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Si-71A
6.5
Indoor Unit Fan Motor Lock
$9 $9 $9 $9
Remote Controller
Display
Applicable Models
FH(Y), FAY, FUY
Method of
Detection by failure of signal for detecting number of turns to come from the fan motor
Malfunction
Detection
Malfunction
When number of turns can't be detected even when output voltage to the fan is maximum
Decision
Conditions
„ Failure of indoor unit fan motor
Supposed Causes
„ Broken or disconnected wire
„ Failure of contact
„ Failure of indoor unit PC board
Troubleshooting
Troubleshooting
Troubleshooting by Remote Controller Display / LED Display
Are
X20A and
NO
X26A properly
connected?
YES
With
X26A
unplugged
and the power
supply turned on,
NO
is there about 12
VDC between
pins 1 and
3 of
X26A?
YES
Connect correctly.
Indoor unit PC board
replacement
Check indoor unit fan motor
and motor wiring.
(SF007)
103
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Troubleshooting
