29
8.3
Protection Codes
CODE
Indoor Unit
Display
Outdoor Unit LED
Compressor speed limited due to outdoor temperature
No display
Blinking 1 time - stopping for 3 sec.
Compressor speed limited due to outdoor pipe (condenser) temperature
No display
Blinking 2 times - stopping for 3 sec.
Compressor speed limited due to compressor pressing temperature
No display
Blinking 3 times - stopping for 3 sec.
Compressor speed limited due to board cooler temperature
No display
Blinking 4 times - stopping for 3 sec.
Compressor speed limited due to indoor unit exchanger temperature
No display
Blinking 5 times - stopping for 3 sec.
Defrost occurred
DF
Blinking 6 times - stopping for 3 sec.
Compressor speed limited due to current
No display
Blinking 10 times - stopping for 3 sec.
Supply frequency error
No display
Blinking 23 times - stopping for 3 sec.
Indoor unit environment sensor is on or short circuited
SR 01
No display
Outdoor unit pipe sensor is on or short circuited
SR 08
Blinking 14 times - stopping for 3 sec.
PFC circuit protection
No display
Blinking 12 times - stopping for 3 sec.
Wi-fi module communication error
ER 19
No display
PFC high voltage switch-off protection
No display
Blinking 28 times - stopping for 3 sec.
Sudden voltage drop/compressor protection
No display
Blinking 29 times - stopping for 3 sec.
DC supply voltage error
No display
Blinking 30 times - stopping for 3 sec
Excessive power error
No display
Blinking 31 times - stopping for 3 sec.
8.4
Troubleshooting Flow Charts
Error Code
(7 Segment)
Outdoor unit led
Indoor unit environment sensor error
SR 01
No display
NOTE 1:
Sensor errors given above contain precision. NTS resistances within the sensors are either short-circuited or open-circuited.
Sensor groups should be replaced when these errors are seen.
NOTE 2:
The former name of this error is ER 01. The error description was changed to SR 01 on all products that started to be used
as of 2015. This error does not cause the product to stop; the product continues the cooling or heating process according to 24°C
without regard to the environment sensor. However, it sends a malfunction signal to the customer by giving a signal on the indoor unit
display.
Error Code
(7 Segment)
Outdoor unit led
Compressor cable disconnected
ER 02
Blinking 25 times - stopping for 3 sec.
Display shows SR 01 error when
the air conditioner is switched on
via the remote control. (Indoor unit
environment sensor error)
Replace the indoor unit sensor group
Gives ER 02 error (outdoor unit
compressor cable is disconnected)
Outdoor unit LED signals 25 times
Check the U end of cables going from
the compressor to the main board.
Are there errors in connections? Are
there any disconnections, ruptures,
looseness etc. in the sockets?
Correct or replace the cables.
YES
NO
Measure the compressor coils. Is there
an open circuit in the coils?
Replace the compressor.
YES
Summary of Contents for ZS12V70CCHI
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Page 61: ...EN ...