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Midea CS11M-09HRFN1-MX0W, Руководство по обслуживанию

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43 

9.3.8 Over voltage or too low voltage protection diagnosis and solution(P1)

 

Error Code 

P1

 

Malfunction decision 

conditions 

An abnormal voltage rise or drop is detected by checking the 

specified voltage detection circuit. 

Supposed causes 

● 

Power supply problems. 

● 

System leakage or block 

● 

PCB faulty 

Trouble shooting: 

Check  the power supply 

Check the connections and 
wires 

Stop the unit

No

Yes

No

Correct the connections or 

replace the wires.

Yes

Replace the reactor

Yes

No

Replace the IPM board

 Check the voltage between P 

and N 

 Check the reactor 

Yes

No

Replace outdoor main PCB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remark:

   

Measure the DC voltage 

between P and N port. The 

normal value should be 

around 310V. 

P 

N 

Содержание CS11M-09HRFN1-MX0W

Страница 1: ...11M 09HRFN1 MZ65W A MS11M 09HRFN1 MZA5W A MS11M 12HRFN1 MZ10W MS11M 12HRFN1 MZ50W A MS11M 17HRFN1 MW0W Oasis MONO Split Hyper DC Inverter Air Conditioner SERVICE MANUAL Mono 3D Table of Contents 1 Pre...

Страница 2: ...evation 11 6 4 Installation for the first time 12 6 5 Adding the refrigerant after running the system for many years 12 6 6 Re installation while the indoor unit need to be repaired 13 6 7 Re installa...

Страница 3: ...ul of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an authorized service center Do not install the product on a defective installation stan...

Страница 4: ...away properly A bad connection may cause water leakage Keep level even when installing the product It can avoid vibration of water leakage Do not install the product where the noise or hot air from th...

Страница 5: ...of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire...

Страница 6: ...9HFN1 MZ65W 9k MS11M 09HRFN1 MZA5W A MOCA30 09HFN1 MZ65W 12k MS11M 12HRFN1 BV0W MOB30 12HFN1 BV0W 12k CS11M 12HRFN1 MU5W MOB30 12HFN1 MV0W 12k MS11M 12HRFN1 MZ10W MOCA30 12HFN1 MZ10W 12k MS11M 12HRFN1...

Страница 7: ...5 2 2 Part names of Indoor Outdoor units...

Страница 8: ...HRFN1 BV0W CS11M 09HRFN1 MX0W A MS11M 09HRFN1 MZ65W A MS11M 12HRFN1 MZ10W CS11M 12HRFN1 MU5W MS11M 09HRFN1 MZA5W A 990mm 39 0in 218mm 8 6in 315mm 12 4in MS11M 12HRFN1 MZ50W A MS11M 17HRFN1 MW0W CS11M...

Страница 9: ...7 For CS11M 09HRFN1 MX0W A MS11M 09HRFN1 MZ65W A CS11M 12HRFN1 MU5W MS11M 12HRFN1 MZ10W For MS11M 09HRFN1 MZA5W A MS11M 12HRFN1 MZ50W A MS11M 17HRFN1 MW0W CS11M 18HRFN1 MT0W For CS11M 23HRFN1 MT0W...

Страница 10: ...8 For MS11M 09HRFN1 BW0W MS11M 12HRFN1 BV0W For MS11M 30HRFN1 MR0W MS11M 36HRFN1 MN10W...

Страница 11: ...MOB30 12HFN1 MV0W MOCA30 09HFN1 MZ65W 33 27 845 14 29 363 27 64 702 35 98 914 21 26 540 13 78 350 MOCA30 12HFN1 MZ10W MCA30 17HFN1 MW0W MOCA30 18HFN1 MT0W MOD30 24HFN1 MT0W 37 24 946 16 14 410 31 89...

Страница 12: ...V A L V E 3 W A Y V A L V E 4 W A Y V A L V E C O O L IN G H E A T IN G T 2 E v a p o r a to r te m p s e n s o r T 1 R o o m te m p s e n s o r T 3 C o n d e n s e r te m p s e n s o r A c c u m u l...

Страница 13: ...A30 09HFN1 MZ65W 1 2in 12 7mm 1 4in 6 35mm MS11M 09HRFN1 MZ65W A MOCA30 09HFN1 MZ65W MS11M 12HRFN1 MZ10W MOCA30 12HFN1 MZ10W MS11M 12HRFN1 BV0W MOB30 12HFN1 BV0W MS11M 12HRFN1 MZ50W A MOCA30 12HFN1 MZ...

Страница 14: ...Operate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check whether the compound meter indicates 0 1Mpa 14 5Psi If the meter does not indicate 0 1Mpa 14 5Psi after pumping 30 minute...

Страница 15: ...as service port 3 Air purging of the charge hose Open the handle Lo valve of the manifold valve slightly to purge air from the charge hose for 5 seconds and then close it quickly 4 Set the 2 way valve...

Страница 16: ...m the vacuum pump 2 Refrigerant charging Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the v...

Страница 17: ...FN1 MX0W A CS11M 12HRFN1 MU5W CS11M 18HRFN1 MT0W CS11M 23HRFN1 MT0W MS11M 09HRFN1 MZA5W A MS11M 12HRFN1 MZ50W A MS11M 17HRFN1 MW0W 30 C 50 C 22 F 122 F 30 C 30 C 22 F 86 F 0 C 50 C 32 F 122 F 32 CAUTI...

Страница 18: ...amp illuminates when Clean Air feature is activated DEFROST indication lamp For cooling heating models only Lights up when the air conditioner starts defrosting automatically or when the warm air cont...

Страница 19: ...y and the indoor fan will open 10s later If the unit runs in heating mode the indoor fan will be also controlled by anti cold wind function 8 3 7 Compressor preheating functions Preheating permitting...

Страница 20: ...Indoor fan running rules In cooling mode indoor fan runs all the time and the speed can be selected as high medium low and auto When the setting temp is reached if the compressor stop running indoor...

Страница 21: ...ed or setting speed The anti cold air function is valid The indoor fan is controlled as below Setting fan speed Actual fan speed H H H H H G M M M M M M Z L L L L L L D H H H G M M M Z L L L D T1 Td L...

Страница 22: ...f the machine 8 4 6 2 In forced operation mode all general protections and remote control are available 8 4 6 3 Operation rules Forced cooling mode The compressor runs at F2 frequency and indoor fan r...

Страница 23: ...iry information Displaying code Meaning T1 T1 T1 temp T2 T2 T2 temp T3 T3 T3 temp T4 T4 T4 temp T2B Tb T2B temp TP TP TP temp TH TH TH temp Targeted Frequency FT Targeted Frequency Actual Frequency Fr...

Страница 24: ...1 139 E0 E1 E9 140 141 149 F0 F1 F9 150 151 159 Indoor fan speed Outdoor fan speed 0 OFF 1 2 3 4 Low speed Medium speed High speed Turbo For some big capacity motors 14 FF Actual fan speed Display val...

Страница 25: ...electricity power in capacitor Electrolytic Capacitors HIGH VOLTAGE CAUTION For other models please connect discharge resistance approx 100 40W or soldering iron plug between terminals of the electrol...

Страница 26: ...6 times O F5 Outdoor fan speed has been out of control 1 times P0 IPM malfunction or IGBT over strong current protection 2 times P1 Over voltage or over low voltage protection 3 times P2 High tempera...

Страница 27: ...I C 10 C 79 C 80 D 7 C 6 R 1 48 R 63 C 5 06 R 5 07 R 5 08 E 11 R 1 06 C 73 I C 21 P C8 17 I C 31 P C8 17 R 1 75 R 1 78 C 4 09 I C4 02 C 4 03 I C 11 E 4 02 D 4 01 C 4 01 R 4 03 C 4 11 C 40 C 50 D 4 03...

Страница 28: ...0 3 C 4 1 2 C 4 1 0 C 4 0 9 C 4 0 8 C 4 0 5 C 4 0 4 C 4 0 3 C 4 0 2 C 4 0 1 C 3 2 2 C 3 1 2 C 3 0 5 C 3 0 3 C 3 0 2 C 2 7 4 C 2 7 3 C 2 7 2 C 2 7 1 C 1 3 3 C 1 3 2 C 1 3 1 C 1 3 0 C 1 2 9 C 1 2 8 C 1...

Страница 29: ...l o w p r e s s u r e s e n s o r c o n n e c t t o t r m p s e n s o r F u s e 5 A 2 5 0 V c o n n e c t t o e a r t h C N 2 3 r e s e r v e d i g i t a l d i s p l a y b u t t o n t e s t r e p o r...

Страница 30: ...o n n e c t t o t h e t e r m i n a l 2 0 8 2 3 0 V A C C N 5 4 C N 5 1 C N 5 2 P F C i n d u c t a n c e t e r m i n a l C N 5 8 E A T T H 2 1 0 3 0 0 V D C R u n n i n g C A P A C I T O R V o l t a...

Страница 31: ...s Installation mistake PCB faulty Trouble shooting Yes Replace the indoor outdoor main PCB Power off then restart the unit 2 minutes later EEPROM a read only memory whose contents can be erased and re...

Страница 32: ...s later Is the error extinguished No Replace the outdoor main PCB Power on Is the error extinguished Replace the outdoor main PCB Power on Is the error extinguished Check the outdoor wiring connection...

Страница 33: ...voltage will move alternately between 25V to 25V If the outdoor unit has malfunction the voltage will move alternately with positive value While if the indoor unit has malfunction the voltage will be...

Страница 34: ...o crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Supposed causes Connection mistake PCB faulty Trouble shooting Check if the connections and power supply...

Страница 35: ...s Wiring mistake Fan ass y faulty Fan motor faulty PCB faulty Trouble shooting Power off then restart the unit 2 minutes later Shut off the power supply Rotate the fan by hand The unit operates normal...

Страница 36: ...ck GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V 2 Outdoor DC Fan Motor control chip is in outdoor PCB Power on and check if the fan can run normally if the fan can run normally t...

Страница 37: ...ampling voltage is lower than 0 06V or higher than 4 94V the LED will display the failure Supposed causes Wiring mistake Sensor faulty PCB faulty Trouble shooting Check the connection between temperat...

Страница 38: ...ulty Indoor PCB faulty System problems such as leakage or blocking Trouble shooting Is there cool air blowing out from indoor air outlet Yes Yes Check if T2 sensor is well fixed Correct the installati...

Страница 39: ...Compressor malfunction Trouble shooting Check the power supply Is it normal Check the connections and wires Is it well connection Stop the unit Check the power supply No Yes No Correct the connection...

Страница 40: ...n main PCB and compressor If the wires and connectors are broken Correct the connection or replace the wires and connectors Yes No IPM continuity check Check if the IPM terminal resistance values are...

Страница 41: ...39 For example P U P V Note The photos below are only for reference it s may be not same totally with the ones on your side...

Страница 42: ...40 P W N U...

Страница 43: ...41 N V N W...

Страница 44: ...ge rectifier No Check whether bridge rectifier is normal Check whether bridge rectifier is normal Check the wiring of reactor or inductance Check the wiring of reactor or inductance Reconnect the wiri...

Страница 45: ...ses Power supply problems System leakage or block PCB faulty Trouble shooting Check the power supply Check the connections and wires Stop the unit No Yes No Correct the connections or replace the wire...

Страница 46: ...splay the failure Supposed causes PCB faulty Trouble shooting Yes Tighten the screws and apply silicon grease Tighten the screws and apply silicon grease Replace the outdoor control PCB Replace the ou...

Страница 47: ...or replace the wires and connectors No Check if the IPM installed correctly Correct the installation tighten the screws and apply silicon grease No IPM continuity check Check if the IPM terminal resis...

Страница 48: ...ytic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and N Digital tester Normal resistance value Digital tester Normal resis...

Страница 49: ...ge rectifier No Check whether bridge rectifier is normal Check whether bridge rectifier is normal Check the wiring of reactor or inductance Check the wiring of reactor or inductance Reconnect the wiri...

Страница 50: ...outdoor main board Replace outdoor main board No Replace low pressure protector Replace low pressure protector No Whether the low pressure protector is broken Whether the low pressure protector is bro...

Страница 51: ...from PCB measure the resistance value with a tester Temperature sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge t...

Страница 52: ...29078 117 243 0 38991 2 28 39 8239 38 100 5 62961 78 172 1 25423 118 244 0 37956 1 30 37 1988 39 102 5 39689 79 174 1 2133 119 246 0 36954 0 32 35 2024 40 104 5 17519 80 176 1 17393 120 248 0 35982 1...

Страница 53: ...2 422 4 25 222 8 36 97 34 32 76 169 7 82 116 241 2 357 3 27 211 4 37 99 32 94 77 171 7 566 117 243 2 294 2 28 200 7 38 100 31 62 78 172 7 321 118 244 2 233 1 30 190 5 39 102 30 36 79 174 7 086 119 246...

Страница 54: ...57 4 39 2 33 91 4 64 147 2 95 203 126 258 8 4 5 40 1 34 93 2 65 149 96 204 8 127 260 6 5 41 35 95 66 150 8 97 206 6 128 262 4 6 42 8 36 96 8 67 152 6 98 208 4 129 264 2 7 44 6 37 98 6 68 154 4 99 210...

Страница 55: ...ltage of P and N 208 240V 1 phase 3 phase 380 420V 3 phase In standby around 310VDC around 530VDC In operation With passive PFC module With partial active PFC module With fully active PFC module 200VD...

Страница 56: ...tance value of each winding by using the tester Position Resistance Value ASM98D32UFZ ATM115D43UFZ2 ATM150D23UFZ ATF235D22UMT ATF250D22UMT Blue Red 2 25 20 C 68 F 1 87 20 C 68 F 1 72 20 C 68 F 0 75 20...

Страница 57: ...tance value Red Black Several M Red Black Several M P N U N U V V W W Red 4 Indoor AC Fan Motor Measure the resistance value of each winding by using the tester Position Resistance Value RPG13B RPG50B...

Страница 58: ...7 9 1 10 7 BAR 80 67 9 3 8 9 9 1 9 6 11 2 F C ODT IDT 75 23 89 85 29 44 95 35 105 40 56 115 46 11 PSI 70 59 119 113 117 125 147 PSI 75 63 124 120 126 132 155 PSI 80 67 135 129 132 140 162 F C ODT IDT...

Страница 59: ...8 31 5 27 8 26 3 24 9 F C ODT IDT 57 53 13 89 11 67 47 43 8 33 6 11 37 33 2 78 0 56 27 23 2 78 5 17 13 8 33 10 56 PSI 55 439 413 367 330 302 PSI 65 471 435 386 368 339 PSI 75 489 457 403 381 362 F C O...

Страница 60: ...panel 1 Pull the below side of the panel and release the clips Then remove the front panel 2 Remove the filter and horizontal louver 3 Remove the four fixing screws 4 Remove the cover one screw 5 Lift...

Страница 61: ...d the left side and open the cover 3 Remove the fixing screw and open the electrical box cover 4 Pull out the connectors of the swing motor and fan motor 5 Remove the fixing screw and then remove the...

Страница 62: ...ng procedure 1 and procedure 2 remove the pipe holder at the rear side of the unit 2 Remove the two screws on the evaporator at the base bearing side 3 Remove two screws on the evaporator at the fixed...

Страница 63: ...the fan and motor 1 After remove the evaporator ass y following procedure 1 procedure 2 and procedure 3 remove the three screws fixing the cover 2 Remove the screw fixing the motor and then pull out...

Страница 64: ...late 1 Stop operation of the air conditioner and turn OFF the power breaker 3 Remove the big handle first and then remove the top panel 3 screws 3 Remove the screws of front panel 6 screws 4 Remove th...

Страница 65: ...ter remove the panel plate following procedure 1 remove the hex nut fixing the fan and then remove the fan 2 Unfix the hooks and then open the electronic control box cover 1 2 compressor T3 T4 T5 sens...

Страница 66: ...Remove the four fixing screws of the fan motor Then remove the fan motor 3 Electrical parts How to remove the electrical parts 1 After finish work of item 1 and item 2 remove the connectors for the co...

Страница 67: ...enser coil temp sensor T3 outdoor ambient temp sensor T4 and discharge temp sensor TP 4 disconnect the electronic expansion valve wire 5 Remove the grounding screw 6 Remove the Wires 1 2 3 Then remove...

Страница 68: ...ipe 1 Then the four way valve ass y can be removed The picture of four way valve may be different from the one on your side 3 4 5 Compressor How to remove the compressor 1 After perform work of item1...

Страница 69: ...anel plate 1 Stop operation of the air conditioner and turn OFF the power breaker 2 Remove the top panel 3 screws 3 Remove the screws of front panel 9 screws 4 Remove the screws of the right side pane...

Страница 70: ...remove the hex nut fixing the fan and then remove the fan 2 After remove the top cover Unfix the hooks and then open the electronic control box cover 1 2 T3 T4 T5 sensor wire Motor wire Electronic exp...

Страница 71: ...electronic control board 4 Remove the four fixing screws of the fan motor Then remove the fan motor 3 Electrical parts How to remove the electrical parts 1 After finish work of item 1 and item 2 remov...

Страница 72: ...blue wires connected with the four way valve 3 Pull out connectors of the condenser coil temp sensor T3 outdoor ambient temp sensor T4 and discharge temp sensor TP 4 disconnect the electronic expansio...

Страница 73: ...71 5 remove the electric heaters 6 Remove the grounding screw 7 Remove the Wires 1 2 3 or L1 L2 S Then remove the electronic control box 5 7...

Страница 74: ...pipe 2 Then the four way valve ass y can be removed The picture of four way valve may be different from the one on your side 3 5 Compressor How to remove the compressor 1 After perform work of item1 3...

Страница 75: ...ation of the air conditioner and turn OFF the power breaker 2 Remove the big handle first then remove the top cover 7 screws 3 Remove the screws of front panel 11 screws 4 Remove the screws of the rig...

Страница 76: ...ass y 1 After remove the panel plate following procedure 1 2 Remove the nut fixing the fan and remove the fan 3 Unfix the hooks and remove the screws then open the electronic control box cover 2 3 fa...

Страница 77: ...nector for fan motor from the electronic control board 5 Remove the four fixing screws of the fan motor then remove the motor 5 4 T3 T4 T5 sensor Pressure switch Compressor wire Electronic expansion 4...

Страница 78: ...r finish work of item 1 and item 2 remove the connector for the compressor 2 Pull out the two blue wires connected with the four way valve 3 Pull out connectors of the condenser coil temp sensor T3 ou...

Страница 79: ...ct the pressure switch connector 5 Disconnect the electronic expansion valve wire from the control board 6 Remove the ground wires 7 Remove the wires 1 2 3 or L1 L2 S Then remove the electronic contro...

Страница 80: ...pipe 5 Then the four way valve ass y can be removed The picture of four way valve may be different from the one on your side 5 Compressor How to remove the compressor 1 After perform work of item1 3...

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