How To Diagnose Trouble In Outdoor Unit - Toshiba RAS-18N3KVR-E Service Manual

11-8. How to Diagnose Trouble in Outdoor Unit

Check Power Supply
(Voltage Rate ±10%)
YES
Turn OFF power
supply.
Remove connector
of compressor.
Check 25A
fuse (F01)
failure?
YES
Turn ON power
Supply.
Check terminal
Voltage of electrolytic
capacitor are in
(Voltage Rate
±10%) x 1.414?
YES
Turn ON the unit
by remote controller
and wait for 3 min.
(Cooling : 17°C)
A
NO
NO
(damage, burn,.. Etc.)
Replace
control board.
NO
Replace
control board.
Check component
parts of control board
assembly by visual.
YES
Replace
fuse.
– –
81
FILE NO. SVM-12070
• Connect discharge
resistance (approx. 100Ω
40W) or soldering iron
(plug) between +, –
terminals of the electro-
lytic capacitor (500µF )
of C14 (with printed
CAUTION HIGH VOLTAGE)
on P.C. board.
Discharging position
(Discharging period
10 seconds or more)
Plug of
soldering
iron