Panasonic KIT-RE12-PKE User Manual
Optional accessories for old models
Replacement anti-allergen filter
PIPE REDUCER (for Multi)
PIPE EXPANDER (for Multi)
CS-E9/12/15/18/21HKEA
CS-PW9/12/18GKE, CS-PW24JKE, CS-V7DKE,
CS-V9DKE, CS-V12DKE, CS-V18DKE, CS-V24DKE,
CS-V28EKE, CS-E15DTEW, CS-E18DTEW, CS-E21DTES
CS-V9DKE, CS-V12DKE, CS-V18DKE, CS-V24DKE,
CS-V28EKE, CS-E15DTEW, CS-E18DTEW, CS-E21DTES
CS-RE9/12/18/24NKE
CZ-MA1P is to be used to reduce the connection size
on the indoor unit to 3/8". CS-E15/18/PKEW,
CS-E15/18DTEW, CS-E15/18HB4EA, CS-E15/18JD3EA,
CS-E18GFEW, CS-E18GFEW, CS-XE15/18PKEW
on the indoor unit to 3/8". CS-E15/18/PKEW,
CS-E15/18DTEW, CS-E15/18HB4EA, CS-E15/18JD3EA,
CS-E18GFEW, CS-E18GFEW, CS-XE15/18PKEW
CZ-MA2P is to be used to increase the connection
size on the outdoor unit to 1/2". CS-E21PKEW,
CS-XE21PKEW, CS-E21JB4EA
size on the outdoor unit to 1/2". CS-E21PKEW,
CS-XE21PKEW, CS-E21JB4EA
CZ-SA13P
CZ-SA14P
CZ-MA1P
H51
Vacuum Nozzle Failure
This display appears when the vacuum nozzle stop.
This trouble display appears when suction nozzle stop at centre of the Filter Cleaning device: 1. Check the
filter setting position. 2. Check the nozzle drive stepper motor running condition.
This trouble display appears when suction nozzle stop at left side of Filter Cleaning device: 1. Check vacuum
nozzle position. 2. Check the left limit switch switching function by multitester.
This trouble display appears when suction nozzle stop at left side of Filter Cleaning Device: 1. Check the Right
Limit Switch switching function by multitester.
filter setting position. 2. Check the nozzle drive stepper motor running condition.
This trouble display appears when suction nozzle stop at left side of Filter Cleaning device: 1. Check vacuum
nozzle position. 2. Check the left limit switch switching function by multitester.
This trouble display appears when suction nozzle stop at left side of Filter Cleaning Device: 1. Check the Right
Limit Switch switching function by multitester.
H52
Limit Switch Failure
This display appears when both Limit Switch (left & right) detected short circuit.
1. Unplug the CNSIDESW connector and check Pin 1-2 and Pin 3-4 condition on PCB.
2. Check wiring condition at limit switch (left & right).
3. Check switching function of limit switch (left & right).
2. Check wiring condition at limit switch (left & right).
3. Check switching function of limit switch (left & right).
H97
Outdoor fan motor
mechanism lock
mechanism lock
CU-2E: When trouble, which is defi ned as a state in which the fan motor speed is not synchronized with the control
signal has been detected on 5 successive occasions, has occurred for the third time in a 60-minute period and twice
during a 30-minute period, the trouble display appears, and operation stops. CU-3E/4E: When the fan motor speed
detected when its maximum output is demanded is below 30 rpm continuously for 15 seconds, the fan motor stops
for 3 minutes and then restarted. When this happens on 16 occasions (the trouble display is cleared when the value
is normal for 5 minutes), the H97 diagnostic symbol is stored in the memory, and the fan motor stops.
signal has been detected on 5 successive occasions, has occurred for the third time in a 60-minute period and twice
during a 30-minute period, the trouble display appears, and operation stops. CU-3E/4E: When the fan motor speed
detected when its maximum output is demanded is below 30 rpm continuously for 15 seconds, the fan motor stops
for 3 minutes and then restarted. When this happens on 16 occasions (the trouble display is cleared when the value
is normal for 5 minutes), the H97 diagnostic symbol is stored in the memory, and the fan motor stops.
1. Check the nature of the fan lockup trouble.
2. Check for disconnections of the fan motor connectors and for defects in contact, in the fan motor and in
the control PCB.
2. Check for disconnections of the fan motor connectors and for defects in contact, in the fan motor and in
the control PCB.
H98
Indoor high pressure
protection
protection
The restriction on the compressor frequency is started when the temperature of the indoor unit heat exchanger
source is between 50°C and 52°C, the compressor stops at a temperature from 62°C to 65°C, it is restarted 3
minutes later at below 62°C to 65°C, and the restriction on the compressor frequency is released at a
temperature between 48°C and 50°C. (No trouble display appears.)
source is between 50°C and 52°C, the compressor stops at a temperature from 62°C to 65°C, it is restarted 3
minutes later at below 62°C to 65°C, and the restriction on the compressor frequency is released at a
temperature between 48°C and 50°C. (No trouble display appears.)
1. Check the indoor unit heat exchanger temperature sensor (check for changes in its characteristics and
check its resistance): Symptoms include no hot start when operation is started, a failure of the thermostat to
turn on (no outdoor unit operation). And frequent repetition of stopping and startup.
2. Check also for short circuits indoors and clogging of the air fi lters.
check its resistance): Symptoms include no hot start when operation is started, a failure of the thermostat to
turn on (no outdoor unit operation). And frequent repetition of stopping and startup.
2. Check also for short circuits indoors and clogging of the air fi lters.
H99
Indoor operating unit
freezing
freezing
The restriction on the compressor frequency is started when the indoor unit heat exchanger temperature is
between 8°C and 12°C. Operation stops if a temperature below 0°C continues for 6 minutes. Three minutes later,
operation is started up at a temperature from 3°C to 8°C. The restriction on the compressor frequency is released
at a temperature between 13°C and 14°C.
between 8°C and 12°C. Operation stops if a temperature below 0°C continues for 6 minutes. Three minutes later,
operation is started up at a temperature from 3°C to 8°C. The restriction on the compressor frequency is released
at a temperature between 13°C and 14°C.
1. A cooling or dry mode operation conducted at a low outside air temperature is mainly to blame: this is not indicative
of any malfunctioning. If the outside air temperature rises during automatic operation in the winter months, the dry
mode operation is selected. The H99 diagnostic display also appears at such a time.
2. Check the refrigerating cycle: Gas may be leaking (the amount of refrigerant is low) or a pipe may be broken, etc.
3. Check also for short circuits indoors and clogging of the air fi lters.
of any malfunctioning. If the outside air temperature rises during automatic operation in the winter months, the dry
mode operation is selected. The H99 diagnostic display also appears at such a time.
2. Check the refrigerating cycle: Gas may be leaking (the amount of refrigerant is low) or a pipe may be broken, etc.
3. Check also for short circuits indoors and clogging of the air fi lters.
F11
4-way valve switching
failure
failure
CU-2E: When the indoor unit heat exchanger temperature is under -5°C during a warming operation or above 45°C
during a cooling or dry mode operation four minutes after the compressor has started up, the F11 diagnostic
symbol is stored in the memory, and operation stops. 3 minutes later, operation is restarted. This trouble display
appears when this happens on 4 occasions in a 30 minutes period.
CU-3E/4E: When a difference of 0°C to 5°C has been detected between the outdoor unit heat exchanger
temperature and liquid side pipe temperature on 5 occasions, the trouble display appears.
during a cooling or dry mode operation four minutes after the compressor has started up, the F11 diagnostic
symbol is stored in the memory, and operation stops. 3 minutes later, operation is restarted. This trouble display
appears when this happens on 4 occasions in a 30 minutes period.
CU-3E/4E: When a difference of 0°C to 5°C has been detected between the outdoor unit heat exchanger
temperature and liquid side pipe temperature on 5 occasions, the trouble display appears.
1. Check the 4-way valve coil: Check that no power is supplied to the coil during cooling and dry mode
operations, and that power is supplied during heating operations. Inspect the coil for broken wires (open
circuits).
2. If the coil is troublefree, the switching action of the 4-way valve may be defective.
operations, and that power is supplied during heating operations. Inspect the coil for broken wires (open
circuits).
2. If the coil is troublefree, the switching action of the 4-way valve may be defective.
F17
Indoor standBy units
freezing
freezing
CU-2E: After the operation of one indoor unit stops continuously for 5 minutes. The hole operation stops when the
stopping indoor unit pipe temperature is under -5°C continuously for 1 minute or under 0°C continuously for 5
minutes, and operation restarts after 3 minutes. This trouble display appears if that trouble happens on 3
occasions in a 30 minutes period.
CU-3E/4E: When the difference of an intake temperature (room temperature sensor) and the indoor unit heat
exchanger temperature (piping sensor) is higher than 10°C or an indoor unit heat exchanger temperature of below
-1°C has been detected continuously for 5 minutes, operation stops. Three minutes later, it is started up, and the
trouble display appears when this has occurred on 3 consecutive occasions.
stopping indoor unit pipe temperature is under -5°C continuously for 1 minute or under 0°C continuously for 5
minutes, and operation restarts after 3 minutes. This trouble display appears if that trouble happens on 3
occasions in a 30 minutes period.
CU-3E/4E: When the difference of an intake temperature (room temperature sensor) and the indoor unit heat
exchanger temperature (piping sensor) is higher than 10°C or an indoor unit heat exchanger temperature of below
-1°C has been detected continuously for 5 minutes, operation stops. Three minutes later, it is started up, and the
trouble display appears when this has occurred on 3 consecutive occasions.
1. Check the refrigerating cycle: Expansion valve leakage.
2. Check the indoor unit pipe temperature sensor (check for changes in its characteristics and check its
resistance).
2. Check the indoor unit pipe temperature sensor (check for changes in its characteristics and check its
resistance).
F90
PFC circuit protection
(CU-2E)
(CU-2E)
CU-2E: When the reputation of the compressor is not synchronized with the control signal, the F93 diagnostic
display is stored in the memory, and operation stops. 3 minutes later, operation is restarted. This trouble display
appears when this happens on 4 occasions in a 20 minutes period. CU-3E/4E: When a state in which the rotation
of the compressor is not synchronized with the control signal has been detected on 8 successive occasions,
operation stops, and the trouble display appears.
display is stored in the memory, and operation stops. 3 minutes later, operation is restarted. This trouble display
appears when this happens on 4 occasions in a 20 minutes period. CU-3E/4E: When a state in which the rotation
of the compressor is not synchronized with the control signal has been detected on 8 successive occasions,
operation stops, and the trouble display appears.
1. To check whether the 2-way or 3 -way valve has been left open by mistake, operation is performed for one to
several minutes after the compressor has started up, F93 is stopped in the memory as the symptom, and
operation stops.
2. Check the Inverter circuit (for open circuits) in the control PCB: Check the IPM base current (6 locations)
within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the memory 30
seconds after the compressor has started up, and operation stops. The trouble display appears after 4 restarts.
3. Check for broken wires (open circuits) in the compressor winding: Approximately 1 ohm under normal
conditions for each phase (same symptom as in 2.)
several minutes after the compressor has started up, F93 is stopped in the memory as the symptom, and
operation stops.
2. Check the Inverter circuit (for open circuits) in the control PCB: Check the IPM base current (6 locations)
within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the memory 30
seconds after the compressor has started up, and operation stops. The trouble display appears after 4 restarts.
3. Check for broken wires (open circuits) in the compressor winding: Approximately 1 ohm under normal
conditions for each phase (same symptom as in 2.)
Main circuit low voltage
(CU-3E/4E)
(CU-3E/4E)
F91
Refrigeration cycle
abnormality
abnormality
CU-2E: When the rotation speed of the compressor exceeds the setting frequency and the total current is 1.5A or
higher to 1.9A or lower continuously for 5 minutes, operation stops if the indoor unit heat exchanger temperature is
higher than 20°C during cooling or dry operation or if it is under 25°C during heating. Three minutes later, it is
restarted, and if the trouble occurs on 2 consecutive occasions in a 20 minutes period, the trouble display appears.
CU-3E/4E: When the compressor frequency is above 55 Hz and the current drops below the prescribed level
continuously for 7 minutes, operation stops, and it is restarted 3 minutes later. When the compressor discharge
temperature has exceeded the setting and the expansion valve has remained fully open for 80 seconds, operation
stops, and it is restarted 3 minutes later. When the stopping described above has occurred on 4 occasions,
operation stops, and the trouble display appear.
higher to 1.9A or lower continuously for 5 minutes, operation stops if the indoor unit heat exchanger temperature is
higher than 20°C during cooling or dry operation or if it is under 25°C during heating. Three minutes later, it is
restarted, and if the trouble occurs on 2 consecutive occasions in a 20 minutes period, the trouble display appears.
CU-3E/4E: When the compressor frequency is above 55 Hz and the current drops below the prescribed level
continuously for 7 minutes, operation stops, and it is restarted 3 minutes later. When the compressor discharge
temperature has exceeded the setting and the expansion valve has remained fully open for 80 seconds, operation
stops, and it is restarted 3 minutes later. When the stopping described above has occurred on 4 occasions,
operation stops, and the trouble display appear.
Check the refrigerating cycle: Gas may be leaking (more than onehalf of the volume of the gas has gone). The
diagnostic displays resulting from a gas leak generally change in the following sequence depending on the
extent of the gas leak: H99 > F97 > F91 > H16. The range of this trouble (F91) is limited. (Compressor
protection at the start of the season).
diagnostic displays resulting from a gas leak generally change in the following sequence depending on the
extent of the gas leak: H99 > F97 > F91 > H16. The range of this trouble (F91) is limited. (Compressor
protection at the start of the season).
F93
Compressor abnormal
revolution
revolution
CU-2E: When the reputation of the compressor is not synchronized with the control signal, the F93 diagnostic
display is stored in the memory, and operation stops. 3 minutes later, operation is restarted. This trouble display
appears when this happens on 4 occasions in a 20 minutes period. CU-3E/4E: When a state in which the rotation
of the compressor is not synchronized with the control signal has been detected on 8 successive occasions,
operation stops, and the trouble display appears.
display is stored in the memory, and operation stops. 3 minutes later, operation is restarted. This trouble display
appears when this happens on 4 occasions in a 20 minutes period. CU-3E/4E: When a state in which the rotation
of the compressor is not synchronized with the control signal has been detected on 8 successive occasions,
operation stops, and the trouble display appears.
1. To check whether the 2-way or 3 -way valve has been left open by mistake, operation is performed for one to
several minutes after the compressor has started up, F93 is stopped in the memory as the symptom, and
operation stops.
2. Check the Inverter circuit (for open circuits) in the control PCB: Check the IPM base current (6 locations)
within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the memory 30
seconds after the compressor has started up, and operation stops. The trouble display appears after 4 restarts.
3. Check for broken wires (open circuits) in the compressor winding: Approximately 1 ohm under normal
conditions for each phase (same symptom as in 2.)
several minutes after the compressor has started up, F93 is stopped in the memory as the symptom, and
operation stops.
2. Check the Inverter circuit (for open circuits) in the control PCB: Check the IPM base current (6 locations)
within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the memory 30
seconds after the compressor has started up, and operation stops. The trouble display appears after 4 restarts.
3. Check for broken wires (open circuits) in the compressor winding: Approximately 1 ohm under normal
conditions for each phase (same symptom as in 2.)
F95
Outdoor high pressure
protection
protection
CU-2E only: When the temperature of the outdoor unit heat exchanger temperature sensor exceeds 63°C, the F95
diagnostic symbol is stored in the memory, and operation stops. 3 minutes later, operation is restarted at a
temperature below 56°C. This trouble display appears when this happens on 4 occasions in a 20-minutes period.
diagnostic symbol is stored in the memory, and operation stops. 3 minutes later, operation is restarted at a
temperature below 56°C. This trouble display appears when this happens on 4 occasions in a 20-minutes period.
1. Check the outdoor unit heat exchanger temperature sensor (check for changes in its characteristics and
check its resistance).
2. Check whether something is interfering with the dissipation of the heat outdoors.
check its resistance).
2. Check whether something is interfering with the dissipation of the heat outdoors.
F96
Power transistor
module or compressor
overheating (CU-2E)
Compressor high
discharge temperature
(CU-3E/4E)
module or compressor
overheating (CU-2E)
Compressor high
discharge temperature
(CU-3E/4E)
CU-2E: Heating is detected inside the IPM which shuts itself off, the F96 diagnostic symbol is stored in the
memory, and operation stops. 3 minutes later, operation is restarted. The trouble display appears when this
happens on 4 occasions in a 30-minutes period.
CU-3E/4E: When this trouble is detected from the electrical parts radiation fi n temperature sensor and OLP
output during operation, operation stops, and it is restarted 3 minutes later. If the trouble occurs on 4 occasions,
operation stops, and the trouble display appears.
memory, and operation stops. 3 minutes later, operation is restarted. The trouble display appears when this
happens on 4 occasions in a 30-minutes period.
CU-3E/4E: When this trouble is detected from the electrical parts radiation fi n temperature sensor and OLP
output during operation, operation stops, and it is restarted 3 minutes later. If the trouble occurs on 4 occasions,
operation stops, and the trouble display appears.
1. Something may be interfering with the dissipation of the heat outdoors or the outdoor unit fan may be
defective. (The outdoor unit fan is not running.).
2. Defective IPM (outdoor unit control PCB).
3. Gas leaks. 2-way or 3-way valve is not opened.
defective. (The outdoor unit fan is not running.).
2. Defective IPM (outdoor unit control PCB).
3. Gas leaks. 2-way or 3-way valve is not opened.
F97
Compressor high
discharge temperature
discharge temperature
When the temperature of the compressor temperature sensor exceeds 112 to 120°C, the F97 diagnostic symbol is
stored in the memory, and operation steps. Two minutes later, operation is restarted at a temperature below 107
to 110°C.
CU-2E: The trouble display appears and operation stops when this happens on 4 occasions in a 20 minutes period.
CU-3E/4E: This trouble display appears and operation stops when this happens on 6 occasions (it is cleared when
the operation is normal for 20 minutes).
stored in the memory, and operation steps. Two minutes later, operation is restarted at a temperature below 107
to 110°C.
CU-2E: The trouble display appears and operation stops when this happens on 4 occasions in a 20 minutes period.
CU-3E/4E: This trouble display appears and operation stops when this happens on 6 occasions (it is cleared when
the operation is normal for 20 minutes).
1. Check the refrigerating cycle: Gas may be leaking (the amount of refrigerant is low). The stopping of the
outdoor unit from time to time is a symptom of this trouble.
2. When operation steps with this trouble display appearing, check the compressor temperature sensor (check
for changes in its characteristics and check its resistance).
3. Something may be interfering with the dissipation of the heat outdoors or the outdoor unit fan may be
defective. (The fan will not run because of an open circuit.) (The protection function may be activated by an
overload, and the F97 trouble display will remain stored in the memory.).
outdoor unit from time to time is a symptom of this trouble.
2. When operation steps with this trouble display appearing, check the compressor temperature sensor (check
for changes in its characteristics and check its resistance).
3. Something may be interfering with the dissipation of the heat outdoors or the outdoor unit fan may be
defective. (The fan will not run because of an open circuit.) (The protection function may be activated by an
overload, and the F97 trouble display will remain stored in the memory.).
F98
Total running current
protection
protection
CU-2E: When the total current exceeds the setting, the F98 diagnostic display is stored in the memory, and
operation stops. 3 minutes later, operation is restarted. The trouble display appears and operation stops when this
happens on 3 occasions in a 20-minutes period.
CU-3E/4E: When the total current exceeds the setting (17A to 20A), frequency control is started, and if it then
exceeds the setting, operation stops, and the trouble display appears.
operation stops. 3 minutes later, operation is restarted. The trouble display appears and operation stops when this
happens on 3 occasions in a 20-minutes period.
CU-3E/4E: When the total current exceeds the setting (17A to 20A), frequency control is started, and if it then
exceeds the setting, operation stops, and the trouble display appears.
1. Check the AC voltage at the outdoor unit terminal board during operation: The voltage drop must be within
5% of the voltage when operation has stopped (± 110% of rated voltage even during operation). If the voltage
drop exceeds 5% or if the voltage changes suddenly, inspect whether the power supply cord and indoor/
outdoor unit connection cables are too long or too small in diameter, etc.
2. Check whether something is interfering with the dissipation of the heat outdoors (during cooling operations):
Normally, the capacity is limited by the current so that the outdoor unit don’t stop, and the diagnostic display
does not appear.
5% of the voltage when operation has stopped (± 110% of rated voltage even during operation). If the voltage
drop exceeds 5% or if the voltage changes suddenly, inspect whether the power supply cord and indoor/
outdoor unit connection cables are too long or too small in diameter, etc.
2. Check whether something is interfering with the dissipation of the heat outdoors (during cooling operations):
Normally, the capacity is limited by the current so that the outdoor unit don’t stop, and the diagnostic display
does not appear.
F99
DC peak detection
CU-2E: If the current level exceeds 22.5A after startup, the compressor stops, and it is restarted 3 minutes later.
When this occurs on 7 consecutive occasions, operation stops, and the trouble display appears.
CU-3E/4E: When “Output current trouble”, which occurs when the prescribed current level is exceeded, has
occurred on 16 consecutive occasions, operation stops, and the trouble display appears.
When this occurs on 7 consecutive occasions, operation stops, and the trouble display appears.
CU-3E/4E: When “Output current trouble”, which occurs when the prescribed current level is exceeded, has
occurred on 16 consecutive occasions, operation stops, and the trouble display appears.
1. Check whether the compressor is defective (locked up or shorted winding). Check the outdoor unit control
PCB.
PCB.
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DOMESTIC