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Chigo CS-25V3A-MA114A, Service Manual

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Chigo CS-25V3A-MA114A Service Manual Download Page 1

 

1 

 

CHIGO 

Service manual 

Room airconditioner 

Split Wall-Mounting Type 

 

 

 

 

                                                                                                         

 

 

 

  NOTE: 

 

                                                                                                                  Before servicing the unit, please first read the service 

manual  and  then  contact with  your  service center  if 

meet problem                                                               

   

 

 

 

 

 

Summary of Contents for CS-25V3A-MA114A

Page 1: ...1 CHIGO Service manual Room airconditioner Split Wall Mounting Type NOTE Before servicing the unit please first read the service manual and then contact with your service center if meet problem...

Page 2: ...B Wiring diagram page 4 5 C Installation page 6 D Exploded view and part list page 16 E Components fault and test methods page 20 F Failure display page 29 G Troubleshooting page 31 H Usual failure an...

Page 3: ...3 A Summary 1 indoor unit 2 outdoor unit 3 remote controller...

Page 4: ...4 B Wiring diagram Wiring diagram INDOOR CS 25V3A MA114A CS 35V3A MA114A...

Page 5: ...5 Wiring diagram OUTDOOR CS 25V3A Y4N CS 35V3A Y4P...

Page 6: ...d test again Ensure the air conditioner works normally If it is the problem of air conditioner report it to the vendor 9 During installation if the service people find that the user s power supply has...

Page 7: ...the air conditioner 17 Pressure gauge For measuring the working pressure of the air conditioner system 18 Level gauge or plummet 1 pc 19 Putty scraper 1 pc 20 Hex wrench 1 set 21 Electric probe 22 Sa...

Page 8: ...ter to measure the power voltage which shall be within 10 of the rated voltage Use special line for the power supply of air conditioners and ensuring that the capacity of entire supply line branch lin...

Page 9: ...below the indoor unit The indoor unit shall be able to blow the cold and hot air evenly to everywhere of the room According to the power supply mode powered by indoor or outdoor unit and the length of...

Page 10: ...ightly for 90 before stop 3 Route the pipe along the left side This step is the same as the above step The only difference is that the bending angle is higher than that in the previous step that is it...

Page 11: ...ut of the room and put it onto the support with care Fix with 4 bolts 10mm Note The installation people working on the 2nd floor or higher must wear safety belt The outdoor unit must be tied securely...

Page 12: ...e a connection pipe with expanded mouth coat frozen oil evenly onto the connector of the 2 way 3 way valve and the expanded mouth Put the expanded mouth and connector on the same straight line and rot...

Page 13: ...position and tighten every nut and check for leakage The connector with leakage problem should be reinstalled Pipe Wrapping and Wall Hole Blocking Sort the pipeline in good order Use pipe bender when...

Page 14: ...s are away from the machine do check it s safe before turn the power on Power supply connection Before installation and safety inspection electrification is strictly forbidden Power connection shall b...

Page 15: ...f disassembling and cleaning the filter net replacing the air filter to the user and instruct them to operate until they are skillful The outdoor unit shall be ventilated so as to prevent sundries fro...

Page 16: ...G LOUVER 4 CONNECTING LEVER 5 WATER RESISTANT RING OF WATERPOUT 6 LOUVER SUPPORT POLE 7 GUIDE BEARING 8 OUTLET PART 9 BASE 10 CROSS FLOW FAN 11 BEARING 12 EVAPORATOR 13 EVAPORATOR PLASTIC LEFT PLATE 1...

Page 17: ...IGHT PLATE 1 26 EVAPORATOR RIGHT PLATE 2 27 MOTOR PLATEN 28 TUBE TEMP SENSOR 29 ROOM TEMP SENSOR 30 ELECTRIC CONTROL PLATE 31 TRANSFORMER 32 TERMINAL BOARD 33 WIRE CLIP 34 ELECTRIC BOX 35 INDOOR MOTOR...

Page 18: ...18 2 Outdoor CS 25V3A Y4N CS 35V3A Y4P...

Page 19: ...op panel 10 Rear Grill 11 Four way valve assembly 12 Intake pipe for the condensor 13 Suction pipe 14 Capillary Assy 15 Suction pipe 16 Discharge pipe 17 Electrical boxes 18 Right panel 19 Large handl...

Page 20: ...ed or broken 2 AC motor of indoor and outdoor unit 1 General inspection Testing method In the case of non power twist motor rotor by hand meanwhile shaking motor checking is there any rust whether blo...

Page 21: ...ultimeter black pen connect base red pen connect other two feet and the resistance should be a few hundred ohm otherwise the transistor damaged 10 Infrared Receiver Module choose diode from multimeter...

Page 22: ...heck voltage of high medium and low wind relay the normal voltage is DC12V c for the tap fan check whether the relay is normal or may replace relay d check whether the AC power supply circuit is norma...

Page 23: ...eck whether the relay RY3 is normal if not normal then the replace the relay d check whether the resistance of the R7 R10 is normal if not normal then the replace the related resistance e check whethe...

Page 24: ...t means loss tangent has exceeded the limitvalue 0 0018 Check capacitance check by pointer type multimeter if the pointer oscillation amplitude is bigger than the standard capacitance that means capac...

Page 25: ...t circuit and outlet the open circuit 2 Coil Open circuit check by multimeter select the appropriate range measure the resistance if the resistance is that means transformer coil open circuit or open...

Page 26: ...hen the most for crystal 2 ceramic oscillator is damaged 4 Show insufficiency Testing method make sure the unit running installed battery to remote control press various function keys Fault judgement...

Page 27: ...ck torque Self positioning Torque under the action of this torque step motor should not lose not jitter non skid 3 Resistance test short circuit Measure resistance of each winding by universal meter i...

Page 28: ...esistance is or tens of thousands of ohms means insulating property is good if the measured resistance of the smaller or 0 means core screen has been destroyed 4 Check on running Testing method make s...

Page 29: ...oor units F1 1 lighten 2 Indoor ambient temp sensor fault F2 2 lighten 3 Indoor coil temperature sensor fault Include Inlet middle of pipe outlet F3 3 lighten 4 Indoor fan fault F4 4 lighten Outdoor p...

Page 30: ...arts 1 Evaporator temp protection P1 lighten 1 Outdoor parts 1 Overheat over current protection of inverter module P2 lighten 2 2 Over current protection P3 lighten 3 3 Compressor discharging temp pro...

Page 31: ...rd is defective Replace P C board Connect CN properly Replace TA sensor Is CN TP1 sensor connector connected properly Is TP1 sensor resistance value 5KO at 25 normal Indoor P C board is defective Repl...

Page 32: ...tor connector Replace indoor fan motor Replace main P C board Replace bearing YES YES YES NO NO NO Turn off indoor unit and rotate cross flow fan by hand when the unit is on standby Is it possible to...

Page 33: ...defective Is resistance value of room sensor Tr and heat exchanger sensor TP1 normal Room sensor or heat exchanger sensor is defective Replace room sensor or heat exchanger sensor Compressor is defect...

Page 34: ...START STOP button Does radio sound is affected by remote control when a signal is transmitted at distance of 5 cm from radio Does indoor unit start to operate by automatic restart function Is transmi...

Page 35: ...e beeper beep Is the display all off Check the connector on display PCB connected to control PCB Check the display PCB itself Is the unit display normal Does outdoor unit run Does the compressor run n...

Page 36: ...fuse of indoor PCB burn out Change a good remote does the air conditioner running Is the power supply no problem Does the 12V and 5V of indoor PCB have Replace PCB normal Does the electric switch cut...

Page 37: ...the set temperature The condenser blocked by dust or others clean the dust and dirt Too much quantity of refrigerant take the redundant refrigerant out Blockage in airinlet or air outlet Clear the obs...

Page 38: ...sor suction or venting capability is very poor Replace this compressor Four way valve slight mixes up Let the four way valve moving continually Replace the four way valve if it can t move The capillar...

Page 39: ...ectric outlet missing phrase for supply voltage Match right power supply voltage is too low install voltage regulator The main fuse burn out Replace fuse The voltage dependent resistor has been burst...

Page 40: ...door motor rusted or electromagnetic noise Replace this motor The cross flow fan collides with the slot basis Reconfigure The noise of the refrigerant moving Readjust the position of the H L pressure...

Page 41: ...g between the bending tube and the PCB s wire A lot of evaporator fins fall down to lead to bad flow Renovate these faulty fins The indoor unit didn t install correctly according to the requirement Pl...

Page 42: ...42 I User s Manual...

Page 43: ...43 The name of each part and its function...

Page 44: ...44 Remote controller...

Page 45: ...45 Use of remote controller Operating machine in selected modes...

Page 46: ...46...

Page 47: ...47 Basic principles and performances Features of Heating Operations Methods of maintenance...

Page 48: ...48...

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