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Omega OTEC IEWQ-R Series, Service Manual

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Service Manual

Table of Contents

Table of Contents

Part 

Ⅰ

: Technical Information

 .......................................................................1

1. Summary

 ......................................................................................................................1

3

. Removal Procedure

 .......................................................................................

26

3

.1 Removal Procedure of Indoor Unit

 ................................................................

26

3

.2 Removal Procedure of Outdoor Unit

 .............................................................

35

2

. Troubleshooting

 ..................................................................................................

2

2

.1 Flashing LED of Indoor/Outdoor Unit and Primary Judgement

 ............

2

2

.2 Procedure of Troubleshooting

 ..........................................................................

10

2

.3 Troubleshooting for Normal Malfunction

 ......................................................

24

Summary of Contents for OTEC IEWQ-R Series

Page 1: ...IEWQ HQ R Series High Wall Inverter Service Manual...

Page 2: ...Summary 1 3 Removal Procedure 26 3 1 Removal Procedure of Indoor Unit 26 3 2 Removal Procedure of Outdoor Unit 35 2 Troubleshooting 2 2 1 Flashing LED of Indoor Outdoor Unit and Primary Judgement 2 2...

Page 3: ...1 Technical Information Service Manual 1 Summary Part Technical Information Indoor Unit Outdoor Unit IEWQ036J3A RWI100 ICHQ036J3A RLH100 Remote Controller...

Page 4: ...scharge protection overload 5 Overcurrent protection E5 OFF 3S and blink 5 times OFF 1S and blink 5 times During cooling and drying operation compressor and outdoor fan stop while indoor fan operates...

Page 5: ...Outdoor ambient temperature sensor is open short circuited F3 OFF 3S and blink 3 times OFF 1S and blink 6 times During cooling and drying operating compressor stops while indoor fan operates During h...

Page 6: ...wiring board XT if the voltage is higher than 265VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic capacito...

Page 7: ...nction analysis of capacitor 29 Malfunction of module temperature sensor circuit P7 OFF 3S and blink 18 times During cooling and drying operation compressor will stop while indoor fan will operate Dur...

Page 8: ...malfunction 5 Malfunction of mainboard rev detecting circuit 37 Desynchro nizing of compressor H7 OFF 3S and blink 7 times During cooling and drying operation compressor will stop while indoor fan wi...

Page 9: ...t detection U5 OFF 3S and blink 13 times During cooling and drying operation the compressor will stop while indoor fan will operate During heating operating the complete unit will stop operation There...

Page 10: ...off for 0 5s and then blinks for 10s Not the error code It s the status code for the operation 54 Undefined outdoor unit error oE Cool compressor and outdoor fan stops operation while indoor fan oper...

Page 11: ...Possible reasons insufficient or too much refrigrant blockage of capillary an dincrease of suction temp improper running of compressor burning in or stuck of bearing damage of discharge valve malfunct...

Page 12: ...ard broken Malfunction diagnosis process Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted Start Insert the temperature sensor tightly Yes Yes Yes Y...

Page 13: ...on is eliminated Reinsert the wiring terminal of indoor fan It s the malfunction of main board Replace a new main board that is of the same model It s the malfunction of main board Replace a new main...

Page 14: ...the mainboard is defined abnormal Malfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model...

Page 15: ...of detecting plate WIFI JF Start Is malfunction eliminated The end check if the connection wire are correctly connected Replace the detecting plate with the same model Replace the mainboard with the s...

Page 16: ...wiring diagram Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Main board matches with display board Main board of IDU matches with that of ODU...

Page 17: ...than 200V Fault with the voltage testing circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminalL andN on wiring board XT power supply Voltage within 210VAC...

Page 18: ...wires of compressor according to the electric wiring diagram and then turn on the unit Check the connection between the control board and the compressor by referring to the electric wiring diagram Che...

Page 19: ...rature protection Is outdoor ambient temperature higher than 53 20 minutes after the complete unit is powered off Is heat dissipation of the indoor unit and outdoor unit abnormal Normal protection ple...

Page 20: ...for compressor stopping enough Fault diagnosis process Y N Y N N Y Y N Power on the unit Is stop time of the compressor longer than 3 minutes Restart it up after 3 minutes Does startup fail Are the w...

Page 21: ...r connected correctly Is connection sequence right Is the connection made in clockwise direction Connect the wires correctly Replace the control panel AP1 If the fault is eliminated Replace the compre...

Page 22: ...process 20 minutes after the complete unit is powered off Is the terminal FA for the electronic expansion valve connected correctly Connect the wires correctly Resistances between the first four pins...

Page 23: ...pment operate normally before the failure occurs The AP1 voltage detection circuit is at fault Check wiring inside of the indoor and outdoor units Are wires broken Check the communication circuit of t...

Page 24: ...e main board AP1 of the outdoor unit If the fault is eliminated Is the connection right Check the wiring of the indoor and outdoor units with reference to the wiring diagram Correctly connect the corr...

Page 25: ...swing louver is fully open Check if the capacity output of outdoor unit is equal to the capacity demand of indoor units Check if the indoor outdoor filters or radiating fins are dirty or blocked Clea...

Page 26: ...d for details Malfunction of compressor Compressor Can t operate Refer to point 5 of maintenance method for details 2 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Can t be Started Up 2 P...

Page 27: ...ipe Replace drain pipe Wrapping is not tight Water leaking from the pipe connection place of indoor unit Wrap it again and bundle it tightly 5 Compressor Can t Operate Possible causes Discriminating m...

Page 28: ...e refrigerant completely before removal 3 1 Removal Procedure of Indoor Unit Steps Procedure 1 Before disassembly of the unit 2 Remove filter panel clasps filter Axonometric drawing for the complete u...

Page 29: ...move panel 5 Remove horizontal louver display clasp panel horizontal louver Remove 2 screws fixing display and then remove the filter Pull the clasps at both sides slightly and then remove the panel R...

Page 30: ...screw cap screw front case Procedure Steps Remove screws fixing the top cover of electric box Remove the screw fixing detecting plate and then remove the detecting plate Note The position of detectio...

Page 31: ...e 8 Remove earthing wire 9 Remove electric box cover screw clasp clasp electric box cover Remove earthing screws and then remove the earthing wire Loosen clasps at the left side of electric box Loosen...

Page 32: ...l a b c Procedure Steps 10 Remove temperature sensor 11 Remove electric box temperature sensor screw electric box Pull out the indoor temperature sensor Pull out 6 sockets on PCB board Pull out two sc...

Page 33: ...rd water tray connection position for indoor and outdoor units pipe stopping plate screw screw damping board Pull the water tray upwards and then remove the water tray Separate the connection pipe bet...

Page 34: ...te of motor screw evaporator screw Remove screws between evaporator and bottom case Turn over the indoor unit and adjust the pipe line to the position as shown by the broken line Lift up the evaporato...

Page 35: ...tion and Maintenance Service Manual a Procedure Steps b c 18 Remove cross flow blade and motor blade motor Remove screws fixing cross flow blade and motor Remove the motor sub assy Separate two cross...

Page 36: ...71 Installation and Maintenance Service Manual a b Procedure Steps 19 Remove cushion rubber cushion rubber Remove the cushion rubber on cross flow blade Remove the cushion rubber from the base...

Page 37: ...e and then remove the top panel 2 Remove grille and panel Remove the 2 screws connecting the grille and the panel and then remove the grille top pane grille Handle Steps Procedure Valve cover Twist of...

Page 38: ...ront side panel the screws connecting the panel with the chassis and the motor support and then remove the panel 3 Remove and right side plate Right side plate Remove the screws connecting the right s...

Page 39: ...rminals and then pull the electric box upwards to remove it Remove the 4 tapping screws fixing the motor disconnect the leading wire insert of the motor and then remove the motor Remove the 2 tapping...

Page 40: ...sy Isolation sheet and Isolation sheet Remove the 3 screws fixing the isolationsheet and then remove the Isolation sheet 8 Remove 4 way valve assy and electronic expansion valve Discharge the refriger...

Page 41: ...ove the compressor Remove the screws connecting the support condenser and condenser assy and then remove the support condenser 9 Remove compressor compressor 10 Remove condenser sub assy a support b D...

Page 42: ...Tf Tcx1 8 32 Ambient temperature Fahrenheit display temperature o F Fahrenheit o F Celsius o C Fahrenheit display temperature o F Fahrenheit o F Celsius o C Fahrenheit display temperature o F Fahrenhe...

Page 43: ...llowing steps A Cut the pip Confirm the pipe length according to the distance of indoor unit and outdoor unit Cut the required pipe with pipe cutter B Remove the burrs Remove the burrs with shaper and...

Page 44: ...88 33 10 63 72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 064 1...

Page 45: ...983 5 84 61 34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 6...

Page 46: ...62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 2...

Page 47: ...OMEGAIEWQ HQ High Wall Inverter Service Manual info otecvrf com www otecvrf com info omegavrf com www omegavrf com IEWQ HQ I3A SM1R0622...

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