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-SM1404UT-E with RAV-SM2804AT8-E)

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

(Ex. Combination of RAV-SM1402BT-E and RAV-SM2804AT8-E: Outdoor unit only is 4 series.)

 

 

Operation of diagnostic function

 

 

 

 

 

 

 

 

 

Check code

 

 

 

 

 

 

 

 

 

 

 

Indoor unit

Cause of operation

Status of

Condition

 

Judgment and measures

 

 

air conditioner

 

 

before

after

 

 

 

 

 

 

 

 

 

3 series

4 series

 

 

 

 

 

 

 

 

 

 

 

 

F04

F04

Disconnection, short of discharge

Stop

Displayed when

1.

Check discharge temp. sensor (TD).

temp. sensor (TD)

error is detected

2.

Check outdoor P.C. board (MCC-1599).

 

 

 

 

 

 

 

 

 

 

 

F06

Disconnection, short of outdoor temp.

Stop

Displayed when

1.

Check temp. sensor (TE).

 

sensor (TE)

error is detected

2.

Check outdoor P.C. board (MCC-1599).

 

 

 

 

 

 

 

 

 

 

 

F07

Disconnection, short of outdoor temp.

Stop

Displayed when

1.

Check temp. sensor (TL).

 

sensor (TL)

error is detected

2.

Check outdoor P.C. board (MCC-1599).

F06

 

 

 

 

 

 

 

 

F12

Disconnection, short of suction temp.

Stop

Displayed when

1.

Check suction temp. sensor (TS).

 

 

sensor (TS)

error is detected

2.

Check outdoor P.C. board (MCC-1599).

 

 

 

 

 

 

 

 

 

 

 

F15

Miss-mounting of outdoor temp.

Stop

Displayed when

1.

Check temp. sensor (TE, TS).

 

sensor (TE, TS)

error is detected

2.

Check outdoor P.C. board (MCC-1599).

 

 

 

 

 

 

 

 

 

 

F08

F08

Disconnection, short of outside temp.

Continue

Displayed when

1.

Check outside temp. sensor (TO).

sensor (TO)

error is detected

2.

Check outdoor P.C. board (MCC-1599).

 

 

 

 

 

 

 

 

 

 

 

F13

Disconnection, short of heat sink

Stop

Displayed when

1.

Check outdoor P.C. board (MCC-1599).

 

temp. sensor (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 (MCC-1599).

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

Check outdoor P.C. board

 

 

Communication error between

 

Displayed when

 

(MCC-1596, MCC-1597, MCC-1599).

 

 

outdoor P.C. board MCU

Stop

 

 

 

L29

error is detected

2.

Connection check between CN802 of MCC-1599 and

 

 

 

 

 

 

 

 

CN504 of MCC-1597, and also connection check

 

 

 

 

 

 

between CN505 of MCC-1597 and CN851 of MCC-1596.

 

 

 

 

 

 

 

 

 

Heat sink overheat error

 

Displayed when

1.

Check screw tightening between PC. Board and heat

 

P07

Heat sink temp. sensor detected

Stop

 

sink and check radiator grease (MCC-1596).

L29

error is detected

 

 

over specified 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),

Stop

Displayed when

3.

Check PMV (Pulse Motor Valve).

 

Suction temp. sensor (TS) detected

error is detected

4.

Check broken pipe.

 

 

 

 

 

temperature over 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,

 

 

2.

Check outdoor heat exchanger (TE), suction temp.

 

P19

indoor heat exchanger temp. lowers

Stop

Displayed when

 

sensor (TS).

 

under the specified temp.

 

 

 

error is detected

3.

Check indoor heat exchanger sensor (TC).

 

 

After heating operation has started,

 

 

 

 

 

4.

Check 4-way valve coil.

 

 

outdoor heat exchanger / suction

 

 

 

 

 

 

5.

Check PMV (Pulse Motor Valve).

 

 

temp. rises over the specified temp.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor break down

 

 

1.

Check power supply voltage. (AC342 to 457V)

H01

H01

Although operation has started,

Stop

Displayed when

2.

Overload operation of refrigerating cycle

operation frequency decreases and

error is detected

 

 

 

 

 

 

 

 

 

operation stops.

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor lock

 

Displayed when

1.

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

H02

H02

* Over-current detection after

Stop

2.

Wiring error of compressor (Open phase)

error is detected

 

 

compressor start-up

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– 37 –

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Toshiba RAV-SM2242DT-TR, RAV-SM2802DT-E, RAV-SM2802DT-TR service manual Error mode detected by outdoor unit, After, Series

RAV-SM2802DT-TR, RAV-SM2242DT-TR, RAV-SM2802DT-E specifications

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