Toshiba MMU-AP0151MH Cassette Player User Manual


 
55
Check code
Main
remote
controller
H03
H04
H06
Outdoor 7-segment display
Check code
H03
H04
H06
Auxiliary code
01: Compressor 1 side
02: Compressor 2 side
Detected
position
IPDU
I/F
I/F
Check code name
Current detection
circuit system error
Compressor 1 case
thermo operation
Low-pressure
protective operation
Status
All stop
All stop
All stop
Error detection condition
While header compressor stopped, current flowed
more than the specified current and was detected.
Compressor 1 case thermostat performed
protective operation.
Low-pressure Ps detected operation lower than
0.02MPa.
Check item (position)
Check cabling of current detection circuit system.
Check outdoor P.C. board (IPDU) error.
Check compressor 1 case thermo circuit. (Connector, cable, P.C. board)
Check full opening of service valve. (Gas and liquid side)
Check outdoor PMV clogging. (PMV1, 2, 3)
Check SV41 circuit leakage.
Check miscabling/misinstallation of SV41 and SV42.
Check valve open status of indoor PMV.
Check 4-way valve error.
Check refrigerant shortage.
Check SV5 leak.
Check SV11 circuit. (Wiring, OFF at one side only)
Check mispiping of discharge gas/suction gas main pipe.
Check Flow selector unit.
Check leakage of SVD valve and SVS valve.
(Check leakage of SVDD valve and SVSS.)
Check mispiping of FS unit connecting pipe (Suction gas/Discharge gas),
wiring between FS unit and indoor unit, and connection of connectors.
Check miswiring of SVS/SVD valves.
Check full opening of service valve.
(Discharge gas, suction gas and liquid side)
Check outdoor PMV clogging. (PMV1, 2)
Check SV2 circuit and SV4 circuit error.
Check low-pressure Ps sensor error.
Check indoor air filter clogging.
Check valve open of indoor PMV.
Check refrigerant pipe clogging.
Check outdoor fan operation.
(All heating, mainly heating, part cooling operation)
Check refrigerant shortage.
Check clogging of circuit at auxiliary heat exchanger side.
(PMV3, SV12, check valve)
Check 4-way valve error. (Reversal error)
Check mispiping of discharge gas/suction gas main pipe.
Check Flow selector unit.
Check miswiring of discharge gas/suction gas pipe to FS unit.
Check wiring between FS unit and indoor unit.
Check miswiring of SVD/SVS valves, misinstallation of coil.
Check opened status of SVS valve.