Toshiba MMW-AP0481CHQ-E Service Manual page 70

Check code Check code name
PMV2 trouble
(H-HWM)
[A07]
Are characteristics
of low-pressure
(PS) sensor
normal ?
YES
Are characteristics
of TS sensor
normal ?
YES
Is H-HWM PMV2
normal ?
YES
Is H-HWM I/F P.C.
board normal ?
YES
H-HWM TS sensor trouble
H-HWM low-pressure (PS) sensor trouble
H-HWM PMV2 trouble
H-HWM I/F P.C. board trouble
Cascade heat exchanger clogging
NO
NO
NO Is connector
connection
or coil normal ?
Is there clogging
on whole valve ?
NO
Cause
NO
YES
YES
NO
– 70 –
Exchange low-pressure
(PS) sensor.
Exchange TS sensor.
Repair failure parts.
Repair PMV body.
Replace H-HWM I/F P.C.
board.
Cascade heat exchanger
clogging.