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RAV-SM1100/1400UT-E
RAV-SM1100/1400AT-E
10-4-4. Check Code Table
RAV-SM1100UT-E, RAV-SM1400UT-E, RAV-SM1100AT-E, RAV-SM1400AT-E (A03-003)
Error mode detected by indoor unit (1)
Operation of diagnostic function
Block
display
Check
code
[MODE]
[TIMER] lamp
5Hz flash
Cause of operation
Status of air
conditioner
The serial signal is not output
Operation
from outdoor unit to indoor unit. continues
Judgment and measures
Condition
Displayed when 1. Outdoor unit does not completely
error is detected
operate.
• Miscabling of inter-unit cables
• Inter-unit cable check, correction of
miscabling
• Defective serial sending
circuit on outdoor P.C. board
• Outdoor P.C. board check, P.C. board
cables check
• Defective serial receiving
circuit on outdoor P.C. board
• Compressor case thermo check
• Compressor case thermo
operation
2. In normal operation
When outdoor sending serial LED
(Green) flashes, the receiving serial
LED (Orange) also flashes. : Indoor
P.C. board (Main P.C. board) check
When the receiving serial LED
(Orange) does not flash: Outdoor P.C.
board check
BUS communication circuit error Operation
Displayed when 1. Communication line check, miscabling
continues
error is detected
check
* BUS communication was
Power supply check for central
interrupted over the specified (According
to remote
controller (Central control remote
time.
controller of
controller, etc.) and indoor unit
indoor unit)
2. Communication check (XY terminal)
3. Indoor P.C. board check
4. Central controller check
(Communication P.C. board)
Network address miss-setting
• Addresses of central
controllers (Central control
remote controller, etc.) are
duplicated.
Operation
continues
Displayed when 1. Check central control system network
error is detected
address setting. (SW02)
2. Indoor P.C. board check
3. Central controller check
(Communication P.C. board)
Error in 4-way valve system
Operation
continues
• Indoor heat exchanger
temperature rise after start of
cooling operation.
Displayed when 1. Check 4-way valve.
error is detected 2. Check 2-way valve and non-return
valve.
3. Check indoor heat exchanger sensor
(TC).
• Indoor heat exchanger
temperature fall after start of
heating operation.
Error in other cycles
• Indoor heat exchanger temp
(TC) does not vary after start
of cooling/heating operation.
4. Check indoor P.C. board (Main P.C.
board).
Operation
continues
Displayed when 1. Compressor case thermo operation
error is detected 2. Coming-off of detection part of indoor
heat exchanger sensor
3. Check indoor heat exchanger sensor
(TC).
*
4. Check indoor P.C. board (Main P.C.
board).
[MODE] lamp
5Hz flash
Coming-off, disconnection or
short of indoor temp sensor
(TA)
Operation
continues
Displayed when 1. Check indoor temp sensor (TA).
error is detected 2. Check indoor P.C. board (Main P.C.
board).
Coming-off, disconnection or
short of indoor temp sensor
(TC)
Operation
continues
Displayed when 1. Check indoor temp sensor (TC).
error is detected 2. Check indoor P.C. board (Main P.C.
board).
Coming-off, disconnection or
short of indoor temp sensor
(TCJ)
Operation
continues
Displayed when 1. Check indoor temp sensor (TCJ).
error is detected 2. Check indoor P.C. board (Main P.C.
board).
* : No display in the setting at shipment
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