Judgment Of Trouble By Every Symptom - Toshiba RAS-M10GDV-E Service Manual

Toshiba ilmalämpöpumput myy, huoltaa ja asentaa: Jäähdytinpalvelu RefGroup Oy.

11-5. Judgment of Trouble by Every Symptom

11-5-1. Indoor Unit (Including Remote controller)
(1) Power is not turned on (Does not operate entirely)
<Preliminary check>
1. Is the supply voltage normal?
2. Are the connection of the primary side and the secondary side
of the power transformer inserted into the P .C. board?
3. Is the FUSE (F01) blown?
Turn the power off for
about 5 seconds
and then turn it on again.
Does the
OPERATION lamp flash?
NO
Is AC 220–240V
supplied to the primary side
of the power supply
transformer?
YES
Is AC12V supplied to the
secondary bottom side of
the power transformer?
YES
Is the voltage display
on the bottom side of the
P.C. board normal?
(DC12V or DC5V)
NO
DC12V, DC5V,
power supply circuit failure
( DB01, C02, Q01, Q02,
Q03, D02, IC02, F02
Does operation start when
YES
you push the START/STOP button
Does the transmission indicator
of the remote controller flash
normally, and is the transmission
Refer to above
NO
"Preliminary check".
( Or there is a defect before
the power transformer.
disconnected from the infrared
Is A/B select setting on the
remote controller correct?
Infrared rays receive parts
NO
Power transformer is failure.
YES
)
www.ilmalämpöpumput.com
of the remote controller?
NO
really performed?
YES
)
Is the lead wire
rays receive parts?
NO
YES
or P.C. board failure.
Microcomputer is failure.
– 47 –
Operations
Check items
Probable main causes
Remedies
Item by symptons
YES
Normal
NO
Remote controller is failure.
Replace the
remote controller
YES
Connect the wire properly
Match A/B select setting
NO
of the switch with setting
on the remote controller.
Replace infrared rays
receive parts or
the P.C. board
Replace the transformer.
Replace the P.C. board.
Replace the P.C. board.