Mitsubishi Electric SVZ-KP12NA Manuel D'installation page 52

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IR wireless remote
Beeper sounds/
controller
INDICATOR lamp
(Number of times)
Beeper sounds/
OPERATION
INDICATOR lamp flashes
(Number of times)
11
12
13
14
*1 If the beeper does not sound again after the initial two beeps to confirm the self-check start
signal was received and the OPERATION INDICATOR lamp does not come on, there are no error
records.
*2 If the beeper sounds three times continuously "beep, beep, beep (0.4 + 0.4 + 0.4 sec.)" after the
initial two beeps to confirm the self-check start signal was received, the specified refrigerant
address is incorrect.
• On IR wireless remote controller
The continuous buzzer sounds from receiving section of indoor unit.
Blink of operation lamp
• On wired remote controller
Check code displayed on the LCD
• If the unit cannot be operated properly after the above test run has been performed, refer to the following
table to remove the cause.
Wired remote controller
PLEASE WAIT
For about 2 minutes follow-
ing power-on
PLEASE WAIT →
Error code
After about 2 minutes has
Display messages do not
expired following power-on
appear even when opera-
tion switch is turned ON
(operation lamp does not
light up).
On the IR wireless remote controller with conditions above, following phenomena takes place.
• No signals from the remote controller are accepted
• OPE lamp is blinking
• The buzzer makes a short ping sound
© 2020 Mitsubishi Electric US, Inc.
SVZ-KP12,18, 24, 30, 36NA
OPERATION
flashes
Check code
U9, UH
Abnormality such as overvoltage or voltage shortage and abnormal and synchronous signal
Others
Other errors (Refer to the technical manual for the outdoor unit.)
Symptom
LED 1, 2 (PCB in
outdoor unit)
After LED 1, 2 are lighted, LED 2 is
turned off, then only LED 1 is ligh-
ted. (Correct operation)
Only LED 1 is lighted. → LED 1, 2
blink.
Only LED 1 is lighted. → LED 1, 2
blinks twice, LED 2 blinks once.
52
Symptom
to main circuit/Current sensor error
– For about 2 minutes after power-on, operation of the
remote controller is not possible due to system start-
up. (Correct operation)
– Connector for the outdoor unit's protection device is
not connected.
– Reverse or open phase wiring for the outdoor unit's
power terminal block (L1, L2, L3)
– Incorrect wiring between indoor and outdoor units (in-
correct polarity of S1, S2, S3)
– Remote controller wire short
Specifications are subject to change without notice.
Re-
mark
Cause

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