Fujitsu AOY90 User Manual

ERROR
CONTENTS
ERROR CAUSE
REMEDY
ERROR
CODE
1. Generation condition.
Communication between
indoor unit control PC board
and indoor unit
communication PC board
not performed normally.
2. Corresponding operation.
1) Current operation continued,
error display to standard
wired remote controller, and
display to indoor unit LED.
2) If error continues for 90
seconds after generation,
a new transmission error
(1F) is output.
3. Reset condition.
Normal communication
restored between indoor unit
control PC and indoor unit
communication PC board.
Error generated at outdoor unit
in same refrigerant system.
21 Parallel commu-
nication error
1. When power turned off, then turned
back on:
1) If error not generated again, PC board
is normal. Therefore, remove noise
sources near indoor unit.
2) If error generated again, check
following, in addition to removing noise
sources.
2. Check indoor communication PC
board insertion.
3. Replace PC boards in following order,
and check operation.
(1) Indoor unit communication PC board.
(2) Indoor unit control PC board.
1. Effect of extraneous noise.
32
Outdoor unit
error
See "Outdoor unit troubleshooting".Outdoor unit faulty.
2. Indoor unit communication
board insertion faulty.
3. PC board faulty.
– 95 –

Fujitsu AOY90 Specifications

General

Brand	Fujitsu
Model	AOY90
Category	Air Conditioner
Language	English