Auto Grille Unit Error - Daikin VRV RXYMQ-A Series Service Manual

SiME332106E

5.11 Auto Grille Unit Error

Applicable FXFSQ-AR (when auto grille panel BYCQ125EBSF is installed)
Models
AH-12
Error Code
Method of Error
This error is determined when an abnormal signal from the auto grille kit is detected.
Detection
Error Decision
Any of the following conditions is established while the grille is elevating.
Conditions  The storage detection limit switch does not detect anything for a prescribed time while the
 The position detection limit switch does not detect anything for a prescribed time while the
 The position detection limit switch detects a position for less than one second while the grille
Supposed  A large load on the grille
 Tangled wire
Causes
 Defective motor
 Defective limit switch
Troubleshooting
Part 6 Service Diagnosis
grille is moving upward.
grille is moving upward.
is moving downward.
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Is there any
abnormality on appearance of
the grille?
NO
A large load
is applied to the grille.
NO
A wire is tangled.
NO
Is the drive unit normal?
NO
YES
YES
YES
YES
Troubleshooting by Error Code
Check the items below.
• The grille is elevating while
tilted in a horizontal direction.
• The grille is caught by
something.
• The grille is not mounted.
o After correcting any of the
items above, perform
elevating operation again.
Eliminate the load on the grille.
o Perform elevating operation
again.
Correct the winding of wire.
Normal.
Check the limit switch, gear,
motor of the drive unit.
177