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MUND CLIMA MUPR-H6 Service Manual Download Page 42

 

42 

 

10. Troubleshooting 

Safety 

 

Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity 

power in capacitor. 

 

 

 

Electrolytic Capacitors

 

(HIGH VOLTAGE! CAUTION!) 

 

 

For other models, please connect discharge resistance (approx.100

Ω 40W) or soldering iron (plug) b, - 

terminals of the electrolytic capacitor on the contrary side of the outdoor PCB. 

 

Note: The picture above is only for reference. The plug of your side may be different. 

 

Summary of Contents for MUPR-H6

Page 1: ...L20015 to CL20018 MUPR H6 www mundoclima com Service manual Thank you very muchfor purchasing our products Please read this manual carefully before installing and using the unit INVERTER SERIE H6 AESF...

Page 2: ...on for the first time 20 6 5 Adding the refrigerant after running the system for many years 21 6 6 Re installation while the indoor unit need to be repaired 22 6 7 Re installation while the outdoor un...

Page 3: ...oduct Sharp edges could cause injury 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...

Page 4: ...levels may cause failure of product Install 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 avo...

Page 5: ...l injury Replace the all batteries in the 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 recha...

Page 6: ...f Indoor Outdoor Units Capacity Indoor units Outdoor units 9k MUPR 09 H6 UI20015 MUPR 09 H6 UE20015 12k MUPR 12 H6 UI20016 MUPR 12 H6 UE20016 18k MUPR 18 H6 UI20017 MUPR 18 H6 UE20017 24k MUPR 24 H6 U...

Page 7: ...7 3 Dimension 3 1 Indoor Unit Model W D H MUPR 09 H6 UI20015 717 193 302 MUPR 12 H6 UI20016 805 193 302 MUPR 18 H6 UI20017 964 222 325 MUPR 24 H6 UI20018 1106 232 342...

Page 8: ...8 For MUPR 09 H6 UI20015...

Page 9: ...9 For MUPR 12 H6 UI20016 For MUPR 18 H6 UI20017...

Page 10: ...10 For MUPR 24 H6 UI20018 3 2 Outdoor Unit...

Page 11: ...11 For MUPR 09 H6 UE20015...

Page 12: ...12 For MUPR 12 H6 UE20016 MUPR 18 H6 UE20017...

Page 13: ...13 For MUPR 24 H6 UE20018...

Page 14: ...E GAS SIDE HEAT EXCHANGE 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 CHEC...

Page 15: ...1W standby control feature Applicable for MULTI and MONO unit without 1W standby control feature OPTIONAL MAIN BOARD 5 CN2 CN4 CN1 CN40 CN43 CN32 2 CN42 CN41 CN45 CN46 CN44 X Y E 12V 5V HA HB 0 8 4 1...

Page 16: ...PAN HEATER CN 15 OPTIONAL CN 60 CRANKCASE HEATER CN 17 OPTIONAL BLUE BROWN YELLOW OR BLACK INDOOR UNIT S W 2 N L N POWER SUPPLY RED BLUE Y G 1 L Y G AMBIENT TEMP SENSOR DISCHARGE TEMP SENSOR CN 21 CO...

Page 17: ...BIENT TEMPERATURESENSOR WHITE BLACK DISCHARGE SENSOR OUTDOOR MAIN PCB BLUE BLACK RED CN13 CN12 L OUT 4 WAY CN414 REACTOR BLUE BLUE U V W Y G CN6 1 Y G RED 1 L 2 N S L N TO INDOOR UNIT POWER SUPPLY BLU...

Page 18: ...4 6500 663kgf cm 6700 683kgf cm 6 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...

Page 19: ...ngth A m Additional refrigerant g m Gas Liquid MUPR 09 H6 3 8 9 52 1 4 6 35 5 10 25 15 MUPR 12 H6 3 8 9 52 1 4 6 35 5 10 25 15 MUPR 18 H6 1 2 12 7 1 4 6 35 5 20 30 15 MUPR 24 H6 5 8 15 9 3 8 9 52 5 25...

Page 20: ...he 3 way valves gas service port 3 Connect the 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 evac...

Page 21: ...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 refrigerant is R410A make the cylinder bottom...

Page 22: ...to operate the valve stems 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Air purging of the charge hose Open the handle Lo valve of the manifold valv...

Page 23: ...ng 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 vacuum pump to the valve at the bottom...

Page 24: ...little to loosen the fastener Step2 Pull the filter gently along the horizontal direction Step3 Pull out the filter 7 2 How to Remove the horizontal louver Step1 Open the horizontal louver push the lo...

Page 25: ...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...

Page 26: ...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...

Page 27: ...e the panel to remove the PCB in order to show clearly inside these pictures are without panel 7 6 How to Remove the Electrical control box Step1 Remove screw A B C pull out the coil temp sensor D fro...

Page 28: ...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...

Page 29: ...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...

Page 30: ...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 condensation Please set the ve...

Page 31: ...en Timer ON Fresh Swing Turbo 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 Dispaly...

Page 32: ...top working 9 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 w...

Page 33: ...current is more than setting value the current protection function will be activated and the compressor will stop 9 4 2 2 Outdoor fan running rules The outdoor unit will be run at different fan speed...

Page 34: ...op 9 4 3 2 Outdoor fan running rules The outdoor unit will be run at different fan speed according to T4 For different outdoor units the fan speeds are different T4 E D C B A A 9 4 3 3 Indoor fan runn...

Page 35: ...an only mode according to T T T1 Ts T1 Ts Cooling Heating Fan only Heating For cooling only models they will run at fan speed Indoor fan will run at auto fan of the relevant mode The louver operates s...

Page 36: ...a will show EC when the outdoor unit detects refrigerant leakage 9 4 10 8 Heating function In heating operation the preset temperature of the air conditioner can be as lower as 8 which keeps the room...

Page 37: ...nt breeze which will reduce the noise to the lowest level and create a quiet and comfortable room for you 9 4 14 Multi function board optional CL94383 For MUPR H6 series On off port Alarm port XYE por...

Page 38: ...splay 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 t...

Page 39: ...01 109 b0 b1 b9 110 111 119 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...

Page 40: ...ired controller KJR 120G TF E port CN41 CN42 Note 4 cored wired controller Central controller and Non polar wired controller are mutually exclusive They can only be chosen one of three at the same tim...

Page 41: ...st be set differently The connection method must be Bus type 9 5 4 2 The setting state are the same for all the indoor units connected to the same Non polar wired controller 9 5 5 Alarm output port CN...

Page 42: ...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 electro...

Page 43: ...F0 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...

Page 44: ...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 repr...

Page 45: ...start 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 Power on Is the error ext...

Page 46: ...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...

Page 47: ...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...

Page 48: ...us 4 seconds 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 such as leakage or blocking Troubl...

Page 49: ...sampling 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 tempera...

Page 50: ...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 replac...

Page 51: ...on 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 N...

Page 52: ...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...

Page 53: ...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 Ye...

Page 54: ...rouble 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...

Page 55: ...g 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 wir...

Page 56: ...temp T4 sensor Compressor discharge temp T5 sensor Measure the resistance value of each winding by using the multi meter Table 1 Some frequently used R T data for T1 T2 T3 and T4 sensor Temperature 5...

Page 57: ...easure the resistance value of each winding by using the tester Position Resistance Value ASN98D22UFZ MUPR 09 12 H6 ASM135D23UFZ MUPR 18 H6 ATF235D22UMT MUPR 24 H6 Blue Red 1 57 20 68 1 75 20 68 0 75...

Page 58: ...ASK FOR MORE INFORMATION Phone 34 93 446 27 80 eMail info mundoclima com TECHNICAL ASSISTANCE Phone 34 93 652 53 57 www mundoclima com...

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