CS-BE25TKE, CU-BE25TKE, CS-BE35TKE, CU-BE35TKE, CS-BE50TKE, CU-BE50TKE, CS-TE20TKEW, CU-TE20TKE, CS-TE25TKEW, CU-TE25TKE, CS-TE35TKEW, CU-E35TKE, CS-TE42TKEW, CU-TE42TKE, CS-TZ20TKEW, CU-TZ20TKE, CS-TZ25TKEW, CU-TZ25TKE, CS-TZ35TKEW, CU-TZ35TKE, CS-TZ42TKEW, CU-TZ42TKE, CS-TZ50TKEW, CU-TZ50TKE - Panasonic Air Conditioner Service Manual Supplement (repair manual). Page 2

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2
1 Heat Only Operation
Effective date will be 1st of April Production model onwards.
Printed in Malaysia
1.1 
How to Activate/Deactivate Heat only Operation 
AUTO SW
is pressed
Emergency
Operation
Forced
Cooling
Operation
Forced
Cooling
Operation
Forced
Heating
Operation
Remote
Control
Number
Switch
Mode
Remote
Control
Receiving
Sound
OFF/ON
*Operation
Time Check
Mode
No
Setting
Mode
Heat Only
Mode
Enable/
Disable
AC reset code
AC reset code
AC reset code
AC reset code
AC reset code
CHECK
code
Beep
5s
8s
11s
16s
21s
26s
36s
BeepBeep
BeepBeepBeep BeepBeepBeepBeep
Beep
No
The unit will operate under forced cooling
mode continuously if “AC reset” code is
not pressed to activate standby
To enable the “Heat Only” mode, press the AUTO OFF/ON SW for more than 8s and less than 11s, “Beep Beep” 
sound will be heard, then release the AUTO OFF/ON SW and press remote controller CHECK button. A short 
“Beep” sound will be heard. “Heat Only” mode is now enable. 
To disable the “Heat Only” mode, press the AUTO OFF/ON SW for more than 8s and less than 11s, “Beep Beep” 
sound will be heard, then release the AUTO OFF/ON SW and press remote controller CHECK button. A long 
“Beep” sound will be heard. “Heat Only” mode is now disable. 
To pump down the unit during Heat Only Operation press AUTO switch for 5 seconds. 
1.2 
Operation mode during Heating Only Operation 
The table below shows the operation mode comparison when Heating Only Operation Mode Activated and 
Deactivated. 
Operation 
Mode 
Heating Only Operation Mode Activated 
Heating Only Operation Mode Deactivated 
AUTO
After 30s sampling, regardless of the indoor intake or 
outdoor intake temperature judgment, the unit will run 
Heating operation. 
After 30s sampling, the unit will judge the operation 
mode base on remote controller temperature setting and 
Indoor Intake Sensor (New Auto Mode) or Outdoor 
Intake Sensor (Old Auto Mode). 
HEAT 
The unit will run Heating operation. 
The unit will run Heating operation. 
COOL 
The unit will stop and Power LED blinking. 
The unit will run Cooling operation. 
DRY 
The unit will stop and Power LED blinking.
The unit will run Cooling Dry operation. 
NANOE-G 
Stand-alone 
The unit will stop and Power LED blinking. 
The unit will run Nanoe-G Stand-alone operation. 
Force Cooling 
The unit will run Force Cooling Operation for 
X_CTRYTM [15] minutes 
The unit will run Force Cooling operation. 
Force Heating 
The unit will run Force Heating operation. 
The unit will run Force Heating operation. 
AUTO
(with Timer) 
The unit will turn ON by the timer and run Auto 
Operation. After 30s sampling, regardless of the indoor 
intake or outdoor intake temperature judgment, the unit 
will run Heating operation. 
The unit will turn ON by the timer and run Auto 
Operation. After 30s sampling, the unit will judge the 
operation mode base on remote controller temperature 
setting and Indoor Intake Sensor (New Auto Mode) or 
Outdoor Intake Sensor (Old Auto Mode). 
HEAT
(with Timer) 
The unit will turn ON by the timer and run Heating 
Operation. 
The unit will turn ON by the timer and run Heating 
Operation. 
COOL 
(with Timer) 
The unit will not turn ON by the timer. Power LED 
blinking. 
The unit will turn ON by the timer and run Cooling 
Operation. 
DRY 
(with Timer) 
The unit will not turn ON by the timer. Power LED 
blinking. 
The unit will turn ON by the timer and run Cooling Dry 
Operation. 
Cooling
Test Mode 
The unit will stop and Power LED blinking. 
The unit will operate according to specify Cooling test 
mode operation parameter. 
Heating
Test Mode 
The unit will operate according to specify Heating test 
mode operation parameter. 
The unit will operate according to specify Heating test 
mode operation parameter. 
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