Self-Diagnosis By Remote Controller - Carrier 42NQV009E Service Manual

10-4. Self-Diagnosis by Remote Control
(Check Code)
(1) If the lamps are indicated as shown B to G in Table
10-3-1, exchanger the self-diagnosis by the remote
control.
(2) When the remote control is set to the service
mode, the indoor controller diagnoses the
operation condition and indicate the information of
the self-diagnosis on the display of the remote
control with the check codes. If a fault is detected,
all lamps on the indoor unit will blink at 5Hz and it
will beep for 10 seconds (Pi, Pi, Pi....). The timer
lamp usually blinks (5Hz) during the self-diagnosis.
10-4-1. How to use remote control in service mode
START/STOP
SWING
MODE
ON OFF
• Alphanumeric characters are used for the check code.
is 5.
is A.
is C.
TEMP.
FIX FAN
ECO
RST CHK
TIMER
SET CLR
is 6.
is B.
is D.
(1) Press [CHK] button with a tip of pencil to set the
remote control to the service mode.
• "00" is indicated on the display of the remote
control.
• The timer lamp on the indoor unit blinks
continuously. (5 times per 1 sec.)
(2) Press [8TEMP.] button.
If there is no fault with a code, the indoor unit will
beep once (Pi) and the display of the remote
control will change as follows:
00 01
• Check the unit with all 35 check codes (00 to 22).
as shown in Table 10-4-1.
• Press [9TEMP.] button to change the check
code backwards.
If there is a fault, the indoor unit will beep for 10
seconds (Pi, Pi, Pi...).
Note the check code on the display of the remote
control.
• 2-digits alphanumeric will be indicated on the
display.
• All lamps on the indoor unit will blink. (5 times
per 1 sec.)
(3) Press [CLR] button. After service finish for clear
service code in memory.
• "7F" is indicated on the display of the remote
control.
(4) Press [START/STOP] button to release the service
mode.
• The display of the remote control returns to as it
was before service mode was engaged.
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FILE NO. SVM-07018-1
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