Electrolux KELVINATOR KSV53HRA User manual

Copyright 2015 ELECTROLUX HOME PRODUCTS PTY LTD Technical Services
ELECTROLUX HOME PRODUCTS PTY LTD
ABN 51 004 762 341
KELVINATOR
SPLIT SYSTEM
AIR-CONDITIONER
MODELS:
KSV53HRA
KSV62HRA
KSV70HRA
Issue: 7
Technical Publication Nº KSSSI90 Date: 12/15
DIAGNOSTIC MANUAL

Indoor Unit & PCB test board Error Display.
DISPLAY LED STATUS PAGE
Not Operating
No operation by use of remote control
3 to 6
E0
EEPROM parameter error
7
E1
Indoor / outdoor units communication protection
8 to 17
E3
Indoor Unit Fan Stall
30 & 31
E5
Open or short circuit of outdoor condenser pipe & compressor temperature sensors
18 & 19
E52
Open or short circuit of outdoor ambient temperature sensor
18 & 19
E6
Open or short circuit of room or evaporator temperature sensor
20
L2 & PA
High-temperature protection of condenser
21 & 22
P0
Module protection
23 & 24
P1
Over voltage or too low voltage protection
25
P2
Temperature protection of compressor top - low refrigerant charge
26 & 27
P4
Inverter compressor drive error
28& 29
LO & P91
Evaporator high-frequency low-temperature limit
30 & 32
Page 2KSSSI90

Not Operating:
# While the unit is in “stand by” mode, check if the green stand by light is flashing at 1 Hertz?
# Try operating the unit by the forced operations button: By pressing the button once, the unit should
activate in Auto mode. By pressing this button twice, within five seconds, the unit should activate in
Cooling mode.
If the unit can be operated by the forced operations button & the green stand by light was flashing on the
display PCB assembly, prior to pressing forced operation button, check the remote controller.
If the unit can be operated by the forced operations button & the green stand by light was off on the
display PCB, replace the display PCB assembly.
Stand by indicator on Display PCB assembly.
Button located on top right hand side of
indoor unit behind filter cover.
Page 3KSSSI90

# If the frequency light is flashing & the unit can only be operated by the forced operations button.
The “Memory Module PCB” could be faulty. Refer attached photo’s
Note: There is no real way of isolating this Memory Module PCB & testing it, apart from replacing the
indoor control box assembly. As this component is not available as a induvial component.
Location of Memory Module PCB
(Indoor control box assembly)
Page 4KSSSI90

# If the unit cannot be operated by the use of the remote control or the forced operation button, proceed
as follows:
# Check the wiring configuration from the indoor unit to the outdoor unit. Is it wired up correctly in
accordance to the wiring diagram provided on the underside of the plastic outdoor terminal cover?
#Check the supply voltage to the outdoor terminal block.
# Check the supply voltage from the outdoor terminal block to the indoor terminal block.
Active & Neutral wires from mains supply.
Active, Neutral & Communication wires
connecting from outdoor terminal block to
indoor terminal block.
Active, Neutral & Communication wires from
outdoor terminal block.
Page 5KSSSI90

# Check the supply voltage from the indoor PCB to the transformer.
If there is 240 Volts AC from this connection point on the indoor PCB, replace the transformer.
If there is no supply voltage from this point, replace the indoor main PCB.
Transformer AC voltage connection points.
Page 6KSSSI90

E0 error:
#The E0 error indicates there is a software issue/program chip fault on the main indoor PCB assembly.
# Replace the main indoor PCB assembly.
If any one of the program chips fail, as highlighted by
the red arrows, this could cause an E0 error.
Page 7KSSSI90

E1 error:
(Indoor / outdoor units communication protection) error diagnosis and solution).
# Check for DC voltage at the following points:
•While in “standby mode”, disconnect the Signal Wire off the outdoor terminal block.
•With a multimeter, test the DC output from the signal wire connecting to the indoor unit &
earth.
•Then by using the same method, test the output signal on the terminal block from the outdoor
PCB & earth.
•If the meter reads a pulsing voltage in the 20's to the 40's (this can vary) the relevant PCB
should be okay.
•If the meter reads a 0 DC volts or a low stable voltage, this would indicate the PCB in
question is faulty.
Note: If both indoor & outdoor PCB’s appear okay, continue to the following page.
Page 8KSSSI90

E1 error (Indoor Unit)
#Disconnect the main power supply to the outdoor unit by means of the isolation switch. After
approximately one minute, turn the power supply back on & attempt to operate the unit on heating or
cooling mode by the use of the remote control.
If E1 fault has not cleared:
# Check the continuity of the (3uF) indoor fan capacitor mounted vertically inside the indoor control box
assembly.
# Measure the resistance of the Blue & Black wires that connect from the 3uF capacitor to the indoor fan
motor. The resistance reading should be approximately “322 Ohms”, at an ambient temperature of 22ºC.
3uF capacitor mounted inside the indoor
control box assembly.
3uF indoor fan capacitor.
Ohms reading of indoor fan motor.
Page 9KSSSI90

E1 error (Outdoor Unit)
If E1 fault has not cleared:
Check the continuity of the “Bridge Rectifier” as illustrated below.
Turn off the power & let the inverter electrolytic capacitors completely discharge.
Identify the diodes individual ‘Plus’ and ‘Minus’ connections so as to test each diode's forward and
reverse resistance values. The diagrams listed below illustrate the method of achieving this.
Relevant test points on the main outdoor PCB.
Set the multimeter to a DC Mega Ohms setting.
Place the Positive probe on the ~pin of the rectifier & the Negative probe on the +pin of the rectifier.
Place the Positive probe on the Opin of the rectifier & the Negative probe on the +pin of the rectifier.
Place the Positive probe on the -pin of the rectifier & the Negative probe on the ~pin of the rectifier.
Place the Positive probe on the -pin of the rectifier & the Negative probe on the Opin of the rectifier.
Note: Insure the multimeter probes are placed in their correct orientation as specified above.
Note: If any of the above tests indicate a “Short Circuit” replace the main PCB assembly.
All of the above tests should read several Mega Ohms.
Page 10 KSSSI90

If E1 fault has not cleared:
Check the continuity of the “IGBT” as illustrated below.
Turn off the power & let the inverter electrolytic capacitors completely discharge.
Identify the Negative DC, U, V & W soldered points so as to test each internal IGBT resistance value.
The diagrams listed below illustrate the method of achieving this.
Relevant IGBT test points on the main outdoor PCB.
Set the multimeter to a DC Mega Ohms setting.
Place the Negative probe on the Negative DC soldered point on the outdoor PCB & the Positive probe on
the Usoldered point on the outdoor PCB.
Place the Negative probe on the Negative DC soldered point on the outdoor PCB & the Positive probe on
the Vsoldered point on the outdoor PCB.
Place the Negative probe on the Negative DC soldered point on the outdoor PCB & the Positive probe on
the Wsoldered point on the outdoor PCB.
Note: Insure the multimeter probes are placed in their correct orientation as specified above.
Note: If any of the above tests indicate a “Short Circuit” replace the main PCB assembly.
All of the above tests should read several Mega Ohms.
Page 11 KSSSI90

If E1 fault has not cleared:
# Check the wiring connection configuration from the indoor to the outdoor units, in accordance to the
wiring diagram attached to the inside of the outdoor units plastic terminal block cover.
# Check the continuity on the “S” communication wire from the indoor units connection point, to the
outdoor units connection point.
# Check the continuity, from one point to the other, of the two “S” wiring connection points on the
outdoor terminal block.
# Check the continuity of the yellow “S” wire & female spade terminal located on the top section of the
outdoor terminal block, to the soldered “S” wiring point on the outdoor main PCB.
#Check the various Earth connection points for correct termination.
“S” communication points on outdoor terminal block.
“S” communication point on main outdoor
PCB.
Indoor terminal block
Page 12 KSSSI90

If E1 fault has not cleared:
# Check the continuity of the active wiring connection on the main outdoor terminal block, to the (CN4)
soldered wiring point on the outdoor main PCB.
# Check the continuity of the neutral wiring connection on the main outdoor terminal block, to the
(CN5) soldered wiring point on the outdoor main PCB.
Active wiring connection point on main outdoor
terminal block.
“CN4” point on outdoor main PCB.
Neutral wiring connection point on main
outdoor terminal block.
“CN5” point on outdoor main PCB
Page 13 KSSSI90

If E1 fault has not cleared:
# Check the continuity of the red connection wire located on the 50uf capacitor to the “CN3” soldered
wiring point on the outdoor main PCB.
Caution: Discharge the 50uf capacitor prior to any service work.
Caution: Discharge the 50uf capacitor prior to any service work.
# Check the continuity of the orange connection wire located on the 50uf capacitor to the connection
point on the outdoor (R1815E) reactor.
Note: Check the continuity of the capacitor & reactor. If open circuit, this will also cause an E1 fault.
“CN3” connection point on main outdoor PCB.
Red connection wire to 50uf capacitor.
Orange connecting wire from the 50uf
capacitor.
Orange connecting wire from (R1815E) reactor.
Page 14 KSSSI90

Caution: Discharge the 50uf capacitor prior to any service work.
If E1 fault has not cleared:
# Check the continuity of the orange connection wire located on the left hand terminal of (R1815E)
reactor to the “CN1” soldered wiring point on the outdoor main PCB.
Note: Check the continuity of the reactor. If it’s open circuit, this will also cause an E1 fault.
If E1 fault has not cleared:
# Check the continuity of the wire that connects to the reactor (R1502) spade terminal located closest to
the front of the outdoor unit, too the “N-B” soldered connection point on the main outdoor PCB.
“CN1” soldered connection point on outdoor
PCB.
Orange connecting wire from (R1815E) reactor.
N-B soldered connection point.
Front terminal point.
Reactor (R1502)
Page 15 KSSSI90

If E1 fault has not cleared:
# Check the continuity of the wire that connects to the reactor (R1502) spade terminal located to the rear
of the outdoor unit, too the two terminal relay located under the main outdoor PCB.
Note: Check the continuity of the reactor. If it’s open circuit, this will also cause an E1 fault.
#If there is a open circuit in any of the (R1502) reactor connection points, check the two point plug
located on the harness which runs between the main outdoor PCB & the (R1502) reactor.
Rear terminal point.
Reactor (R1502)
Relay located under main outdoor PCB.
Connection plug.
Page 16 KSSSI90

#Check the outdoor LED light code configuration.
During “Standby” conditions the LED’s work in this sequence:
LED 1 (Yellow) is FLASHING at 1 Hz
LED 5 (Red) is OFF
LED 6 (Green) is ON
During “Normal Operating” conditions the LED’s work in this sequence:
LED 1 (Yellow) is ON
LED 5 (Red) is ON
LED 6 (Green) is OFF
During “E1” fault the LED’s work in this sequence:
LED 1 (Yellow) is FLASHING at 5 Hz
LED 5 (Red) is OFF
LED 6 (Green) is ON.
Note: If the outdoor PCB is in the E1 fault sequence,this would indicate there is a potential fault with
the indoor main PCB.
If the indoor main PCB has been replaced and the E1 fault still exists or there is no LED light sequence
available on the outdoor main PCB, check all the wiring connection points, as previously illustrated, on
the main outdoor PCB in conjunction with the wiring diagram. If all wiring connection points are okay,
this would indicate the outdoor main PCB has failed & would also need to be replaced.
Page 17 KSSSI90

E5 error:
#Check the “condenser coil & compressor discharge sensors” for correct connection.
# Check the continuity of both sensor, if the sensor is open circuit, change it.
E52 error:
#Check the “condenser coil air temperature sensor” for correct connection.
# Check the continuity of the sensor, if the sensor is open circuit, change it.
Condenser coil pipe temperature sensor
Condenser coil air temperature sensor
Compressor discharge temperature sensor
Page 18 KSSSI90

#Check the LED light code configuration.
During normal operating conditions the LED’s work in this sequence:
LED 1 (Yellow) is ON
LED 5 (Red) is ON
LED 6 (Green) is OFF
During “E5” fault the LED’s work in this sequence:
LED 1 (Yellow) is FLASHING at 5 Hz
LED 5 (Red) is OFF
LED 6 (Green) is ON.
Note: If all the above checks relating to the sensors & wiring have been completed, yet the E5 fault still
exists, this would indicate the outdoor main PCB has failed & would need to be replaced.
Page 19 KSSSI90

E6 error:
#Check the two indoor temperature sensors for correct connection to the indoor main PCB.
# Check the continuity of the sensors, if ether of the sensors are open circuit, change them.
# If E6 fault code is still displayed after replacing one or both of the indoor sensor, replace the indoor
main PCB.
Note: the outdoor LED light configuration will not be affected by this fault.
Evaporator coil “pipe” temperature sensor
Evaporator coil “air” temperature sensor
Page 20 KSSSI90