Klimaire KMIR MKMIR218-H221 Programming manual

Multi outdoor units
troubleshooting
Multi zone
CONDENSING UNITS
Model Numbers:
MKMIR218-H221, KMIR327-H217,
KMIR436-H217, KMIR545-H219
WARNING
Installation MUST conform with local building codes or, in the absence of local
codes, with the National Electrical Code NFPA70/ANSI C1-1993 or current edition
and Canadian Electrical Code Part1 CSA C.22.1.
The information contained in the manual is intended for use by a qualified service
technician familiar with safety procedures and equipped with the proper tools and
test instruments
Installation or repairs made by unqualified persons can result in hazards to you
and others.
Failure to carefully read and follow all instructions in this manual can result in
equipment malfunction, property damage, personal injury and/or death.
Table of Contents
1. Trouble Shooting
KMIR

8. Troubleshooting
8.1Safety
Because of there are capacitors in PCB and relative circuit in outdoor unit, even shut down the power
supply, electricity power still are kept in capacitors, do not forget to discharge the electricity power in
capacitor.
The value of resistance is about 1500 ohm to 2000 ohm
Electrolytic Capacitors
(HIGH VOLTAGE! CAUTION!)
Bulb (25-40W)

The voltage in P3 and P4 in outdoor PCB is high voltage about 310V
The voltage in P5 and P6 in outdoor PCB is high voltage about 310V
8.2 Indoor Unit Error Display
Console series
Operation
Timer
De-frost
Failure
★
X
X
Open or short circuit of T1 temperature sensor
X
X
★
Open or short circuit of T2 temperature sensor
X
★
X
Communication malfunction between indoor and outdoor units
★
★
X
Indoor EEPROM malfunction
X
★

Outdoor fan speed has been out of control
★
X
★
IPM module protection
★
★
★
Open or short circuit of T3 or T4 temperature sensor or Outdoor unit
EEPROM parameter error
★

X
Temperature protection of compressor top
★
◎
X
Inverter compressor drive protection
★
X

Mode conflict
★

★
Indoor fan speed has been out of control
★flash at 5Hz, light, X extinguished, ◎flash at 0.5Hz
For KDIR09-H2, KDIR12-H2, KDIR18-H2, KDIR24-H2, KTIR09-H2, KTIR12-H2, KTIR18-H2:
Operatio
n
Timer
De-frost
Alarm
Failure
Display
ODU Error
code
★
X
X
X
Open or short circuit of T1 temperature sensor
E0
——
X
X
★
X
Open or short circuit of T2 temperature sensor
E1
——
X
★
X
X
Communication malfunction between indoor and
outdoor units
E2
E2
X
X
X
★
Water-level alarm malfunction
E3
——
★
★
X
X
Indoor EEPROM malfunction
E4
——
★
X
X

IPM module protection
E5
P6
★

X
X
Open or short circuit of T3 or T4 temperature sensor
or outdoor EEPROM malfunction
E6
E0,E4

★

★
X
Outdoor fan has been out of control
E7
E8
★


X
Indoor fan speed has been out of control
F5
——
★

X

Voltage protection
P0
E5
★
X

X
Temperature protection of compressor top.
P1
P0
★
★
★
X
Outdoor unit over-current protection
P2
P3
★
◎
X
X
Inverter compressor drive protection
P4
——
★
X


Mode conflict
P5
——
★flash at 2.5Hz, light, X extinguished, , ◎flash at 0.5Hz
Note: Digital display is only available for duct type.
Oasis series:
Operation lamp
Timer lamp
Display
LED STATUS
ODU
Error
★1 time
X
E0
Indoor EEPROM malfunction
——
★2 times
X
E1
Communication malfunction between indoor and outdoor units
E2
★4 times
X
E3
Indoor fan speed malfunction.
——
★5 times
X
E4
Indoor room temperature sensor open or short circuit.
——
★6 times
X
E5
Evaporator coil temperature sensor open or short circuit.
——
★2 times

F1
Outdoor temperature sensor open or short circuit.
E4
★3 times

F2
Condenser coil temperature sensor open or short circuit.
E4
★4 times

F3
Compressor discharge pipe sensor open or short circuit.
E4
★5 times

F4
Outdoor EEPROM malfunction
E0
★6 times

F5
Outdoor fan has been out of control
E8
★7 times

F6
Indoor unit coil outlet temp. sensor open or short circuit.
E4
★1 times
★
P0
Inverter module (IPM) malfunction or IGBT over-strong current protection
P6
★2 times
★
P1
Voltage(High voltage or low voltage ) protection.
E5
★3 times
★
P2
High temperature protection of compressor top (only for M3OD-27HRDN1-M)
P0
★5 times
★
P4
Compressor drive error
——
★6 times
★
P5
Mode conflict
——
★flash , light, X extinguished
8.3 Outdoor Unit Display
8.3.1 Outdoor unit point check function
There is a check switch in outdoor PCB.

Push the switch SW1 to check the states of unit when the unit is running. The digital display tube will
display the follow procedure when push SW1 each time.
Display
Remark
0
Normal display
Display running frequency, running state or malfunction code
1
Quantity of indoor units in good connection
Actual data
Display
Number of indoor unit
1
1
2
2
3
3
4
4
2
Outdoor unit running mode code
Off:0,Fan only 1, Cooling:2, Heating:3, Forced cooling:4
3
A indoor unit capacity
The capacity unit is horse power. If the indoor unit is not connected, the digital
display tube will show: “――”
(9K:1HP,12K:1.2HP,18K:1.5HP)
4
B indoor unit capacity
5
C indoor unit capacity
6
D indoor unit capacity
7
E indoor unit capacity

8
A Indoor unit capacity demand code
Norm code*HP
(9K:1HP,12K:1.2HP,18K:1.5HP)
9
B Indoor unit capacity demand code
10
C Indoor unit capacity demand code
11
D Indoor unit capacity demand code
12
E Indoor unit capacity demand code
13
Outdoor unit amendatory capacity demand code
Forced cooling:7
14
The frequency corresponding to the total indoor
units amendatory capacity demand
15
The frequency after the frequency limit
16
The frequency sending to compressor control
chip
17
A indoor unit evaporator outlet temp.(T2BA)
If the temp. is lower than -9 degree, the digital display tube will show “-9”.If the
temp. is higher than 70 degree, the digital display tube will show “70”. If the
indoor unit is not connected, the digital display tube will show: “――”
18
B indoor unit evaporator outlet temp.(T2BB)
19
C indoor unit evaporator outlet temp.(T2BC)
20
D indoor unit evaporator outlet temp.(T2BD)
21
E indoor unit evaporator outlet temp.(T2BE)
22
A indoor unit room temp.(T1A)
If the temp. is lower than 0 degree, the digital display tube will show “0”.If the
temp. is higher than 50 degree, the digital display tube will show “50”. If the
indoor unit is not connected, the digital display tube will show: “――”
23
B indoor unit room temp.(T1B)
24
C indoor unit room temp.(T1C)
25
D indoor unit room temp.(T1D)
26
E indoor unit room temp.(T1E)
27
A indoor unit evaporator temp.(T2A)
If the temp. is lower than -9 degree, the digital display tube will show “-9”.If the
temp. is higher than 70 degree, the digital display tube will show “70”. If the
indoor unit is not connected, the digital display tube will show: “――”
28
B indoor unit evaporator temp.(T2B)
29
C indoor unit evaporator temp.(T2C)
30
D indoor unit evaporator temp.(T2D)
31
E indoor unit evaporator temp.(T2E)
32
Condenser pipe temp.(T3)
33
Outdoor ambient temp.(T4)
34
Compressor discharge temp.(TP)
The display value is between 30~129 degree. If the temp. is lower than 30
degree, the digital display tube will show “30”.If the temp. is higher than 99
degree, the digital display tube will show single digit and tens digit. For
example, the digital display tube show “0.5”,it means the compressor
discharge temp. is 105 degree.)
35
AD value of current
The display value is hex number.
For example ,the digital display tube show “Cd”, it means AD value is 205.
36
AD value of voltage
37
EXV open angle for A indoor unit
Actual data/4.
If the value is higher than 99, the digital display tube will show single digit and
tens digit.
For example ,the digital display tube show “2.0”,it means the EXV open angle
is 120×4=480p.)
38
EXV open angle for B indoor unit
39
EXV open angle for C indoor unit
40
EXV open angle for D indoor unit
41
EXV open angle for E indoor unit
42
Frequency limit symbol
Bit7
Frequency limit caused by IGBT
radiator
The display value is
hex number. For
example, the digital
display tube show
2A,then Bit5=1,
Bit3=1, Bit1=1.
It means frequency
limit caused by
T4,T3 and current.
Bit6
Frequency limit caused by PFC
Bit5
Frequency limit caused by T4.
Bit4
Frequency limit caused by T2.
Bit3
Frequency limit caused by T3.
Bit2
Frequency limit caused by T5.
Bit1
Frequency limit caused by current
Bit0
Frequency limit caused by voltage

43
Average value of T2
(Sum T2 value of all indoor units)/( number of indoor units in good connection)
44
Outdoor unit fan motor state
Off:0, High speed:1, Med speed:2, Low speed:3 Breeze:4, Super breeze:5
45
The last error or protection code
00 means no malfunction and protection
46
F indoor unit capacity
47
F Indoor unit capacity demand code
48
F indoor unit evaporator outlet temp.(T2BF)
49
F indoor unit room temp.(T1F)
50
F indoor unit evaporator temp.(T2F)
51
EXV open angle for F indoor unit
8.3.2 Outdoor unit’s digital display tube
There is a digital display tube in outdoor PCB.
Digital display tube display function
In standby , the LED displays “- -”
In compressor operation, the LED display the running frequency,
In defrosting mode, The LED displays “dF” or alternative displays between running frequency and
“dF”(each displays 0.5s)
In compressor pre-heating, The LED displays “PH”or alternative displays between running frequency
and “PH”(each displays 0.5s)
During the oil return process, The LED displays “RO” or alternative displays between running
frequency and “RO”(each displays 0.5s)
In low ambient cooling mode, the LED displays “LC” or alternative displays between running
frequency and “LC”(each displays 0.5s)
In forced cooling mode, the LED displays “FC” or alternative displays between running frequency and
“FC”(each displays 0.5s)
When PFC module protection occurs three times within 15 minutes, the LED displays “E6” or
alternative displays between running frequency and “E6”(each displays 0.5s)
In protection or malfunction, the LED displays error code or protection code.

8.3.3 Outdoor unit error display
Display
LED STATUS
IDU
Error
(Oasis)
IDU
Error
(CTBU)
E0
Outdoor EEPROM malfunction
F4
E6
E2
Communication malfunction between indoor and outdoor units
E1
E2
E3
Communication malfunction between IPM board and outdoor main
board
——
——
E4
Open or short circuit of outdoor temperature sensor (T3、T4、T5、
T2B)
F2
E6
E5
Voltage protection
P1
P0
E6
Active PFC module protection
——
——
E8
Outdoor fan speed has been out of control (Only for DC fan motor
models)
F5
——
F1
No A Indoor unit coil outlet temp. sensor or connector of sensor is
defective
——
——
F2
No B Indoor unit coil outlet temp. sensor or connector of sensor is
defective
——
——
F3
No C Indoor unit coil outlet temp. sensor or connector of sensor is
defective
——
——
F4
No D Indoor unit coil outlet temp. sensor or connector of sensor is
defective
——
——
F5
No E Indoor unit coil outlet temp. sensor or connector of sensor is
defective
——
——
F6
No F Indoor unit coil outlet temp. sensor or connector of sensor is
defective
——
——
P0
Temperature protection of compressor top
P2
P3(P1)
P1
High pressure protection
——
——
P2
Low pressure protection
——
——
P3
Current protection of compressor
——
——(P2)
P4
Temperature protection of compressor discharge
——
——
P5
High temperature protection of condenser
——
——
P6
IPM module protection
P0
E5

8.4 Diagnosis and Solution
8.4.1 Indoor unit trouble shooting
8.4.1.1 Indoor EEPROM malfunction diagnosis and solution.
Malfunction decision
conditions
PCB main chip does not receive feedback from EEPROM chip
●Installation mistake
●PCB faulty
Trouble shooting:
Supposed causes
If the EEPROM chip
is welded on PCB,
replace the PCB
directly. Otherwise,
check whether the
EEPROM chip
plugged in PCB well?
Yes
No
Yes
Insert the EEPROM well
Replace the indoor PCB.
Shut off the power supply and
turn it on 1 minute later. Is it
still displaying the error code?
EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed voltage. For the
location of EEPROM chip, please refer to the below photos.

8.4.1.2 Communication malfunction between indoor and outdoor units diagnosis and
solution.
Malfunction decision
conditions
Indoor unit does not receive the feedback from outdoor unit
during 120 seconds.
Supposed causes
●Wiring mistake
●Indoor or outdoor PCB faulty
Trouble shooting: