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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 3  KSSSI90 

Summary of Contents for KELVINATOR KSV53HRA

Page 1: ... 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 ...

Page 2: ...ompressor 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 ...

Page 3: ...ctivate 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 a...

Page 4: ...y 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 4 KSSSI90 ...

Page 5: ...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 ou...

Page 6: ...CB 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 6 KSSSI90 ...

Page 7: ...es 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 7 KSSSI90 ...

Page 8: ... 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 ap...

Page 9: ...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 indoo...

Page 10: ...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 O 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 pin of the rectifier Place the Positive probe on the pin of the rectifier the Negative probe on the O pin ...

Page 11: ...be on the Negative DC soldered point on the outdoor PCB the Positive probe on the U soldered point on the outdoor PCB Place the Negative probe on the Negative DC soldered point on the outdoor PCB the Positive probe on the V soldered point on the outdoor PCB Place the Negative probe on the Negative DC soldered point on the outdoor PCB the Positive probe on the W soldered point on the outdoor PCB No...

Page 12: ...door 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 communicati...

Page 13: ...door 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 ...

Page 14: ...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 Ora...

Page 15: ...ontinuity 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 soldere...

Page 16: ...e 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 ...

Page 17: ... 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 conj...

Page 18: ... 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 ...

Page 19: ...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 ...

Page 20: ...f 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 ...

Page 21: ... for correct termination If the termination of the plug is okay check the continuity of each voltage point Check the Resistance value of the condenser fan motor plug from the following points Note The following resistance values were measured at an ambient temperature of 20ºC Brown Black 0 3 Ohms Brown Red 84 2 Ohms Brown Yellow 132 0 Ohms Brown Blue 230 Ohms Page 21 KSSSI90 ...

Page 22: ...lowing voltage readings were measured when the unit was run in Cooling mode with a set temperature of 17ºC FAN C to FAN M 220 Volts FAN C to FAN H 200 Volts FAN C to FAN N 240 Volts FAN C to 4 WAY 240 Volts If there is no AC voltage at any of these points replace the main outdoor PCB Relevant test points Page 22 KSSSI90 ...

Page 23: ...heck number 3 Start flag terminal for correct termination Check the continuity of the Black number 2 spade terminal wire connected to the compressor to the W point soldered on the main PCB Check the continuity of the Blue number 3 spade terminal wire connected to the compressor to the U point soldered on the main PCB Page 23 KSSSI90 ...

Page 24: ...ED 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 P0 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 FLASHING at 5 Hz Note If the LED s are NOT On or Flashing check the supply voltage to the board If supply voltage is okay this would indic...

Page 25: ...the CN4 soldered wiring point on the outdoor main PCB Check the AC voltage from the Neutral spade terminal to the CN5 soldered wiring point on the outdoor main PCB Note if the supply AC voltage is available at both the CN4 and CN5 points P1 fault still appears replace the main outdoor PCB assembly Active wiring connection point on main outdoor terminal block CN4 point on outdoor main PCB Neutral w...

Page 26: ...lag terminals for correct termination sequence Check the continuity sequence of the three wires soldered to the main PCB U V W to the three flag terminals connected to the compressor Correct wiring sequence from main outdoor PCB to compressor U to Blue Start V to Red Common W to Black Run Page 26 KSSSI90 ...

Page 27: ... LED s work in this sequence LED 1 Yellow is ON LED 5 Red is ON LED 6 Green is OFF During P2 fault the LED s work in this sequence LED 1 Yellow is FLASHING at 2 Hz LED 5 Red is OFF LED 6 Green is ON Note If the LED s are NOT On or Flashing check the supply voltage to the board If supply voltage is available to the board this would indicate the outdoor PCB assembly has failed Page 27 KSSSI90 ...

Page 28: ...ting check the following components Check number 1 Common flag terminal for correct termination Check the continuity of the Red number 1 spade terminal wire connected to the compressor to the V point soldered on the main PCB Page 28 KSSSI90 ...

Page 29: ...ED 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 P4 fault the LED s work in this sequence LED 1 Yellow is FLASHING at 5 Hz LED 5 Red is ON LED 6 Green is FLASHING at 5 Hz Note If the LED s are NOT On or Flashing check the supply voltage to the board If supply voltage is okay this would indica...

Page 30: ...tion of the plug is okay check the continuity of each voltage point Check the Resistance value of the evaporator fan motor plug from the following points Note The following resistance values were measured at an ambient temperature of 20ºC Grey Blue 37 2 Ohms Grey Yellow 73 7 Ohms Grey Red 100 9 Ohms Grey White 300 Ohms 5 pin plug terminal points Wire colours from left to right Grey Blue Yellow Red...

Page 31: ...nit was run in Cooling mode with a set temperature of 17ºC at High fan speed White to Grey 315 Volts White to Blue 287 Volts White to Yellow 259 Volts White to Red 238 Volts If there is no AC voltage at any of these points replace the main indoor PCB AC voltage points on rear of indoor main PCB Side view of AC voltage points fan motor connector plug on indoor main PCB Page 31 KSSSI90 ...

Page 32: ...eared Check for supply AC voltage between the CN1 Neutral connector point the centre pin of the CN4 connector socket located on the indoor main PCB Note If supply voltage is available at these two points E3 error still exists replace the indoor fan motor CN4 connector plug socket CN1 Neutral connector point CN4 connector plug point on indoor main PCB CN25 connector plug point on indoor main PCB Pa...

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