Electrolux KSV26HRC User manual

Copyright 2013 ELECTROLUX HOME PRODUCTS PTY LTD Technical Services
ELECTROLUX HOME PRODUCTS PTY LTD
ABN 51 004 762 341
KELVINATOR
SPLIT SYSTEM
AIR-CONDITIONER
MODEL:
KSV26HRC
PNC: 950132910
KSV35HRC
PNC: 950132911
Issue: 2
Technical Publication Nº KSSSI113 Date: 01/13
DIAGNOSTIC MANUAL
Release Date: September 2011

Page 2 KSSSI113
Index:
Description –(Indoor)
Indoor Display
Code
Standby
LED
Heating
LED
Cooling
LED
Page Nº
Safe Electrical Working Practices
4
Positive Lock Terminals
4
Capacitor Discharge
5
Led Flash Code Sequence Description
6 & 7
Not Operating
8 & 9
Diagnostic Display Mode Description
10
Wiring Diagram (Indoor & Outdoor)
29 to 31
Jumper Cap Malfunction
C5
Flash-15
27
DRED (Compressor Off)
D1
12
DRED (Output Capacity-50%)
D2
12
DRED (Output Capacity-75%)
D3
12
Anti-Freeze Protection
E2
Flash-2
12
Refrigeration System Blocked/Gas Leak
E3
Flash-3
28
Compressor High Temp Protection
E4
Flash-4
10
AC-Over Current Protection
E5
Flash-5
10
Communications Fault
E6
Flash-6
15 to 18
Anti-High Temperature Protection
E8
Flash-8
11
Loading EEPROM Malfunction
EE
Flash-15
14
Sensor, Room Temperature (Indoor)
F1
Flash-1
23
Sensor, Tube Temperature (Indoor)
F2
Flash-2
23
Sensor, Ambient (Outdoor)
F3
Flash-3
22
Sensor, Coil (Outdoor)
F4
Flash-4
22
Sensor, Compressor Discharge (Outdoor)
F5
Flash-5
22
Anti-High Temperature Protection
F6
Flash-6
12
Anti-Freeze Limit, Frequency Drop
FH
Flash-2
Flash-2
12
Defrosting
H1
Flash-1
11
Compressor Overload Protection
H3
Flash-3
26
IPM Protection
H5
Flash-5
19 to 21
Fan Stall, Indoor Unit
H6
Flash-11
24
PFC Protection
HC
Flash-6
11
Outdoor DC Fan Motor Malfunction
L3
Flash-23
25
Indoor & Outdoor Units Don’t Match
LP
Flash-23
27
Compressor Rated Frequency-Test State
P1
13
Compressor Maximum Frequency-Test State
P2
13
Compressor Medium Frequency-Test State
P3
13
High Voltage Protection
PH
11
Low Voltage Protection
PL
11
Compressor Minimum Frequency-Test State
PO
13

Page 3 KSSSI113
Description –(Outdoor)
Green
LED
Red
LED
Yellow
LED
Page Nº
Normal Communication
Flash-1
7
Normal Operation
Flash-8
7
Normal Operation
Flash-0.5
7
Defrosting
Flash-2
11
Frequency Limit
Flash-1
10
Anti-High Temperature Protection
Flash-3
11
Low Voltage Protection
Flash-12
11
High Voltage Protection
Flash-13
11
Anti-Freeze Protection
Flash-3
12
Anti-Freeze Limit, Frequency Drop
Flash-4
12
Anti-High Temperature Protection
Flash-4
12
Communications Fault
Off
15 to 18
IPM Protection
Flash-4
19 to 21
Loading EEPROM Malfunction
Flash-11
14
Sensor, Ambient (Outdoor)
Flash-5
22
Sensor, Coil (Outdoor)
Flash-6
22
Sensor, Comp Discharge (Outdoor)
Flash-7
22
High Temperature Prevention
Flash-3
Flash-6
24
Outdoor DC Fan Motor Malfunction
Flash-14
25
Compressor Overload Protection
Flash-8
26

Page 4 KSSSI113
Safe Electrical Working Practices
Remove Power cord, Fuse or Switch off the circuit breaker.
Always check appliance with multimeter to ensure the supply power is disconnected.
Use only insulated tools & equipment.
Wear insulated shoes.
No water on the floor or working space.
Reduce the amount of exposed skin, by covering your arms and legs.
Remove jewellery (Rings, Watches etc).
It is essential that you conform to all “Working Live” and “Risk Management” statutory
requirements.
Positive Lock Terminals
The indoor & outdoor PCB’s are fitted with “Positive Lock Terminals”.
To remove Positive Lock Terminals: Push the lever forward & lightly pull down on the terminal.
Note: When reconnecting the Positive Lock Terminal, connect it so that the lever faces towards the front
of the unit.
Positive Lock Terminal arrangement.

Page 5 KSSSI113
Capacitor Discharge
Discharge the capacitors located on the outdoor main PCB assembly.
Note: Even if the power supply has been disconnected, high voltage power can be stored in these
capacitors.
Discharge the capacitors with the use of a 25 or 40-Watt incandescent globe. As illustrated below.
Electrolytic Capacitors Bulb (25-40W)

Page 6 KSSSI113
LED Flash Code Sequence Description (Indoor Display PCB)
# In the event of a complete shutdown or an operational control adjustment the Standby, Heating or
Cooling LED’s on the indoor display PCB flash to indicate this sequence.
Note: The LED’s flash at a 1 second rate for the required number of flashes, and then a 2 second pause
before repeating the 1 second rate sequence.
# Example of LED sequence:
# Example of fault code & LED sequence:
Fault Code (E6-Communication) & Standby LED indicating fault type.
(Communication Fault –Standby LED)

Page 7 KSSSI113
LED Flash Code Sequence Description (Outdoor PCB)
# In the event of a complete shutdown or an operational control adjustment the outdoor PCB Green,
Yellow & Red LED’s flash to indicate this sequence.
Note: The LED’s flash at a 1 second rate for the required number of flashes, then a 2 second pause
before repeating the 1 second rate sequence.
Note: Two or more faults can appear in the one LED fault sequence.
# Example of LED sequence:
Green LED: Outdoor unit, flashing at 1 hertz.
# Normal communication.
Red LED: Outdoor unit, flashing at 8 times.
# Normal operation.
Yellow LED: Outdoor unit, flashing once every two seconds.
# Normal operation.
LED locations on outdoor PCB
Mutable fault code sequence.

Page 8 KSSSI113
Not Operating:
# Check the wiring configuration from the outdoor unit to the indoor unit. Is it wired up correctly
in accordance to the wiring diagrams provided on both indoor & outdoor units? (Refer pages 29
to 31)
# While the unit is in “standby” mode, check if the red stand by light is on?
# Try operating the unit by the forced operations button: By pressing the button once, the unit
should activate in Auto mode. Pressing it twice will turn the unit off.
# If the unit can be operated by the forced operations button & the red stand by light was on,
check the remote controller.
# If the unit can be operated by the forced operations button & the red stand by light was off,
replace the display PCB assembly.
# If the unit cannot be operated by the use of the remote control or the forced operation button,
check for supply voltage at the following points, illustrated on the next page.
Standby indicator on Display PCB assembly.
Button located under indoor filter cover.

Page 9 KSSSI113
Not Operating Continues:
# Check for supply voltage at the following connection points:
From the isolation switch to the Active-In & Neutral connector points located on the indoor
PCB.
If supply power is available at the above connector points, yet the unit can still not be operated
by the remote control or the forced operation button, replace the indoor PCB.
Active & Neutral Supply voltage points from service cord to indoor
PCB.

Page 10 KSSSI113
Diagnostic Display Mode Description:
Built into the software for models: KSV26HRC & KSV35HRC are two different diagnostic methods:
(Fault Codes & Condition Codes) that can be used to help diagnose various faults.
These two diagnostic types are described in the following pages.
Note: Where there is referral to (Delayed)
# This indicates a time delay before the fault code in question is displayed.
Note: Where there is a referral to (Remote Control Access –3)
# This indicates the need to use the remote controller to view the relevant fault code.
This is achieved by pressing the “Light” button 3 times within three seconds.
Note: Where there is a referral to (Remote Control Access –5)
# This indicates the need to use the remote controller to initiate a selected “Test State”.
This is achieved by pressing the “Light” button 5 times within three seconds.
Note: Where there is a referral to (DRED)
# This indicates the unit in question is fitted with a “Demand Response Electrical Device” that enables
the compressor to operate at various capacities (75% of total capacity, 50% of total capacity &
compressor off).
Fault Code Descriptions:
Red LED: Outdoor unit, flashing at 1 hertz.
(Frequency Limit)
# This indicates the compressor has reached its maximum setting speed.
E4, Indoor Unit.
Indoor Standby LED, flash 4times.
(Compressor Discharge High Temperature Protection)
# Check the outdoor coil for airflow obstructions.
# Check the outdoor fan motor for correct operation.
E5, Indoor Unit.
Indoor Standby LED, flash 5times.
(AC Over-Current Protection)
# While the unit is in operation, check the maximum current draw. If it’s above the maximum current
rating illustrated on the outdoor rating plate, check operation of the compressor.

Page 11 KSSSI113
Fault Code Description Continues:
E8, Indoor Unit. (Delayed)
Indoor Standby LED, flash 8times. (Delayed)
Red LED, Outdoor unit flashing 3times.
(Anti-High Temperature Protection)
# Check the indoor coil for airflow obstructions.
# Check the indoor fan motor for correct operation.
H1, Indoor unit.
Indoor Heating flashing 1 time.
Yellow LED: Outdoor unit, flashing 2 times.
(Defrosting)
PL, Indoor unit.
Yellow LED: Outdoor unit, flashing 12 times.
(Low Voltage Protection)
#Check supply voltage.
PH, Indoor unit.
Yellow LED, Outdoor unit flashing 13 times.
(High Voltage Protection)
#Check supply voltage.
HC, Indoor unit.
Indoor Heating LED, flash 6times.
(PFC Protection)
#Check supply voltage.

Page 12 KSSSI113
Condition Code Description:
D1, Indoor unit - (Condition Code)
DRED (Demand Response Electrical Device)
#Compressor off.
D2, Indoor unit - (Condition Code)
DRED (Demand Response Electrical Device)
#Output capacity limited to 50%.
D3, Indoor unit - (Condition Code)
DRED (Demand Response Electrical Device)
#Output capacity limited to 75%.
E2, Indoor Unit - (Condition Code) {Remote Control Access - 3}
Indoor Standby LED, flash 2times.
Yellow LED, Outdoor unit flashing 3times.
(Anti-Freeze Protection)
# Check if the filters are blocked on the indoor unit.
# Check the refrigerant charge.
# Check for blockages within the refrigeration system.
#Check the evaporator fan for correct operation.
FH, Indoor Unit - (Condition Code) {Remote Control Access - 3}
Indoor Heating & Cooling LED, flash 2times.
Red LED, Outdoor unit flashing 4times.
(Anti-Freeze Limit –Frequency Drop)
# Check if the filters are blocked on the indoor unit.
# Check the refrigerant charge.
# Check for blockages within the refrigeration system.
#Check the evaporator fan for correct operation.
F6, Indoor Unit. - (Condition Code) {Remote Control Access - 3}
Indoor Cooling LED, flash 6times.
Yellow LED, Outdoor unit flashing 4times.
(Anti-High Temperature Protection)
# Check the outdoor coil for airflow obstructions.
# Check the outdoor fan motor for correct operation.

Page 13 KSSSI113
Condition Code Continues:
PO, Indoor Unit - (Condition Code) {Remote Control Access - 5}
(Compressor Minimum Frequency - Test State)
# Set remote control: (Cooling mode: 16ºC –Heating mode: 27ºC)
P1, Indoor Unit - (Condition Code) {Remote Control Access - 5}
(Compressor Rated Frequency - Test State)
# Set remote control: (Cooling mode: 18ºC –Heating mode: 29ºC)
P2, Indoor Unit - (Condition Code) {Remote Control Access - 5}
(Compressor Maximum Frequency - Test State)
# Set remote control: (Cooling mode: 19ºC –Heating mode: 30ºC)
P3, Indoor Unit - (Condition Code) {Remote Control Access - 5}
(Compressor Medium Frequency - Test State)
# Set remote control: (Cooling mode: 17ºC –Heating mode: 28ºC)

Page 14 KSSSI113
EE, Indoor unit.
Indoor Heating LED, flash 15 times
Yellow LED, Outdoor unit flashing 11 times.
(Loading EEPROM malfunction)
# Check if the Program Chip is anchored correctly to the outdoor PCB.
Note: If the Program Chip is correctly anchored, yet “EE” fault still exists, replace the outdoor PCB
assembly.
Program Chip on outdoor PCB.

Page 15 KSSSI113
Communication Fault:
E6, Indoor unit.
Indoor Standby LED, flash 6times.
Green LED, Outdoor unit off.
# If applicable, disconnect the DRED (Demand Response Enabled Device) or also known as a (Peak
Smart Meter) connecting network cable plug, located at the rear corner of the indoor unit (behind the
terminal block). Refer attached photo:
Note: If this rectifies the “E6” (Communication) fault, inform the customer there is a problem with the
DRED system, not the air/con in question, & to contact their local energy provider.
Note: If “E6” (Communication) fault still exists, continue to the next page.
Location of DRED network connection plug.

Page 16 KSSSI113
Communication Fault:
E6, Indoor unit.
Indoor Standby LED, flash 6times.
Green LED, Outdoor unit off.
#Disconnect the main power supply to the indoor unit by means of the isolation switch. After
approximately one minute, turn the power supply back on & attempt to operate the unit in “Auto” mode
with a set temperature of two degrees above or below the ambient temperature.
If the Communication fault has not cleared:
# Check for supply voltage at the following points.
Between the Active -Out & Neutral points on the indoor PCB.
Between the Active & Neutral points on the indoor terminal block.
Between the Active & Neutral points on the outdoor terminal block.
Between the Active & Neutral points on the outdoor PCB.
Active & Neutral points on
outdoor terminal block.
Active & Neutral supply voltage
points on indoor terminal block.
Active - Out & Neutral supply voltage
points on indoor PCB.
Active & Neutral supply voltage points on
outdoor PCB.

Page 17 KSSSI113
Communication Fault Continues:
# Disconnect the supply power & check the continuity of the COM-U wire from the following points:
COM-U terminal point on the indoor PCB.
To the communication terminal points on the indoor terminal block.
To the communication terminal points on the outdoor terminal block.
To the COM-U terminal point on the outdoor PCB.
Note: When checking the continuity between the indoor terminal block & the outdoor terminal block,
disconnect the COM-U & Active wires on the indoor terminal block, and then attach them together. This
will create a circuit that can then be tested between the COM-U & Active terminal points on the outdoor
terminal block.
COM-U terminal point on indoor PCB.
Communication terminal points on
indoor terminal block.
Communication terminal points on outdoor
terminal block.
COM-U terminal point on outdoor main PCB.

Page 18 KSSSI113
Communication Fault Continues:
# Check the continuity of the connecting wires from the outdoor PCB to the Reactor, as listed below.
Orange terminal point on outdoor PCB to orange terminal point on Reactor.
White terminal point on outdoor PCB to white terminal point on Reactor.
Check the continuity of the reactor. If open circuit, change it.
Orange & White connecting wires from outdoor PCB to Reactor.
Resistance reading of Reactor.

Page 19 KSSSI113
IPM Protection:
H5, Indoor unit. (Delayed)
Indoor Heating LED, flash 5times (Delayed)
Yellow LED, Outdoor unit flashing 4times.
# Disconnect the supply power to the unit by means of the isolation switch.
# Remove the Blue-U, Yellow-V& Red-Wspade terminals from the main outdoor PCB to the
compressor, then measure the resistance value of each winding from these three spade terminal points.
Note: The resistance value should be the same across any terminal combination.
Note: The resistance values will change in accordance to Capacity & Ambient temperatures.
# If there is an open circuit or infinite resistance reading from these points, then measure the
resistance value from the spade terminals on the compressor.
# If all resistance checks are okay, continue to the next page.
Resistance check from the Blue-U, Yellow-V& Red-W
spade terminals on main outdoor PCB.
Blue-Run, Yellow-Start & Red-Common terminal
points of compressor.

Page 20 KSSSI113
IPM Protection Continues:
# Remove the Blue, Yellow & Red wires that connect to the U, V & W terminal points on the outdoor
main PCB.
# Check for continuity across any terminal combination of the U, V & W spade terminal points.
Note: All continuity checks should read “open circuit”. If a circuit & or resistance value is measured,
replace the outdoor main PCB.
# If all continuity checks read open circuit, reconnect the Blue-U, Yellow-V& Black-Wwires, then
check the DC output illustrated on the following page.
IPM spade terminal connection points.