Toshiba RAV-SP1100UT-E Service Manual page 45

Wireless sensor Wired remote
lamp display controller
Operation Timer Ready Check code
H01 Breakdown of compressor
● ◎ ●
• Displayed when error is detected
H02 Compressor does not rotate.
● ◎ ● • Over-current protective circuit operates after specified time
passed when compressor had been activated.
H03 Current detection circuit error
● ◎ ●
• Current value at AC side is high even during compressor-OFF.
• Phase of power supply is missed.
L29 Outdoor unit and other errors
• Communication error between CDB and IPDU
◎ ○ ◎ (Coming-off of connector)
• Heat sink temperature error
(Detection of temperature over specified value)
L31 Phase detection protective circuit operates.
◎ ○ ◎
(Normal models)
P03 Discharge temperature error
◎ ● ◎
• Discharge temperature over specified value was detected.
P04 High-pressure protection error by TE sensor
(Temperature over specified value was detected.)
◎ ● ◎
P22 Outdoor DC fan error
◎ ● ◎
P26 Inverter over-current protective circuit operates. (For a short time)
◎ ● ◎
Short voltage of main circuit operates.
P29 IPDU position detection circuit error
◎ ● ◎
F04 Coming-off, disconnection or short of outdoor temperature
◎ ◎ ○
sensor (TD)
F06 Coming-off, disconnection or short of outdoor temperature
◎ ◎ ○
sensor (TE/TS)
F08 Coming-off, disconnection or short of outdoor temperature
◎ ◎ ○
sensor (TO)
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.
Error mode detected by outdoor unit
Diagnostic function
Status of air
Cause of operation
conditioner
Stop
Stop
Stop
Stop
Operation continues.
(Compressor stops.)
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Operation continues.
Judgment and measures
Condition
Displayed when 1. Check power voltage. AC200V±20V
error is detected
2. Overload operation of refrigerating cycle
3. Check current detection circuit at AC side.
Displayed when 1. Trouble of compressor (Compressor lock, etc.) : Replace compressor.
error is detected
2. Defective cabling of compressor (Phase missing)
3. Phase-missing operation of power supply (3-phase model)
Displayed when 1. Compressor immediately stops even if restarted. : Check IPDU.
error is detected
2. Phase-missing operation of power supply
Check 3-phase power voltage and cables.
Displayed when 1. Check cables of CDB and IPDU.
error is detected
2. Abnormal overload operation of refrigerating cycle
Displayed when 1. Check power phase order (Reversed phase)/phase missing.
error is detected
2. Check outdoor P.C. board.
Displayed when 1. Check refrigerating cycle. (Gas leak)
error is detected
2. Trouble of PMV
3. Check Td sensor.
Displayed when 1. Overload operation of refrigerating cycle
error is detected
2. Check outdoor temperature sensor (TE).
3. Check outdoor CDB P .C. board.
Displayed when 1. Defective detection of position
error is detected
2. Over-current protective circuit of outdoor fan driving unit operates.
3. Lock of outdoor fan
4. Check outdoor CDB P .C. board.
Displayed when 1. Inverter immediately stops even if restarted. : Compressor motor rare short
error is detected
2. Check IPDU. : Cabling error
Displayed when 1. Position detection circuit operates even if operating compressor by removing
error is detected 3P connector. : Replace IPDU.
Displayed when 1. Check outdoor temperature sensor (TD).
error is detected 2. Check outdoor CDB P .C. board.
Displayed when 1. Check outdoor temperature sensor (TE/TS).
error is detected 2. Check outdoor CDB P .C. board.
Displayed when 1. Check outdoor temperature sensor (TO).
error is detected
2. Check outdoor CDB P .C. board.
◎ : Flash, 〇 : Go on, ● : Go off