Failure Code [Daz9Kq] A/C Model Selection Abnormality - Komatsu PC200-8M0 Shop Manual

303 Troubleshooting by failure code, Part 3

Failure code [DAZ9KQ] A/C Model Selection Abnormality

Failure code [DAZ9KQ] A/C Model Selection Abnormality
Action
Failure code
level
– DAZ9KQ
q
Model registered in the machine monitor and air conditioner controller differs.
Detail of failure
(Machine monitor or air conditioner controller has been replaced with a wrong part.)
Action of con-
troller
Problem on
q
Machine does not operate normally
machine
q
Model code registered in air conditioner controller can not be checked by using monitoring function.
q
Model codes registered in machine monitor can be checked by using monitoring function. (Code:
00500)
q
Related infor- Air conditioner control data (series and model) in the machine monitor can be checked by using
mation monitoring function. (Code: 55200)
q
Air conditioner control data (series and model) in the air conditioner controller can be checked by
using monitoring function. (Code: 55201) (It is normal if control data is 01 (which means PC).)
q
Method of reproducing failure code: Turn starting switch to ON position.
Cause
1 Defective machine monitor
2 Defective air conditioner controller
PC200, 200LC, 220, 220LC-8M0
Air Conditioner Model Selection Abnormality
Failure
(Machine monitor system)
Procedure, measuring location, criteria and remarks
Defective machine monitor
(a different model is registered)
Defective air conditioner controller
(a different model is registered)
SEN06135-00
33
40-303