Toshiba RAV-SM562BT-E Service Manual/Integration page 82

Wireless sensor Wired remote
lamp display controller
Operation Timer Ready Check code
l
¥ ¥
Unset indoor capacity
L09
Outdoor unit and other errors
• Communication error between CDB and IPDU
l l
¥
L29 (Coming-off of connector)
• Heat sink temperature error
(Detection of temperature over specified value)
¥ ¡ ¥ Abnormal outside interlock input
L30
¥ ¡ ¥ Phase detection protective circuit operates. (Normal models)
L31
Fan motor thermal protection
No check code is displayed.
Discharge temperature error
l
¥ ¥
P03 • Discharge temperature over specified value was detected.
High-pressure protection error by TE sensor
l
¥ ¥
(Temperature over specified value was detected.)
P04
Float switch operation
l
¥ ¥ • Disconnection, coming-off, defective float switch contactor of float circuit
P10
Indoor DC fan error
l
¥ ¥
P12
Error in 4-way valve system
l
¥ ¥
P19 • Indoor heat exchanger temperature lowered after start of heating operation.
Outdoor DC fan error
l
¥ ¥
P22
l
¥ ¥ Inverter over-current protective circuit operates. (For a short time)
P26
Short voltage of main circuit operates.
l
¥ ¥ IPDU position detection circuit error
P29
l Own unit stops while warning is output to other indoor units.
¥ ¥
P31
For an error mode detected in outdoor unit, the fan operates because sub unit of a group operation does not communicate with the outdoor unit.
Diagnostic function
Cause of operation
Operation continues.
(Compressor stops.)
(Automatic reset)
(Automatic reset)
Status of air
Condition
conditioner
Displayed when 1. Set the indoor capacity. (DN=I1)
Stop
error is detected
1. Check cables of CDB and IPDU.
2. Abnormal overload operation of refrigerating cycle
Displayed when
Stop
error is detected
1. Check outside devices.
Displayed when
Stop
error is detected
2. Check indoor P.C. board.
1. Check power phase order (Reversed phase)/phase missing.
Displayed when
error is detected
2. Check outdoor P.C. board.
1. Check thermal relay of fan motor.
Displayed when
Stop
error is detected
2. Check indoor P.C. board.
1. Check refrigerating cycle. (Gas leak)
Displayed when
Stop 2. Trouble of PMV
error is detected
3. Check Td sensor.
1. Overload operation of refrigerating cycle
Displayed when
Stop 2. Check outdoor temperature sensor (TE).
error is detected
3. Check outdoor CDB P.C. board.
1. Defect of drain pump
2. Clogging of drain pump
Displayed when
Stop
error is detected
3. Check float switch.
4. Check indoor P.C. board.
1. Defective detection of position
2. Over-current protective circuit of indoor fan driving unit operates.
Displayed when
Stop
error is detected 3. Lock of indoor fan
4. Check indoor P.C. board.
1. Check 4-way valve.
Stop Displayed when
2. Check indoor heat exchanger (TC/TCJ) sensor.
error is detected
3. Check indoor P.C. board.
1. Defective detection of position
2. Over-current protective circuit of outdoor fan driving unit operates.
Displayed when
Stop
error is detected 3. Lock of outdoor fan
4. Check outdoor CDB P.C. board.
1. Inverter immediately stops even if restarted. : Compressor motor rare short
Displayed when
Stop
error is detected
2. Check IPDU. : Cabling error
1. Position detection circuit operates even if operating compressor by removing
Displayed when
Stop
3P connector. : Replace IPDU.
error is detected
1. Judge sub unit while master unit is in [E03], [L03], [L07], [L08].
Stop (Sub unit) Displayed when
error is detected
2. Check indoor P.C. board.
l
¥ ¡
: Flash, : Go on, : Go off
Judgment and measures