Troubleshooting Based on Equipment Condition
Si21-205
132
Troubleshooting
1.11 Swing flap does not operate.
Applicable
Models
FFQ-B, FHQ-BU
Method of
Malfunction
Detection
Utilizes ON/OFF of the limit switch when the motor turns.
Malfunction
Decision
Conditions
When ON/OFF of the micro switch for positioning cannot be reversed even through the swing
flap motor for a specified amount of time (about 30 seconds).
Possible Causes
Faulty swing motor
Faulty micro switch
Faulty connector connection
Faulty indoor unit PC board
Troubleshooting
Connect correctly.
Connect correctly.
Does the flap swing?
Is continuity/no
continuity reversed?
YES
NO
X36A
: FFQ-B
X29A and X14A : FHQ-BU
NO
YES
YES
YES
Replace the indoor unit PC board.
Replace the swing motor assembly.
NO
220 - 240 VAC?
NO
YES
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(S2731)
Is
the limit
switch’s transfer
connector correctly
connected?
Turn the power supply off once
and back on, and check
whether the swing flap motor
swings when the power supply
is turned back on.
Disconnect X14A, turn the
power supply off once and back
on, and check if the limit switch
has continuity when the power
supply it turned back on.
Turn the power supply off once
and back on, and measure the
output voltage of connector
X36A (X29A) when the power
supply is turned back on.
Are
the connectors
correctly connected to
X36A, (X29A) and X14A
on the PC
board?
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...