18
If your air conditioner is not working properly, please check the following before asking for help. After checking the
following point and the A/C is still not working normally, please contact the nearest service center to examine it.
The A/C does not start
The A/C stops soon after
started, screen displays
“E1”
The A/C stops soon after
started, screen displays
“E2”
TEMP. indicates 0
and
the COOL mode is not
working
Poor cooling performance
Poor heating performance
1. No power
2. Electricity leakage switch shut down
3. Voltage too low
4. Operation key turned off
5. Controlling circuit troubles
1. Blocking in front of condenser
2. Controlling circuit troubles
3. Cooling operation when outdoor temp. is
above 43
4. The tube pressure is too high.
1. Indoor fan motor doesn’t work or air outlet
get blocked
2. Indoor temp. is below 18
3. Wire of tube temp. sensor broken
4. Tube temp. sensor not in place
5. Controlling circuit troubles
6. Electricity leakage of capacitor
1. Wire of room temp. sensor broken
2. room temp. sensor not in place
3. Electricity leakage of capacitor
1. Air filter is too dirty or get clogged
2. There are too many people or heating sources
in the room
3. Door or window opened
4. Air in/out is blocked
5. Set temp. too high
6. Leakage of refrigerant
7. Poor performance of room temp. sensor
1. Air filter is too dirty or get clogged
2. Door or window opened
3. Set temp. too low
4. Leakage of refrigerant
5. Outdoor temp. below-5
6. Controlling circuit troubles
1. Connect to power supply
2. Contact service center
3. Contact electrician or dealer
4. Press Operation key again
5. Contact service center
1. Clear blocking
2. Contact service center
3. Put outdoor unit at shady place
4. Contact service center
1. Contact service center
2. Check if there is the need to turn on the A/C
3. Contact service center
4. Fit tube temp. sensor into place
5. Contact service center
6. Contact service center
1. Connect wire of room temp. sensor
2. Fit room temp. sensor into place
3. Contact service center
1. Clean air filter
2. Clear heating sources if possible
3. Close door and window
4. Clear blocking to insure free air flow
5. Set lower temp.
6. Contact service center
7. Replace room temp. sensor
1. Clean air filter
2. Close door and window
3. Set higher temp
4. Contact service center
5. Heating performance is affected
6. Contact service center
Troubles
Possible Causes
Solution
Trouble shooting
The A/C stops soon after
started, screen displays
“E3”.
The A/C stops soon after
started, screen displays
“E4”.
1.Leakage of refrigerant
2.Controlling circuit troubles
1.Contact service center
2.Contact service center
1.Leakage of refrigerant
2.Controlling circuit troubles
3.wire of sensor broken
4.Voltage is too low
1.Contact service center
2.Contact service center
3.Contact service center
4.Contact service center
Summary of Contents for RFI-66B
Page 4: ...3 STRUCTURE...
Page 8: ...7...
Page 9: ...8...
Page 10: ...9...
Page 11: ...10...
Page 12: ...11...
Page 13: ...12...
Page 14: ...13...
Page 15: ...14...
Page 16: ...15...
Page 28: ...1 2 3 4 5 16 17 18 19 20 21 23 24 25 7...
Page 29: ...2 1 10kw 2 5mm2 2 3 4 5 ON OFF 27 C 24 C 18 C 5 C 6 C 20 C...
Page 30: ...3...
Page 32: ...5 SWING FAN SPEED MODE o ON OFF SET TEMP 1 C 1 C 16 30 C 30 30 24 30 30 24 LCD LCD...
Page 33: ...6 3 6 3 1 LCD 5 2 LCD 5...
Page 34: ...7 MODE TEMP 1 C 1 C 16 C 30 C SWING FAN ON OFF...
Page 35: ...8 LIGHT TIMER OFF 30 24 SLEEP SLEEP TIMER ON 30 24...
Page 36: ...9 ON OFF 26 C 20 C 24 C...
Page 37: ...10 1 ON OFF 2 MODE 5 TEMP 3 SWING 4 FAN 1 C 1 C 16 C 30 C...
Page 38: ...11 1 ON OFF 4 FAN 2 MODE 5 TEMP 3 SWING 1 C 1 C 16 C 30 C...
Page 39: ...12 1 ON OFF 3 SWING 4 TEMP 2 MODE 2 C 2 C 2 C 16 C 30 C...
Page 40: ...13 TIMER OFF 30 24 TIMER ON 30 24...
Page 41: ...14 MODE SWING 4 FAN 1 ON OFF 5 TEMP SLEEP SLEEP Sleep 1 C 2 C Sleep 1 C 2 C...
Page 42: ...15 1 2 2 ACL 3 1 3 2...
Page 43: ...16 SWING Swing End Swing SWING 1 2...
Page 44: ...17 1 3 3 2 40 C 50 C 2...
Page 46: ...19 mm2 mm2 1 2 3 4 25A 2 5 1 5 380 RFI 66B RFO 66B 415V3N 50Hz 2 3 3...
Page 47: ...20 3 2 3 1 2 1 5 90 3 19 1 12 1 100mm...
Page 48: ...21 1 2 3 9mm 30cm 4cm 5cm 10cm 30cm 200cm 10cm 30cm 19 1 12 1...
Page 49: ...22 2 5 L1 L2 L3 N L1 L2 L3 N RFI 66B RFO 66B 25A...
Page 51: ...24 3 3 3 3 220V 60Hz...
Page 52: ...25 1 2 2 3 ST4 2X38 1 2 To...