If the following phenomena are found, the problem is not from the
air-conditioner itself.
Problems The motor is heard operating but the air-conditioner dose not work when the indoor unit is powered on
Causes Since the air-conditioner is powered on, it will come to working condition as long as you press the ON/OFF button of the remote control and the Signal is well received.
Problems The compressor stops running but the indoor fan motor keeps working when it is at cooling mode with the indoor temperature higher than set temperature.
Causes If you turn off the air-conditioner and restart it immediately, it will return to normal in 3 minutes, after that, the air-conditioner will automatically adjust the indoor fan speed to what you set.
Problems The compressor works discontinuously at dehumidifying mode.
Causes The air-conditioner will automatically control the working of the compressor according to the inside temperature
Problems The air-conditioner does not work while the LED display is on.
Causes The TIMER is set with the air-conditioner; it will be in hold on condition. If the TIMER setting is cancelled, the air conditioner will return to normal working condition
Problems The compressor works discontinuously at cooling and dehumidifying mode, and the indoor fan motor slows down.
Causes The compressor stops internally or the fan motor slows down to prevent the indoor heat exchanger from being frozen.
Error Codes;
Aux Air Conditioner Error Codes
1.HS(Y) HSA(Y) HSB(Y) HSF (Y) HV(Y) HVA(Y) digital display for the series air-conditioner faults:
Error Codes
Problem
E1
Plastic temp sensor is abnormal. The display precedence level: 2
E2
Copper temp sensor is abnormal (outdoor). The display precedence level: 4
E3
Copper temp sensor is abnormal (indoor). The display precedence level: 3
E4
PG motor feedback is abnormal. The display precedence level: 1
E5
Abnormality of outdoor unit
E6
Over-current oprotection
E7
External feedback failure
E8
Overheat protection
E9
Water pump failure
dF
Indicates "dF"or defrosting indicator displays
L1
Failure of coiled pipe sensor
L2
Failure of room temperature sensor
L6
Without feedback of internal fan motor
Wiring Diagram
2. H (Except KFR-25G/H) H1 HA HB series faults display:
Fault source: PG motor feedback is abnormal
Display mode: Timing light twinkles 4 times in every 8 seconds
The display precedence level: 1
Fault source: Plastic temp sensor is abnormal
Display mode: Timing light twinkles 1 times in every 8 seconds
The display precedence level: 2
Fault source: Copper temp sensor is abnormal (indoor)
Display mode: Timing light twinkles 2 times in every 8 seconds
The display precedence level: 3
Fault source: Copper temp sensor is abnormal (indoor)
Display mode: Timing light twinkles 1 times in every 1 seconds
The display precedence level: 4
3. H(Y) Model air conditioner fault display:
Fault source: PG motor feedback is abnormal
Display mode: Timing light twinkles 4 times in every 8 seconds
The display precedence level: 1
Fault source: Plastic temp sensor is abnormal
Display mode: Timing light twinkles 1 times in every 8 seconds
The display precedence level: 2
Fault source: Copper temp sensor is abnormal (indoor)
Display mode: Timing light twinkles 2 times in every 8 seconds
The display precedence level: 3
Fault source: Copper temp sensor is abnormal (outdoor)
Display mode: Timing light twinkles 1 times in every 1 seconds
The display precedence level: 4
4. EA EC EM EY EZ EAA EAD EL HS1 HSZ HL1 HLZ P P1 ZZ CZ digital display series ac faults:
Fault source: PG motor feedback is abnormal
Display mode: E4
The display precedence level: 1
Fault source: Plastic temp sensor is abnormal
Display mode: E1
The display precedence level: 2
Fault source: Copper temp sensor is abnormal (indoor)
Display mode: E3
The display precedence level: 3
Aux Air Conditioner Remote Control
5. All of the other E series except EA EC EM EY EZ EAA EAD:
Fault source: PG motor feedback is abnormal
Display mode: Timing light twinkles 4 times in every 8 seconds
The display precedence level: 1
Fault source: Plastic temp sensor is abnormal
Display mode: Timing light twinkles 1 times in every 8 seconds
The display precedence level: 2
Fault source: Copper temp sensor is abnormal (indoor)
Display mode: Timing light twinkles 2 times in every 8 seconds
The display precedence level: 3
6. QA QB QD digital display series ac faults:
Fault source: PG motor feedback is abnormal
Display mode: E4
The display precedence level: 1
Fault source: Plastic temp sensor is abnormal
Display mode: E1
The display precedence level: 2
Fault source: Copper temp sensor is abnormal
Display mode: E3
The display precedence level: 3
Fault source: Over-current oprotection
Display mode: E6
The display precedence level: 4
7. QC QQ light display series air-conditioner faults:
Fault source: PG motor feedback is abnormal
Display mode: Timing light twinkles 4 times in every 8 seconds
The display precedence level: 1
Fault source: Plastic temp sensor is abnormal
Display mode: Timing light twinkles 1 times in every 8 seconds
The display precedence level: 2
Fault source: Copper temp sensor is abnormal
Display mode: Timing light twinkles 3 times in every 8 seconds
The display precedence level: 3
Fault source: Over-current oprotection
Display mode: Timing light twinkles 6 times in every 8 seconds
The display precedence level: 4
8. Faults display of 18000BTU~24000BTU wall unit series ac non-digital tube displays:
Fault source: PG motor feedback is abnormal
Display mode: Timing light twinkles 1 times in every 8 seconds
The display precedence level: 2
appearance: System turns off
Fault source: Plastic temp sensor is abnormal
Display mode: Timing light twinkles 2 times in every 8 seconds
The display precedence level: 3
appearance: System turns off
Fault source: Copper temp sensor is abnormal
Display mode: Timing light twinkles 8 times in every 8 seconds
The display precedence level: 4
appearance: System doesn’t turns off
Digital tube displays:
Fault source: PG motor feedback is abnormal
Display mode: E1
The display precedence level: 2
appearance: System turns off
Fault source: Plastic temp sensor is abnormal
Display mode: E3
The display precedence level: 3
appearance: System turns off
Fault source: Copper temp sensor is abnormal
Display mode: E2
The display precedence level: 4
appearance: System doesn’t turn off
E1: Temperature sensor of air intake fault
E2: Temperature sensor of outdoor coil fault
E3: Temperature sensor of indoor coil fault
E4: PG motor of indoor unit feedback fault
AUX Air Conditioning Wall Mounted Error Codes
AUX Air Conditioning Wall Mounted Error Codes
Self-check information: Hint to defrosting
Self-check code of luminotron: Flicker 1 time/1s
Digital self-check code: Indicates “dF“or defrosting indicator displays
Self-check information: Hint to defense against cold wind
Self-check code of luminotron: Flicker 1 time/3s
Digital self-check code: Fan motor picture not running
Self-check information: Failure of room temperature sensor
Self-check code of luminotron: Flicker 2 times/4s (Flicker 2 times/8s)
Digital self-check code: E2/(L2)
Self-check information: Failure of coiled pipe sensor
Self-check code of luminotron: Flicker 3 times/5s (Flicker 1 time/8s)
Digital self-check code: E3/(L1)
Self-check information: Abnormality of outdoor unit
Self-check code of luminotron: Flicker 4 times/6s (luminating)
Digital self-check code: E4/(E5)
Self-check information: Without feedback of internal fan motor
Self-check code of luminotron: Flicker 5 times/7s (Flicker 6 times/8s)
Digital self-check code: E5/(L6)
Self-check information: Zero crossing signal without current
Self-check code of luminotron: Flicker 6 times/8s
Digital self-check code: E6
Self-check information: External feedback failure
Self-check code of luminotron: Flicker 7 times/9s
Digital self-check code: E7
Self-check information: Overheat protection
Self-check code of luminotron: Flicker 8 times/10s
Digital self-check code: E8
Self-check information: Water pump failure
Self-check code of luminotron: Flicker 9 times/11s
The bigger the house the cooling problems becomes greater if not controlled with the HVAC technician. Heating and Cooling Unionville The article is really on the point.
System messages are shown on the display screen of the Comfort controller via the displays A1 to A20 and E0. Rittal Air Conditioner Error Codes Error Codes System message Possible cause A1 Enclosure door open Door open or door limit switch incorrectly positioned A2 Internal temperature of enclosure too high Cooling capacity inadequate/unit undersized. Error as a consequence of messages A03 to A17. A3 Filter monitoring Filter mat soiled A4 Ambient temperature too high/too low Ambient temperature outside of admissible operating range (+10°C to +60°C) A5 Icing hazard Operational display in case of icing hazard. A6 PSAH pressure-operated switch Ambient temperature too high A7 Evaporator coil Lack of coolant; sensor in front of or behind condenser defective. A8 Condensate warning Condensate discharge kinked or blocked A9 Condenser fan blocked or defective Blocked or defective A10 Evaporator fan blocked or defective Blocked or defective A11 Compressor Compressor overloaded A12 Condenser Op
Real Time Error Numbers York Chiller Error Codes and Troubleshooting Error Description 0 All Ok 1 Datum Type Ok Test Failed 2 English Text Too Long 3 Floating Point Exception 4 Get Packet Failed 5 Get Type Failed 6 Invalid Unit Conversion 7 Invalid Hardware Selection 8 Real Time Fault 9 Spanish Text Too Long 10 Thread Exited 11 Thread Failed 12 Thread Stalled 13 Io Board Reset 14 Bram Invalid 15 Bacnet Setup Failed Problem: No display on panel – unit will not start Possible Cause: Main supply to control system OFF. Emergency stop device off. CB3 tripped. No supply to – T2 No 24VAC supply to power board. No +12V output from powerboard. Action: Switch on main supply if safe to do so. Check if control panel emergency stop switch and any remote emergency stop devices are in the OFF position. Turn to ON position (1) if safe to do so. Check CB3 Check 115VAC to L & 2. Check wiring from – T2 to powerboard and fuse. Replace powerboard or isolate excessive load on the board. Problem: NO
Malfunction and Protection Code Table. The display board in digital scroll system is just to display running conditions and malfunction information. The manual button is just to check the address code and power code of indoor units. York VRF Error Codes Malfunction and Protection Code Table: Error Codes Contents E0 Phase sequence or lack of phase E1 Communication malfunction E2 T1 sensor malfunction E3 T2A sensor malfunction E4 T2B sensor malfunction E5 T3 sensor malfunction E6 Over-zero checking malfunction E7 EEPROM malfunction E8 Fan motor checking out of control E9 Communication malfunction between PCB and Display board EF Other malfunction EE Water level checking malfunction ED Outdoor protection EC Clear malfunction EB Inverter Module Protection EA Compressor Over-current (4 times) P0 Evaporator Temp. Protection P1 Anti-cooling or Defrost Protection P2 Condenser High Temp. Protection P3 Compressor Temp. Protection P4 Discharge Pipe Temp. Protection P5 Discharge High-pressure
The bigger the house the cooling problems becomes greater if not controlled with the HVAC technician. Heating and Cooling Unionville The article is really on the point.
ReplyDeleteWhats E5 in aux air conditioner??
ReplyDeleteCL
ReplyDeleteAUX Non invader Errar-CL
ReplyDelete