Compressor No. 3 discharge temp. sensor disconnected

H25

 

 

 

 

 

 

Low pressure switch is activated.

H06

 

Low oil level.

 

H07

 

Oil sensor fault.

Comp. No. 1 oil sensor

H08

 

(Disconnection, etc.)

Comp. No. 2 oil sensor

H27

 

 

Oil sensor (connection) failure

H28

Continued

83

Page 83
Image 83
Sanyo 85464359982001 installation instructions Alarm