Mitsubishi Electric PURY error codes
Codes
- 0403Error codeSerial communication error: Serial communication error between the control board and the INV board on the compressor, and between the control board and the Fan board Detail code 1: Between the control board and the INV board Detail code 5, 6: Between the control board and the Fan board
- 0404Error codeA control communication reception error: Indoor controller board Abnormal if data cannot be read normally from the nonvolatile memory of the indoor controller board.
- 0910Error codeError Circuit check (detected unit) Using: Troubleshooting This error code is displayed by the circuit check target indoor unit to inform that the circuit check is under way.
- 0911Error codeCircuit check (other units): 1) This error code is displayed by indoor units that belong to the same shut off space as the circuit check target indoor unit to inform that the circuit check is under way. 2) This is a maintenance error code displayed by the indoor units connected to the same outdoor unit that does not belong to the same shut off space as the circuit check target indoor unit to inform that the circuit check is under way.
- 0912Error codeCircuit check (sensor kit): This error code is displayed on the BC controller and on the indoor units under circuit check for the sensor kit to indicate that a circuit check for the sensor kit is in progress.
- 1102Error codeAbnormal discharge air temperature: 1.If the discharge temperature of 120°C [248°F] or more is detected during the above operation (the first detection), the outdoor unit stops once, turns to anti-restart mode for 3 minutes, and restarts after 3 minutes automatically. 2.If the discharge temperature of 120°C [248°F] or more is detected again (the second detection) within 30 minutes after the second stop of the outdoor unit described above, the mode will be changed to 3minute restart mode, then the outdoor unit will restart in 3 min | Abnormal discharge air temperature: 1.If the discharge temperature of 120 °C[248°F] or more is detected during the above operation (the first detection), the outdoor unit stops once, turns to anti-restart mode for 3 minutes, and restarts after 3 minutes automatically. 2.If the discharge temperature of 120 °C[248°F] or more is detected again (the second detection) within 30 minutes after the second stop of the outdoor unit described above, the mode will be changed to 3minute restart mode, then the outdoor unit will restart in 3 min
- 1111Error codeLow pressure saturation temperature sensor abnormality (TH2): 1. When saturation temperature sensor (TH2) or liquid level de
- 1112Error code(Low pressure saturation tempera ture) Liquid level detection temp. sensor (TH4): 1.If the saturation temp. sensor TH3/4 or temp.
- 1113Error codeLiquid level detecting Low temperature sensor abnormality (TH3): Note: 1. Low press. saturation temperature trouble is not detected for 3 minutes after compressor start, and finish of defrosting operations, and during defrosting operations. 2. In the case of short/open of TH2~TH4 sensors before starting of compressor or within 10 minutes after starting of compressor, “1111,” “1112,” or “1113” is displayed too.
- 1301Error codeLow pressure abnoramlity: When starting from the stop mode for the first time, (if at the start of bind power transmission, the end of bind power transmission, and in the mode when the thermostat goes OFF immediately after the remote control goes ON, the following compressor start time is included), if the low pressure pressure sensor before starting is at 1.0 kg/cm2G (0.098MPa), operation stops immediately.
- 1302Error codeHigh pressure fault 1 (Outdoor unit): 1) If the pressure of 3.78MPa [548psi] or higher is detected by the pressure sensor during operation (the first detection), the outdoor stops once, turns to antirestart mode for 3 minutes, and restarts after 3 minutes automatically. | crease due to clogging of the heat exchanger The fan is not properly controlled as the outdoor temperature cannot be precisely detected by the
- 1368Error codeLiquid side controller) (BC abnoramlity pressure: When liquid side press, sensor, gas side pressure sensor, or intermediate pressure sensor detects 30kg/cm2G (2.94MPa) or more, error stop is observed with code No. “1368”, or “1370” displayed.
- 1370Error code(Abnormal high pressure [BC controller]) Intermediate
- 1500Error codeLiquid back error (detected by refrigerant temperature): An error can be detected by the shell bottom superheat (TH15 - Te). 1) If the formula "compressor bottom SH (TH15 - Te) ≤ 10ºC [18ºF]" is satisfied during operation (first detection), the outdoor unit stops, goes into the 3-minute restart mode, and starts up in three minutes. 2) If the formula "compressor bottom SH (TH15 - Te) ≤ 10ºC [18ºF]" is satisfied again within 40 minutes of the first stoppage of the outdoor unit (second detection), the unit comes to an abnormal stop, and the error code "1
- 1501Error codeLacked refrigerant abnormality abnormality refrigerant Insufficient: 1. When the unit condition is as follows, the compressor is stopped (1st detection) and after 3 minutes, the compressor is restarted automatically. PU(H)Y-200·250YMF-B I Cooling mode 1 TH1>120°C F<60Hz, TH1-Tc>60deg I Heating mode 1 TH1>100°C, F<60Hz, TH1-Tc>55deg. TH5>15˚C 2 F<60Hz, TH1>120˚C, TH1-Tc>70deg. TH5 15˚C PUHY-P200·250YMF-B 1 TH10>85°C F<60Hz and continuously for 60 minutes. 2 TH10>95°C F<60Hz and continuously for 15 minutes. 3 TH10>100°C F 60Hz and continuously for 60 minutes. 4 TH1
- 1505Error codeSuction pressure abnormality: <PUHY-200·250YMF-C> 1. Judging the state when the suction pressure reaches near 0kg/ cm2G (0MPa) during compressor operation by the low pressure saturation temperature, error stop will be commenced displaying “1505”. 2. The outdoor unit once stops entering into the 3-minutes restart mode if the state of 1 continues for 3 minutes, and restarts after 3 minutes. 3. After restarting, if the same state as 1 continues within 30 minutes from the stopping of 2, error stop will be commenced displaying “1
- 1521Error codeError codes related to refrigerant leak are displayed with higher priority than other error codes. Take actions according to [117-3 Flowchart for Refrigerant Leak]. Refrigerant leak error (self detection of the unit): If the indoor unit with the built-in refrigerant sensor detects a refrigerant leak.
- 1522Error codeError codes related to refrigerant leak are displayed with higher priority than other error codes. Take actions according to [117-3 Flowchart for Refrigerant Leak]. Refrigerant leak error (other units): 1) An error detected by indoor units that belong to the same shut off space as the unit that detected a refrigerant leak 2) A maintenance error code detected by indoor units that belong to a different shut off space from that for the unit that detected a refrigerant leak and are connected to the same outdoor unit
- 1524Error codeError codes related to refrigerant leak are displayed with higher priority than other error codes. Take actions according to [117-3 Flowchart for Refrigerant Leak]. Refrigerant leak error (self detection of the sensor kit): If the BC controller with the sensor kit detects a refrigerant leak.
- 1550Error codeLiquid back error (detected by current sensor) Instantaneous overcurrent (detail code 001) Overcurrent (effective value) shut off error (detail code 002) ACCT overcurrent error (detail code 003): If the current sensor detects an overcurrent that is equal to or greater than the specified value after the start of operation. | fault and tion faults and winding resistance winding error faults. 2) A compressor winding resistance fault occurs.
- 1625Error code
- 1626Error codeSensor kit maintenance: Time to replace the sensor kit
- 2500Error codeDrain sensor submergence (Models with a drain sensor): 1) If an immersion of the drain sensor in the water is detected while the unit is in any mode other than the Cool/Dry mode and when the drain pump goes from OFF to ON, this condition is considered preliminary water leakage. While this error is being detected, humidifier output cannot be turned on. 2) If the immersion of the sensor in the water is detected four consecutive times at an hour interval, this is considered water leakage, and "2500" appears on the monitor. 3) Detection of water leakage | Drain sensor submergence (Models with a float switch): 1) If an immersion of the float switch in the water is detected while the unit is in any mode other than the Cool/Dry mode and when the drain pump goes from OFF to ON, this condition is considered preliminary water leakage. While this error is being detected, humidifier output cannot be turned on. 2) If the drain pump turns on within one hour after preliminary water leakage is detected and the above-mentioned condition is detected two consecutive times, water leakage error water leakage is detec
- 2502Error codeDrain pump failure (The error code blinks on the indoor unit in trouble.) Drain pump failure (The error code blinks on all the indoor units in the system with one outdoor unit.): When the drain sensor detects water or its tip becomes immersed in water during drain pump operation. When the drain sensor detects water or its tip becomes immersed in water during drain pump operation on stopping indoor units. | Drain pump failure (The error code blinks on the indoor unit in trouble.) Drain pump failure (The error code blinks on all the indoor units in the system): When the drain sensor detects water or its tip becomes immersed in water during drain pump operation. When the drain sensor detects water or its tip becomes immersed in water during drain pump operation on stopping indoor units.
- 2503Error codeDrain sensor (Thd) fault: If the open or short circuit of the thermistor has been detected for 30 seconds, this condition is considered to be a preliminary error, and the unit goes into the 3-minute restart delay mode. If another episode of the above condition is detected during the preliminary error, this is considered a drain sensor error.(If the short or open circuit of the thermistor is no longer detected, normal operation will be restored in 3 minutes.) This error is detected when one of the following conditions
- 2600Error codeWater leakage from humidifier: 1) If the float switch for detecting water leakage is submerged in the water in the humidifier's drain pan and when the drain pump goes from OFF to ON, this condition is considered a preliminary water leakage. While the preliminary water leakage error is being detected, the humidifier cannot output the on signal. The discharge valve will be closed. 2) If the drain pump turns on within one hour after preliminary water leakage is detected and the above-mentioned condition is detected two consecuti
- 2601Error codeWater supply cutoff 2. Cause, check method and remedy
- 2602Error codeFunction setting error 2. Cause, check method and remedy
- 3121Error codeOut-of-range outside air temperature: When the thermistor temperature of -28°C[-18°F] or below has continuously been detected for 3 minutes during heating operation (during compressor operation), the unit makes an error stop and "3121" appears on the display. (Use the OC thermistor temperature to determine when two outdoor units are in operation.) The compressor restarts when the thermistor temperature is -26°C[-15°F] or above (both OC and OS) during error stop.
- 3511Error codeRefrigerant overcooling: A*1 1) If the condition "THHS ≤ °C remains true for continuous 6 minutes and 30 seconds" is met (for the first time) during operation, the outdoor unit will stop, go into the three-minute restart delay mode, and then automatically resume operation after three minutes have passed. A*1 2) If the condition "THHS ≤ °C remains true for continuous 6 minutes and 30 seconds" is met again (for the second time) within 30 minutes of the first stoppage of the outdoor unit explained above, the outdoor unit w
- 3512Error codeCooling fan locking: The motor on the cooling fan locks during operation.
- 4102Error codeThe open phase of the power supply may not always be detected if a power voltage from another circuit is applied. The L3 phase current is outside of the specified range. The open phase of the power supply may not always be detected if a power voltage from another circuit is applied.
- 4103Error code
- 4106Error code<Transmission power supply fault Error detail code FF (Outdoor unit)>: Transmission power output failure
- 4108Error codeOvercurrent protection: 1.First detection If 51C2 is started during the operation of No.2 compressor, the outdoor unit stops once, turns to anti-restart mode for 3 minutes, and restarts after 3 minutes. above, the unit makes an error stop and the error code "4108" will appear. 3.There will be a minute grace period of an error stop when No.2 compressor restarts after the outdoor u | Overcurrent protection: 1. First detection If 51C2 is started during the operation of No.2 compressor, the outdoor unit stops once, turns to antirestart mode for 3 minutes, and restarts after 3 minutes. Second detection If 51C2 is started again within a minute after restarting in compliance with 1. above, the unit makes an error stop and the error code "4108" will appear. 3. There will be a minute grace period of an error stop when No.2 compressor restarts after the outdoor
- 4109Error codeIndoor unit fan operation error: 1) During operation, it has been continuously detected for 100 seconds that the auxiliary relay (X13) for fan fault detection is not excited.
- 4114Error codeIndoor unit fan motor error: When the fan motor output from the indoor unit circuit board is ON and when the rotation speed input from the fan motor cannot be detected for 30 seconds or more
- 4115Error codePower supply signal sync error: The frequency cannot be determined when the power is switched on.
- 4116Error codeRPM error [PKFY-AM Motor abnormality: only] 1.If the fan rotation speed is detected to 180rpm or lower, or 2000rpm or more during the fan operation in the indoor unit, the unit stops once, turns to anti-restart mode for 3 minutes, and makes fan to stop for 30 seconds. 2.If the fan rotation speed is detected to 180rpm or lower, or 2000rpm or more again when the restart operation after 30 seconds since the fan stops, the unit makes an error stop (fan also stops), and the error code "4116" will appear. [LOSSNAY only] 1.The motor keep r
- 4121Error codeFunction setting error 2.
- 4124Error codeElectric system not operate due to damper abnormality: When the damper is not located at the designated position.
- 4136Error codeSafety shut off valve circuit error: If the BC controller detects an abnormal control signal from the safety shut off valve.
- 4200Error codeVDC sensor/circuit abnormality: 1 If VDC 304 V is detected just before the inverter starts. 2 If VDC 750 V is detected just before starting of and during operation of the inverter.
- 4210Error codeBreaking of overcurrent: 1 If IDC 103 A peak is detected during inverter operation. 2 If the voltage of the INV board’s sensor circuit input is what it should not normally be.
- 4220Error codeAbnormal bus voltage drop (Detail code 108) (YNU): If Vdc 289V or less is detected during Inverter operation. (S/W detection) | Abnormal bus voltage drop (Detail code 108) (TNU): If Vdc 160V or less is detected during Inverter operation. (S/W detection) | Abnormal bus voltage rise (Detail code 109): If Vdc 830V is detected during inverter operation. (YNU) If Vdc 400V is detected during inverter operation. (TNU) | Logic error (Detail code 111, 112): Hardware error If only the hardware error logic circuit operates, and no identifiable error is detected. | Control power supply error (Detail code 129)(outdoor unit): INV35Y, INV42Y, and INV38 Detection of insufficient drive voltage for relays on INV board INV37YC and INV39C Detection of insufficient drive voltage for relays on INV board or for IGBT | Low bus voltage at startup (Detail code 131) (YNU) Troubleshooting: When Vdc 289 V is detected just before the inverter operation. (YNU) | Low bus voltage at startup (Detail code 131) (TNU): When Vdc 160 V is detected just before the inverter operation. (TNU)
- 4225Error codeAbnormal bus voltage drop (Detail code 108): If Vdc 160V or less is detected during Inverter operation. (S/W detection) | Abnormal bus voltage drop (Detail code 108): If Vdc 289V or less is detected during Inverter operation. (S/W detection) | Abnormal bus voltage rise (Detail code 109): If Vdc 400V is detected during inverter operation. | Abnormal bus voltage rise (Detail code 109): If Vdc 830V is detected during inverter operation. | VDC error (Detail code 110): Bus voltage abnormality If Vdc 400V or Vdc 160V is detected. (H/W detection) | Logic error (Detail code 111): H/W error If only the H/W error logic circuit operates, and no identifiable error is detected. | Low bus voltage at startup (Detail code 131): When Vdc 160 V is detected just before the inverter operation.
- 4226Error codeAbnormal bus voltage drop (Detail code 108) (YNU): If Vdc 289V or less is detected during Inverter operation. (S/W detection) | Abnormal bus voltage drop (Detail code 108) (TNU): If Vdc 160V or less is detected during Inverter operation. (S/W detection) | Abnormal bus voltage rise (Detail code 109): If Vdc 830V is detected during inverter operation. (YNU) If Vdc 400V is detected during inverter operation. (TNU) | Logic error (Detail code 111, 112): Hardware error If only the hardware error logic circuit operates, and no identifiable error is detected. | Low bus voltage at startup (Detail code 131) (YNU) Troubleshooting: When Vdc 289 V is detected just before the inverter operation. (YNU) | Low bus voltage at startup (Detail code 131) (TNU): When Vdc 160 V is detected just before the inverter operation. (TNU)
- 4230Error codeHeatsink overheat protection (Detail code 125): When the heat sink temperature (THHS) remains at or above TOH is detected. models TOH INV35Y, 36Y 100°C INV37YC 94°C | DCL temperature fault (Detail code 126)(outdoor unit): When DCL temperature that equals or exceeds 150˚C is detected (applicable to INV37YC only)
- 4235Error codeIn the case of 4235 When the heat sink temperature (THHS1) 85°C [185°F] or higher is detected. In the case of 4235 When the heat sink temperature (THHS5) 85°C [185°F] or higher is detected.
- 4236Error codeHeatsink overheat protection (Detail code 125): When the heat sink temperature (THHS) remains at or above TOH is detected. models TOH INV board 100°C [212°F] Fan board 100°C [212°F]