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9.2.10 Inverter compressor drive error diagnosis and solution(P4)

Error Code

Malfunction decision

conditions

An abnormal inverter compressor drive is detected by a special

detection circuit, including communication signal detection,

voltage detection, compressor rotation speed signal detection

and so on.

Supposed causes

●

Wiring mistake

●

IPM malfunction

●

Outdoor fan ass’y faulty

●

Compressor malfunction

●

Outdoor PCB faulty

Trouble shooting:

Check the wiring between main PCB
and compressor

Correct the connection or replace

the wires and connectors.

Yes

Check the IPM

Yes

Replace the IPM board or replace

the main PCB

Check the outdoor fan and the

outdoor unit ventilation

Please refer to the solution of

【

Fan

Speed Has Been Out Of Control

】

malfunction

Yes

Check the compressor resistance

values

Replace the compressor.

Yes

Replace the outdoor main PCB

Содержание P7MVI-09WiFi

Страница 1: ...SERVICE MANUAL ENGLISH WALL MOUNTED UNIT AIR CONDITIONING SYSTEMS MODELS P7MVI 09WIFI P7MVO 09 P7MVI 12WIFI P7MVO 12 P7MVI 18WIFI P7MVO 18 P7MVI 24WIFI P7MVO 24...

Страница 2: ...21 5 5 Adding the refrigerant after running the system for many years 22 5 6 Re installation while the indoor unit need to be repaired 23 5 7 Re installation while the outdoor unit need to be repaire...

Страница 3: ...y be especially careful 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 defect...

Страница 4: ...the drain hose to ensure that water is drained 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...

Страница 5: ...remote control with new ones 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 d...

Страница 6: ...6 2 Function Model Names of Indoor Outdoor Units 3D inverter Capacity Indoor units Outdoor units 9k P7MVI 09WIFI P7MVO 09 12k P7MVI 12WIFI P7MVO 12 18k P7MVI 18WIFI P7MVO 18 24k P7MVI 24WIFI P7MVO 24...

Страница 7: ...7 3 Dimension 3 1 Indoor Unit Model W D H P7MVI 09WIFI 717 193 302 P7MVI 09WIFI 805 193 302 P7MVI 09WIFI 964 222 325 P7MVI 09WIFI 1106 232 342...

Страница 8: ...8 For P7MVI 09WIFI...

Страница 9: ...9 For P7MVI 12WIFI For P7MVI 18WIFI...

Страница 10: ...10 For P7MVI 24WIFI...

Страница 11: ...11 3 2 Outdoor Unit...

Страница 12: ...12 For P7MVO 09 487 W1 70 W2 298 555 300 D H 12 60 93 H1 H2 D1 770 W 779 W3 322 D2 25 B1 90 B2 61 5 A2 12 A1 R 6 286 D3...

Страница 13: ...13 For P7MVO 12 P7MVO 18 800 W 514 W1 554 60 85 5 340 12 0 311 815 W3 365 333 D 70 W2 H H1 H2 D1 D2 D3 62 B1 106 B2 20 A1 R20 R6 61 6 A2...

Страница 14: ...14 For P7MVO 24...

Страница 15: ...HANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sensor ACCUMULATOR INDOOR OUTDOOR CHECK VALVE Heating Mod...

Страница 16: ...16 P7MVO 09 P7MVO 12 16022000020169...

Страница 17: ...17 P7MVO 18 P7MVO 24...

Страница 18: ...18...

Страница 19: ...4 6500 663kgf cm 6700 683kgf cm 5 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross section...

Страница 20: ...frigerant g m Gas Liquid P7MVI 09WIFI P7MVO 09 3 8 9 52 1 4 6 35 5 10 25 15 P7MVI 12WIFI P7MVO 12 3 8 9 52 1 4 6 35 5 10 25 15 P7MVI 18WIFI P7MVO 18 1 2 12 7 1 4 6 35 5 20 30 15 P7MVI 24WIFI P7MVO 24...

Страница 21: ...he charge hose of handle hi connection to the vacuum pump 4 Fully open the handle Lo of the manifold valve 5 Operate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check whether the...

Страница 22: ...e valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure the liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylin...

Страница 23: ...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 to the close pos...

Страница 24: ...arge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrig...

Страница 25: ...25 cap to a torque of 18N m Be sure to check for gas leakage...

Страница 26: ...little to loosen the fastener Step2 Pull the filter gently along the horizontal direction Step3 Pull out the filter 6 2 How to Remove the horizontal louver Step1 Open the horizontal louver push the lo...

Страница 27: ...move the two screws Step2 Open the panel assembly move the slider to fix the panel Step3 Press the locker A and B to lose the indoor from the installation plate Step4 Unfold the supporter of Installat...

Страница 28: ...panel assembly Step1 Open the screw caps A and B remove the two screws Step2 Open the panel assembly loosen the display board connector Step3 Pull the panel assembly along the direction indicated in...

Страница 29: ...e the panel to remove the PCB in order to show clearly inside these pictures are without panel 6 6 How to Remove the Electrical control box Step1 Remove screw A B C pull out the coil temp sensor D fro...

Страница 30: ...sample you need to remove screw X to lift the E box a little Then you can remove the Screw E This problem will be solved before mass production Step3 Open the E box to lose the fan motor and louver m...

Страница 31: ...24K indoor unit is relatively large and heavy it must have two persons to implement the following steps Step1 Remove the Electric control box Step2 Remove the Chassis assembly Step3 Unfold the Pipe c...

Страница 32: ...operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner may attract...

Страница 33: ...urbo or Silence feature is activated Dispalys for three seconds when Timer OFF is set Dispalys for three seconds when Fresh Swing Turbo or Silence feature is cancelled Dispalys under deforsting operat...

Страница 34: ...op working 8 3 6 Indoor fan delayed open function When the unit starts up the louver will be active immediately and the indoor fan will open 7s later If the unit runs in heating mode the indoor fan wi...

Страница 35: ...n setting value the current protection function will be activated and the compressor will stop 8 4 2 2 Outdoor fan running rules The outdoor unit will be run at different fan speed according to T4 For...

Страница 36: ...nits the fan speeds are different T4 E D C B A A 8 4 3 3 Indoor fan running rules When the compressor is on the indoor fan can be set to high med low auto mute When indoor unit coil temp is low the an...

Страница 37: ...stopping for certain time and then choose mode according to T1 Ts If the setting temperature is modified the machine will choose running function again 8 4 5 Drying mode Indoor fan speed is fixed at...

Страница 38: ...mode for a while then low heat operation and finally runs in fan only again This function can keep the inside of indoor unit dry and prevent breeding of mold 8 4 12 Follow me optional 1 If the indoor...

Страница 39: ...y control optional For AE series On off port XYE port WIFI wired controller 5 cored can be chosen at the same time Non polar wired controller 4 cored wired controller and central controller are mutual...

Страница 40: ...the code name in 2 seconds the details are as follows Enquiry 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 Ta...

Страница 41: ...111 119 c0 c1 c9 120 121 129 d0 d1 d9 130 131 139 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 capaci...

Страница 42: ...e on off control status OFF OFF Disconnected send CP closed cancel CP ON OFF Closed send CP disconnected cancel CP 8 5 3 ON OFF control 8 5 3 1 It needs 3 seconds to determine on off status ON OFF com...

Страница 43: ...e connect to Max 16 indoor units All the indoor units must be the same series and in the same network The address of Multi function board must be set differently The connection method must be Bus type...

Страница 44: ...44 8 5 7 2 Connected to Non poplar wired controller Note It must use shield cables to connect with Non poplar wired controller The length should not exceed 50m...

Страница 45: ...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 46: ...0 Overload current protection 2 times O F1 Outdoor ambient temperature sensor T4 open circuit or short circuit 3 times O F2 Condenser coil temperature sensor T3 open circuit or short circuit 4 times O...

Страница 47: ...nstallation 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 repro...

Страница 48: ...Yes Power off then restart the unit 2 minutes later Power off then restart the unit 2 minutes later No Replace the outdoor main PCB Power on Is the error extinguished Replace the outdoor main PCB Pow...

Страница 49: ...rk Use a multi meter to test the resistance of the reactor which does not connect with capacitor The normal value should be around zero ohm Otherwise the reactor must have malfunction and need to be r...

Страница 50: ...pposed causes 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 ope...

Страница 51: ...ontrol chip is in outdoor PCB Power on and check if the fan can run normally if the fan can run normally the PCB must has problems and need to be replaced If the fan can t run normally measure the res...

Страница 52: ...er than 50Hz does not keep continuous 3 minutes and this situation happens 3 times the display area will show EC and AC will turn off Supposed causes T2 sensor faulty Indoor PCB faulty System problems...

Страница 53: ...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 54: ...Power supply problems System blockage PCB faulty Wiring mistake Compressor malfunction Check the power supply Check the connections and wires Stop the unit No Yes No Correct the connections or replace...

Страница 55: ...n Outdoor fan ass y faulty Compressor malfunction Outdoor PCB faulty Trouble shooting Check the wiring between main PCB and compressor Correct the connection or replace the wires and connectors Yes No...

Страница 56: ...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 57: ...m 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 N...

Страница 58: ...ouble shooting Check the air flow system of indoor and outdoor units Clear up the air inlet and outlet or the heat exchanger of indoor and outdoor units Yes No Yes Yes Power off then restart the unit...

Страница 59: ...mistake IPM malfunction Outdoor fan ass y faulty Compressor malfunction Outdoor PCB faulty Trouble shooting Check the wiring between main PCB and compressor Correct the connection or replace the wire...

Страница 60: ...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 61: ...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 62: ...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 63: ...pressor checking Measure the resistance value of each winding by using the tester Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT Blue Red 1 57 20 68 1 75 20 68 0 75 20 68 Blue Black R...

Страница 64: ...Scan here to download the latest version of this manual wall mounted unit AIR CONDITIONING SYSTEMS...

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