York CIDH018B21S, Service Manual

Page: 67 / 186

SM-18001-rev.1
3-45
TROUBLESHOOTING
Event Cause Check Item
Action
(Turn OFF Main Switch )
“Motion Sensor
is activated” is
indicated on Wired
Controller LCD.
Reaction rate is always
100%.
Check the “Check Mode 1:
q1” on the wired controller.
↓
Check if there is motion
sensor with “Reaction rate
always 100%”.
True: Replace motion
and radiation sensors
PCB.
False: Replace control
PCB.
Operation Stops
though Someone is
Present.
Reaction rate is always
0%.
Operate under detection
area of motion sensor and
check the “Check Mode 1:
q1” on the wired controller.
↓
Check if there are motion
sensors with “Reaction
rate always 0%”.
True: Replace motion
and radiation sensors
PCB.
Not Operating
in “Avoid Air” or
“Receive” though
Someone is
Present.
False: Sensitivity may
be low. Adjust the
[Optional Function: K6]
to [01: High Sensitivity]
and see if there are any
changes. If the symptom
continues, replace
motion and radiation
sensors PCB.
Operation Continues
though No One is
Present.
Motion sensor setting
is disabled on the wired
controller.
Check setting on the wired
controller.
Correct the setting.
Motion sensor setting
of No presence is set to
other than “Stop” on the
wired controller.
Check setting on the wired
controller.
Correct the setting.
There are heat source
other than human in the
detecting area of the
sensor.
Check heat source
(a moving object whose
temperature is different
from surroundings).
Remove it.
There is sensor with high
sensitivity.
Stop the operation from the
wired controller, no motion
in the detection area of the
motion sensor and check
the “Check Mode 1: q1”.
↓
Check if there is no motion
sensor with “Reaction rate
0%”.
True: Replace motion
and radiation sensors
PCB.
False: No problem.
Adjust the [Optional
Function: K6] to [02: Low
Sensitivity] and see if
there are any changes. If
the symptom continues,
replace motion and
radiation sensors PCB.
Operating in “Avoid Air” or “Receive”.
Operating in “Avoid
Air” or “Receive”
though No One is
Present.
15 minutes has not
passed since someone
left the room.
Check the louver operation
after no one has been in
the room for more than 15
minutes.
Not operating in “Avoid
Air” or “Receive”. This is
normal operation.
There are heat sources
other than human in the
detection area of the
sensor.
Check heat source
(a moving object whose
temperature is different
from surroundings).
Remove it.
“Radiation Sensor is
activated” is indicated
on Wired Controller
LCD.
Radiation sensor element
is abnormal.
Replace motion and
radiation sensors PCB.
Abnormalities of Devices
(Motion and Radiation Sensor)
Other
Abnormalities