Airwell Trio Dakota 5.2 DCI, Руководство по обслуживанию

Страница: 45 / 50

12-4
TROUBLESHOOTING
SM TRIO52 1-A.2 GB
1.3.2 MSMP Fault Code for Indoor Unit:
No Problem 5 4 3 2 1 Possible Reason Corrective Action
1
RT-1 is disconnected
1. RT-1 is not connected to
controller terminal;
2.RT-1 is cut out;
3.Controller is damaged In case1, reinstall RT-1 and make sure it’s
connected well; If fault still exists, move to
check case2, use a multimeter to check RT-
1’s resistor, if it’s +
’ , RT-1 is damaged and
change a new one; if it’s around10K(at 25 ),
then move to case 3; In case 3, change a new
controller.
2
RT-1 is shorted
1. RT-1 is shorted;
2. Controller is shorted
In case 1, use a multimeter to check RT-1’s
resistor, if it’s 0, RT-1 is damaged and change
a new one; if it’s around 10K(at 25 ), then
move to case 2; In case 2, change a new
controller.
3 RT-2 is disconnected Similar as item 1 Similar as item 1
4
RT-2 is shorted Similar as item 2 Similar as item 2
5 RGT is disconnected Similar as item 1 Similar as item 1
6 Reserved
7 Communication
mismatch
Possibly mis-wiring.
8
No Communication Possibly mis-wiring.
9
No Encoder
Possibly mis-wiring, controller
damaged or fan motor damaged.
10 Reserved
11 Outdoor unit fault Refer to 1.3.1
12
Reserved
13 Reserved
14 Reserved
15
Reserved
17
Defrost protection
Normal AC protection, no need
action
18
Deicing Protection
Normal AC protection, no need
action
19 Outdoor Unit
Protection
Refer to 1.3.1
20 Indoor Coil HP
Protection Normal AC protection, no need
action
21
Overflow Protection
Normal AC protection, no need
action
22
Reserved
23 Reserved
24 EEPROM Not
Updated
Possibly damaged.
25 Bad EEPROM Possibly damaged.
26
Bad Communication ң ң Ң ң Ң
Check for wiring between IDU and
ODU.
27
Using EEPROM data ң ң Ң ң ң
A/C is operating with customized
A/C parameters from EEPROM Use MEGATOOL to reset to default
parameters
29
No Fault (Heat Mode) 1 1 1 0 1
30
No Fault (Cool, Dry,
Fan Mode)
1 1 1 1 0
31
No Fault (Stand By)
1 1 1 1 1
CONTENTS