Error mode detected by outdoor unit

The check code has been ramified from 4 series and after

The ramified check code is displayed only when both the indoor unit and the outdoor unit are 4 series and after. (Ex. Combination of RAV-SM1404BT-E with RAV-SP1404AT-E)

When the outdoor unit is 3 series and before, the conventional check code is displayed.

(Ex. Combination of RAV-SM1404BT-E and RAV-SM1403AT-E: Indoor unit only is 4 series.)

 

Operation of diagnostic function

 

 

 

 

 

 

 

 

 

Check

 

 

 

 

 

code

Cause of operation

Status of

Condition

 

Judgment and measures

 

 

Indoor

air conditioner

 

 

 

 

 

 

 

 

 

 

 

unit

 

 

 

 

 

 

 

 

 

 

 

F04

Disconnection, short of discharge temp. sensor

Stop

Displayed when

1.

Check discharge temp. sensor (TD).

(TD)

error is detected

2.

Check outdoor P.C. board.

 

 

 

 

 

 

 

 

F06

Disconnection, short of outdoor temp. sensor

Stop

Displayed when

1.

Check temp. sensor (TE).

(TE)

error is detected

2.

Check outdoor P.C. board.

 

 

 

 

 

 

 

 

F07

Disconnection, short of outdoor temp. sensor

Stop

Displayed when

1.

Check temp. sensor (TL).

(TL)

error is detected

2.

Check outdoor P.C. board.

 

 

 

 

 

 

 

 

F12

Disconnection, short of suction temp. sensor

Stop

Displayed when

1.

Check suction temp. sensor (TS).

(TS)

error is detected

2.

Check outdoor P.C. board.

 

 

 

 

 

 

 

 

F15

Miss-mounting of outdoor temp. sensor (TE, TS)

Stop

Displayed when

1.

Check temp. sensor (TE, TS).

 

error is detected

2.

Check outdoor P.C. board.

 

 

 

 

 

 

 

 

 

 

 

 

 

F08

Disconnection, short of outside temp. sensor

Continue

Displayed when

1.

Check outside temp. sensor (TO).

(TO)

error is detected

2.

Check outdoor P.C. board.

 

 

 

 

 

 

 

 

F13

Disconnection, short of heat sink temp. sensor

Stop

Displayed when

1.

Check outdoor P.C. board.

(TH)

error is detected

 

(Q201 is incorporated in TH sensor.)

 

 

 

 

 

 

 

 

 

F31

Outdoor P.C. EEPROM error

Stop

Displayed when

1.

Check outdoor P.C. board.

error is detected

 

 

 

 

 

 

 

 

 

 

 

 

 

L10

Unset jumper of service P.C. board

Stop

Displayed when

1.

Outdoor service P.C. board

error is detected

 

Check model type setting jumper wire.

 

 

 

 

 

 

 

 

 

 

L29

Communication error between outdoor P.C.

Stop

Displayed when

1.

Check outdoor P.C. board

board MCU

error is detected

2.

Connection check for each P.C. board.

 

 

 

 

 

 

 

 

 

 

 

 

 

Heat sink overheat error

 

Displayed when

1.

Check screw tightening between PC. Board and heat

P07

Heat sink temp. sensor detected over specified

Stop

 

sink and check radiator grease.

error is detected

 

 

temperature.

 

2.

Check heat sink blast path.

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

Check gas leak, recharge

 

Detection of gas leak

 

 

2.

Check full open of service valve.

P15

Discharge temp. sensor (TD), Suction temp.

Stop

Displayed when

3.

Check PMV (Pulse Motor Valve).

 

sensor (TS) detected temperature over

 

error is detected

4.

Check broken pipe.

 

specified temp.

 

 

 

 

 

5.

Check discharge temp. sensor (TD), suction temp.

 

 

 

 

 

 

 

 

 

sensor (TS).

 

 

 

 

 

 

 

4-way valve inverse error

 

 

1.

Check operation of 4-way valve.

 

After heating operation has started, indoor

 

 

2.

Check outdoor heat exchanger (TE), suction temp.

 

heat exchanger temp. lowers under the

 

Displayed when

 

sensor (TS).

P19

specified temp.

Stop

 

 

error is detected

3.

Check indoor heat exchanger sensor (TC).

 

After heating operation has started, outdoor

 

 

 

 

4.

Check 4-way valve coil.

 

heat exchanger / suction temp. rises over the

 

 

 

 

 

5.

Check PMV (Pulse Motor Valve).

 

specified temp.

 

 

 

 

 

 

 

 

 

Compressor break down

 

Displayed when

1.

Check power supply voltage.

H01

Although operation has started, operation

Stop

2.

Overload operation of refrigerating cycle

error is detected

 

frequency decreases and operation stops.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor lock

 

Displayed when

1.

Trouble of compressor (Lock, etc.): Replace compressor.

H02

* Over-current detection after compressor

Stop

2.

Wiring error of compressor (Open phase)

error is detected

 

start-up

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– 49 –

Page 49
Image 49
Toshiba CONCEALED DUCK TYPE, CEILING TYPE service manual Error mode detected by outdoor unit, Air conditioner

CONCEALED DUCK TYPE, CEILING TYPE specifications

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