Judgment Of Trouble By Every Symptom - Toshiba RAS-10YAV-E Service Manual

Toshiba air conditioner service manual
Hide thumbs Also See for RAS-10YAV-E:
Table of Contents

Advertisement

10-5. Judgment of Trouble by Every Symptom

10-5-1. Indoor Unit (Including Remote Controller)
(1) Power is not turned on (Does not operate entirely)
Turn off the power supply
once, and turn on it again
after 5 seconds passed.
NO
Is fuse of indoor control
board blown? (F01)
NO
Is temp. fuse blown?
NO
Is voltage indicated
NO
on rear of indoor control
board (DC12V or 5V)
normal?
Is DC310 to 340V
NO
applied to primary
To item of Pre-check or
side of SW trans.
trouble before power board
(T01) applied?
Is DC35V,
Turn "OFF" breaker
NO
DC12V, DC7V
once, and "ON"
applied to secondary
again after removing
side of SW trans.
motor.
(T01) applied?
YES
• Be sure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of
damage of the motor.
(2) Power is not turned on though Indoor P.C. board is replaced
<Confirmation procedure>
Turn on power supply.
Does operation lamp flash?
YES
Does the operation
lamp flash?
YES
Is the power supply
NO
turned on by pressing
[START/STOP] button
on remote controller?
YES
(No trouble)
Parts (R21, R109, SG01,
YES
C15, C01, DB01, C02,
IC01, T01) are defective.
YES
Connection of connecting
wire is defective.
YES
Is DC35V,
DC12V, DC7V
applied to secondary
side of SW trans.
(T01) applied?
NO
Is wired correctly to white and black
lead wires of terminal block?
– 46 –
Does send display
NO
of remote controller flash
normally, and is the signal
sent securely?
YES
Microcomputer
is defective.
SW trans.,
IC (IC01) for
power supply, ]
or fan motor
YES
NO
YES
Operation
Check Item
Considerable main cause
Measures
Item by symptom
Remote controller
error
Refer to the item of
Remote controller
check. (p.49)
Replace temp.
fuse set.
Check connecting
wire.
Replace main
board.
Motor is defective.
Correct wiring.
To item of "Power supply
is not turned on".

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

Ras-10ykv-eRas-13ykv-eRas-13yav-e

Table of Contents