Mitsumi electronic PLA-ABA installation manual Test run, Output pattern B

7. Test run

•Refer to the following tables for details on the check codes. (Wireless remote controller) [Output pattern A]

Beeper sounds Beep Beep Beep Beep Beep Beep Beep

OPERATION INDICATOR lamp blinking pattern

1st

2nd

3rd

nth

1st

2nd · · · Repeated

Off

On

On

On

On

Off

On

On

Self-check

Approx. 2.5 sec.

0.5 sec.

0.5 sec.

0.5 sec.

0.5 sec.

Approx. 2.5 sec.

0.5 sec.

0.5 sec.

starts

(Start signal

Number of blinks/beeps in pattern indicates the check

Number of blinks/beeps in pattern indicates

received)

code in the following table (i.e., n=5 for “P5”)

the check code in the following table

[Output pattern B]

Beeper sounds	Beep
OPERATION
INDICATOR
lamp blinking		Off
pattern
	Self-check	Approx. 2.5 sec.
	starts
	(Start signal
	received)

Beep

Beep

Beep

Beep

Beep

Beep

1st

2nd

3rd

nth

1st

2nd · · · Repeated

On

On

On

On

On

Off

On

On

On

Approx. 3 sec.

0.5 sec.

0.5 sec. 0.5 sec.

0.5 sec.

Approx. 2.5 sec.

Approx. 3 sec.

0.5 sec.

0.5 sec.

Number of blinks/beeps in pattern indicates the check

Number of blinks/beeps in pattern indicates

code in the following table (i.e., n=5 for “U2”)

the check code in the following table

[Output pattern A]	Errors detected by indoor unit
Wireless remote controller		Wired remote
		controller
Beeper sounds/OPERATION			Symptom	Remark
INDICATOR lamp blinks		Check code
(Number of times)
1		P1	Intake sensor error
2		P2	Pipe (TH2) sensor error
		P9	Pipe (TH5) sensor error
3		E6, E7	Indoor/outdoor unit communication error
4		P4	Drain sensor error / Float switch connector open
5		P5	Drain pump error
		PA	Forced compressor error
6		P6	Freezing/Overheating protection operation
7		EE	Communication error between indoor and outdoor units
8		P8	Pipe temperature error
9		E4	Remote controller signal receiving error
10		—	—
11		—	—
12		Fb	Indoor unit control system error (memory error, etc.)
No sound		E0, E3	Remote controller transmission error
No sound		E1, E2	Remote controller control board error
No sound		– – – –	No corresponding
[Output pattern B]	Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wireless remote controller		Wired remote
		controller
Beeper sounds/OPERATION			Symptom	Remark
INDICATOR lamp blinks		Check code
(Number of times)
1		E9	Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
2		UP	Compressor overcurrent interruption
3		U3, U4	Open/short of outdoor unit thermistors
4		UF	Compressor overcurrent interruption (When compressor locked)
5		U2	Abnormal high discharging temperature/49C worked/insuffi cient refrigerant
6		U1, Ud	Abnormal high pressure (63H worked)/Overheating protection operation
7		U5	Abnormal temperature of heat sink	For details, check the LED
8		U8	Outdoor unit fan protection stop	display of the outdoor controller
9		U6	Compressor overcurrent interruption/Abnormal of power module	board.
10		U7	Abnormality of super heat due to low discharge temperature
11		U9, UH	Abnormality such as overvoltage or voltage shortage and abnormal
			synchronous signal to main circuit/Current sensor error
12		—	—
13		—	—
14		Others	Other errors (Refer to the technical manual for the outdoor unit.)

*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 specifi ed refrigerant address is incorrect.

•On wireless remote controller

The continuous buzzer sounds from receiving section of indoor unit. Blink of operation lamp

•On wired remote controller Check code displayed in the LCD.

14