Mitsubishi PUHZ-RP60VHA Service Manual Page 98
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- TROUBLESHOOTING
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98
<Outdoor unit operation monitor function>
[When optional part ‘A-Control Service Tool(PAC-SK52ST)’ is connected to outdoor controller board(CNM)]
Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by
controlling DIP SW2 on ‘A-Control Service Tool’.
SW2 setting
1
ON
23456
Display detail
Explanation for display Unit
Operation indicator SW2 : Indicator change of self diagnosis
<Digital indicator LED1 working details>
(Be sure that the 1 to 6 in the SW2 are set to OFF.)
(1) Display when the power supply ON
When the power supply ON, blinking displays by turns.
Wait for 4 minutes at the longest.
(2) When the display lights (Normal operation)
1Operation mode display.
1
ON
23456
(Initial setting)
SW2
1 second
interval
LED1
(Lighting)
Display Operation Model
The tens digit : Operation mode
The ones digit : Relay output
O
C
H
d
Display
0
1
2
3
4
5
6
7
8
A
Compressor
Warming-up
Compressor
4-way valve
Solenoid valve
—
—
—
—
ON
ON
ON
ON
—
—
—
—
—
—
—
—
—
—
ON
ON
—
—
ON
ON
—
—
ON
ON
—
ON
—
ON
—
ON
—
ON
—
ON
—
—
OFF / FAN
COOLING / DRY w
HEATING
DEFROSTING
2Display during error postponement
Postponement code is displayed when
compressor stops due to the work of
protection device.
Postponement code is displayed while
error is being postponed.
wC5 is displayed during replacement operation.
<For RP60/71VHA3, RP100-RP140>
(3) When the display blinks
Inspection code is displayed when compressor stops due to the work of protection devices.
Display
Contents to be inspected (When power is turned on)
F5
E8
E9
EA
Eb
EC
E0~E7
63H connector(yellow) is open.
Indoor/outdoor communication error (Signal receiving error) (Outdoor unit)
Indoor/outdoor communication error (Transmitting error) (Outdoor unit)
Miswiring of indoor/outdoor unit connecting wire, excessive number of indoor units (4 units or more)
Miswiring of indoor/outdoor unit connecting wire(converse wiring or disconnection)
Startup time over
Communication error except for outdoor unit
Display
Inspection unit
0
1
2
3
Outdoor unit
Indoor unit 1
Indoor unit 2
Indoor unit 3
Display
Contents to be inspected (During operation)
U1
U2
U3
U4
U5
U6
U7
U8
Ud
UF
UH
UL
UP
P1~P8
A0~A7
Abnormal high pressure (63H worked)
Abnormal high discharging temperature, shortage of refrigerant
Open/short circuit of discharging thermistor(TH4)
Open/short of outdoor unit thermistors(TH3, TH6, TH7 and TH8)
Abnormal temperature of heatsink
Abnormality of power module
Abnormality of superheat due to low discharge temperature
Abnormality in outdoor fan motor
Overheat protection
Compressor overcurrent interruption (When Comp. locked)
Current sensor error
Abnormal low pressure
Compressor overcurrent interruption
Abnormality of indoor units
Communication error of M-NET system
OC374C--4.qxp 08.2.22 8:14 AM Page 98
- SERVICE MANUAL 1
- [Service Ref.] 2
- 1 TECHNICAL CHANGES 3
- REFERENCE MANUAL 4
- 3 SAFETY PRECAUTION 5
- Gravimeter 6
- [3] Service tools 6
- (1) which 7
- Dimension A 8
- Dimension B 8
- 4 FEATURES 9
- 5 SPECIFICATIONS 10
- 1PUHZ-RP125YHA21 12
- 1 / YHA3 12
- 1:135(298) / YHA3:130(287) 12
- (at 20°C) 13
- 6-3. NOISE CRITERION CURVES 14
- 7 OUTLINES AND DIMENSIONS 20
- Unit : mm 21
- Piping Knockout Hole Details 22
- Example of Notes 22
- Over 150mm 23
- Over 1000mm 23
- M-NET ADAPTER 25
- (w1 MODEL SELECT) 30
- (Contact Input)> 31
- 9 WIRING SPECIFICATIONS 32
- Set the SW8-3 to ON 33
- 1 2 (SW8) 33
- 9-4. M-NET WIRING METHOD 35
- 9-4-1. M-NET address setting 36
- 10 REFRIGERANT SYSTEM DIAGRAM 37
- 11 TROUBLESHOOTING 40
- OUTDOOR BOARD LED Display 41
- 1, L2, L3 and 41
- Error code (2 or 4 digits) 43
- (Alternating Display) 43
- [Procedure] 45
- Beep Beep 46
- 1,100VHA3) 51
- •V•W phase) to com 51
- 1, RP100VHA3) 51
- •V•W phase) to 51
- •V•W phase) to compres 52
- Continued to the next page 55
- From the previous page 56
- • Before repair 63
- 11-6. HOW TO CHECK THE PARTS 67
- PUHZ-RP35/50/60/71/100VHA2 67
- PUHZ-RP35/50/60/71/100VHA3 67
- DC DC250~330V 68
- CC DC15V 68
- Linear expansion valve 70
- (RP35-RP71) 70
- (RP100-RP140) 71
- <Composition> 72
- 11-8. EMERGENCY OPERATION 74
- 11-9. TEST POINT DIAGRAM 76
- PUHZ-RP35VHA21 PUHZ-RP35VHA3 79
- PUHZ-RP50VHA21 PUHZ-RP50VHA3 79
- PUHZ-RP60VHA2 80
- PUHZ-RP71VHA2 80
- PUHZ-RP71VHA21 PUHZ-RP71VHA3 81
- PUHZ-RP60VHA21 PUHZ-RP60VHA3 81
- PUHZ-RP100VHA2 82
- PUHZ-RP125VHA2 82
- PUHZ-RP140VHA2 82
- PUHZ-RP100VHA21 83
- PUHZ-RP125VHA21 83
- PUHZ-RP140VHA21 83
- PUHZ-RP100YHA2 84
- PUHZ-RP125YHA2 84
- PUHZ-RP140YHA2 84
- PUHZ-RP100YHA21 85
- PUHZ-RP125YHA21 85
- PUHZ-RP140YHA21 85
- Outdoor power circuit board 86
- ➔ Transmitting signal 87
- Active filter module 91
- (1) Function of switches 93
- Model select 94
- Power consumption 95
- (SW1 on) 95
- Detailed 96
- 1 second 98
- SW2 setting 100
- Display detail 100
- Explanation for display Unit 100
- •The ones digit 106
- 12 FUNCTION SETTING 107
- Temperature correction: Valid 108
- Mode number 109
- Setting number 109
- [Operating Procedure] 110
- TEST RUN 111
- Hold down the 113
- 13-2. REQUEST CODE LIST 115
- Refer to 118
- 14 EASY MAINTENANCE FUNCTION 124
- Display 125
- Check Points 126
- Stabilized 127
- " 0" 128
- 15 DISASSEMBLY PROCEDURE 129
- OPERATING PROCEDURE PHOTOS 130
- OPERATING PROCEDURE 134
- PHOTOS & ILLUSTRATION 134
- PUHZ-RP60,71VHA2(1)/VHA3 134
- (1)(TH33 : See Photo 9.) 135
- 1 PUHZ-RP60/71VHA3 135
- PUHZ-RP100, 125, 140VHA2(1) 139
- PUHZ-RP100VHA3 139
- 1 PUHZ-RP100VHA3 140
- PUHZ-RP100/125/140YHA2(1) 144
- PUHZ-RP100YHA3 144
- 1 PUHZ-RP100YHA3 146
- PUHZ-RP35VHA2 155
- PUHZ-RP50VHA2 155
- 17 RoHS PARTS LIST 162
- 1 PUHZ-RP35VHA3 174
- 1 PUHZ-RP50VHA3 174
- (1) VHA3 175
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