Daikin Floor Standing Type F-Series User Manual

SiBE06-708_A Troubleshooting
Service Diagnosis 126
4.26 Signal Transmission Error on Outdoor Unit PCB
(50 Class Only)
Remote
Controller
Display
U7
Method of
Malfunction
Detection
Communication error between microcomputer mounted on the main microcomputer and PM1.
Malfunction
Decision
Conditions

The abnormality is determined when the data sent from the PM1 can not be received for 9
seconds.

The error counter is reset when the data from the PM1 can be successfully received.
Supposed
Causes

Defective outdoor unit PCB
Troubleshooting
(R7185)
Caution
NO
YES
Turn off the power and turn it on
again.
Error again?
Replace the outdoor unit
PCB.
Observe the operating
condition in long term.
The cause can be an
external factor other than
the malfunction.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.

Daikin Floor Standing Type F-Series Specifications

General

Brand	Daikin
Model	Floor Standing Type F-Series
Category	Air Conditioner
Language	English