HUMIDIFIER SERVICE MANUAL MODEL NO.: PCMH45
Contents
1. AirTek HUMIDIFIER SERVICE MANUAL CAUTION e Before servicing the unit read the Safety Precautions in this manual e Only for authorized service MODEL NO PCMH45 CONTENT 1 2 Preface 1 1 Safety Precautions 1 2 Insulation Resistance Test 1 3 Specifications 1 4 Features 1 5 Warning amp Safety Rules 1 6 Operations 1 7 Cleaning amp Maintenance Disassembly Instructions 2 1 How To Change Carbon Filter 2 2 How To Change PCBA 2 2 1 Top cap amp air flow direction part 2 2 2 PCBA Box Cover amp Wiring Holder 2 2 3 PCBA 2 2 4 PCBA Wiring Connection 2 2 5 Wiring Color Connection 2 3 How To Change Fan Motor 2 3 1 Wiring Connection Between The PCBA And Fan Motor 2 3 2 Water Wheel 2 3 3 Water Reservoir 2 3 4 Split pin amp wheel Gear Of Synchronous Motor 2 3 5 Motor Cover 2 3 6 Wiring Holder amp Cable Ties 2 3 7 Wiring Cap 2 3 8 Fan Blade amp Motor 2 3 9 Wiring Color Connection 2 4 How To Change Drum Motor 2 4 1 Wiring Connection Between The PCBA And Drum Motor 2 4 2 Drum Motor 2 4 3 Drum Motor Wiring Connection 2 5 How To Change To New Water Wheel 2 5 1 Old Front Bearing Bracket And Old Spring 2 5 2 New Front Bearing Bracket And New Spring 2 5 3 New water wheel 2 6 How To Change To New Motor Shroud 2 6 1 Power switch holder power switch water inlet connector with water inlet tube motor capacitor synchronized motor 2 6 2 New Motor Shroud Troubleshooting Guide 3 1 Outside Dimensions2. 3 2 How it works 3 3 Troubleshooting Guide Schematic Diagram 4 1 Wiring Diagram 4 2 Wiring Color Description Exploded View Replacement Parts List AirTek 1 PREFACE This manual is designed to provide you with important service information Be sure to read the safety precautions prior to servicing the unit 1 1 Safety Precautions 1 When servicing set the POWER of the CONTROL PANEL to OFF and unplug the power cord Observe the original lead dress If a short circuit is found replace all parts which have been overheated or damaged by the short circuit 3 After servicing make an insulation resistance test to prevent the customer s exposure to shock hazards 1 2 Insulation Resistance Test Unplug the power cord and connect a jumper between 2 pins The grounding conductor green or green amp yellow is to be open Measure the resistance value with an ohm meter between the jumper lead and each exposed metallic part on the equipment at all MODES except POWER OFF 4 The value should be over 1 MO CO Na 1 3 Specifications PCMH45 Power Supply 220 240V 50Hz Input W Running Current A 0 3A Fan Type Fan Blade Air Direction Control Horizontal Louver Up amp Down Manual Fan Motor Internal Thermal Protector Power Cord 1 8m 3 wire with grounding Water Fill System Manual from top panel p Auto from tap water connector Water Tank Capacity 7 9 US Gallon 30 L Net Weight 27 3 I
3. Filter Open the protection guard of the filter by un screwing the protection guard Take out the dust filter and clean this by using a vacuum cleaner and rinse in warm water Before replacing make sure that the dust filter 1s fully dry Replace the dust filter and replace the protection guard and fix with the screw We recommend to replace the dust filter at least once a year J Jl IM TIT I IM IM X e gt AAA XA L gt gt lt A E 4 Cleaning inside and outside Use a soft cloth with mild soap to clean the outside and other inside parts with possible scale deposits of your humidifier Never use aggressive detergents to clean the unit In order to extend the lifetime of your humidifier we recommend to clean the unit inside outside and the water reservoir regular NO AirTek 2 DISASSEMBLY INSTRUCTIONS WARNING Before the following disassembly POWER is set to OFF and disconnected the power cord 2 1 How To Change Carbon Filter Use screw driver to remove 1 Remove the air inlet grille Get the carbon filter SS screw with head ST4 12 on the air inlet grille E NU AirTek 10 2 2 How To Change PCBA 2 2 1 Top cap amp air flow direction part Unlock and open the top cap Take out the air flow direction part WE d 2 2 2 PCBA Box Cover amp Wiring Holder Use screw driver to remove Use screw driver to remove Use screw
4. L Wi J Use screw driver to remove 1pc Remove the cable ties Use screw driver to remove SS screw with head ST3 10 on 2pcs SS screw with head the wiring holder ST3 12 on the wiring holder pl NV AirTek 14 2 3 7 Wiring Cap Remove the wiring cap of earth wire Remove the wiring cap below picture shown Note connection is between capacitor and the motor 2 3 8 Fan Blade amp Motor Remove 1pc SS nut M8 on the Take out the fan blade Use screw driver to remove fan blade carefully 4pcs SS screw with head ST4 12 to get the fan motor lt e 7 o 2 3 9 Wiring Color Connection Wiring color connection refers to part 4 2 Wiring Color Description E NY AirTek 15 2 4 How To Change Drum Motor Open the top cap and take out the air flow direction part follow the procedure 2 2 1 Remove the PCBA box cover and wiring holder follow the procedure 2 2 2 Remove the PCBA follow the procedure 2 2 3 Remove the water wheel and water reservoir follow the procedure 2 3 2 and 2 3 3 Remove the split pin amp wheel gear of synchronous motor follow the procedure 2 3 4 Remove the motor cover follow the procedure 2 3 5 Remove the wiring holder amp cable ties follow the procedure 2 3 6 2 4 4 Wiring Connection Between The PCBA And Drum Motor Use the electric soldering iron to unplug the wiring connection between the PCBA and drum motor 2 pink line 2 4 2 Drum Motor Use screw driver t
5. follow the procedure 2 3 8 2 6 1 Power switch holder power switch water inlet connector with water inlet tube motor capacitor synchronized motor Use screw driver to remove 1pc Use screw driver to remove Use screw driver to remove SS screw with head ST3 10 to 2pcs SS screw with head fpc SS screw with head remove the power switch ST4 8 to remove the water ST3 12 to remove the motor holder and then remove the inlet connector with water capacitor power switch inlet tube Use screw driver to remove 2pcs SS screw with head ST4 8 to remove the synchronized motor 2 6 2 New Motor Shroud Install the new motor shroud follow the above step E Ny AirTek 18 3 TROUBLESHOOTING GUIDE 3 1 Outside Dimensions L m Width 745 mm 29 3 Depth 440 mm 17 3 Height 750 mm 29 5 3 2 How it works This large humidifier s designed to inrease the room humidity up to a specified level two major mechanism is employed 1 A r flow system which adopts an asynchronous motor and axial flow fan to drive air going through the sponge pads and blow certain humid air into the room 2 Water wheel which wears the sponge on the drum it can be driven by a synchronous motor and gear mechanism the sponge pads bring some water from the water tank through the drum rotation and the fan will remove certain moisture from the sponge by evaporating principle Note Before turn on the unit make sure water wheel sna
6. maximize and extend the life of vour humidifier Always disconnect the unit from the wall socket before cleaning and maintenance 1 Evaporative Pads The humidifier evaporative pads have several functions They are the most important parts of your humidifier since they perform the following functions Moisture Evaporation Air cleaning It is essential to keep the pads clean and replace them periodically at least yearly but preferably twice a year depending on the amount of use water hardness local air pollution To exchange the pads open the humidifier top cap take out the air flow direction part figure 3 take carefully out the wheel figure 4 open the clip holding the round foam pad figure 5 remove the circular foam disk and clean the foam pads with white vinegar or de scaling agent or replace with new ones if too old figure 6 Relocate in original position Fix foam pads in correct position with clip Do the same with the foam pad that sits around the wheel gt o i N V E I NN 7 Figure 3 Figure 4 Figure 5 Figure 6 NO AirTek 2 Water Reservior Open the humidifier top cap take out the air flow direction part take carefully out the wheel unlock the water reservoir and carefully pull back the water reservoir Clean all remaining scale with scouring pad Relocate water reservoir by smoothly pushing back till the water reservoir is in the correct position and lock 3
7. shock do not use this appliance with any solid state speed control device DO NOT leave the appliance operating unattended for any extended period of time This appliance is not intended for use by persons including children or elderly with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety People who have not read this manual or are not use to this kind of product should not be allowed to use the unit f NY AirTek DO NOT let children play with the packaging for example plastic Bags as there is a danger of suffocation Children should be supervised to ensure that they do not play with the appliance If the unit is damaged or it malfunctions do not continue to operate it Only use in the upright position on a flat level surface This product is not intended for use in wet or damp locations Never locate the product where it may fall into a bathtub or other water container DO NOT use in bathrooms Do not use in outdoors When it is not in use always store in a dry area NOTE OPERATE THE UNIT WHEN THE WATER TANK IS FILLED WITH CLEAN WATER f NY AirTek 1 6 Operations Control Panel I O O External Sensor Operation Instructions FILL WATER Lift up the water inlet cover fill water into the tank through a tube Figure 1 once water reaches to
8. 41 Rpin FORA 25 33 3100805 Gear pte o o C34 os100005 water intet connector ki 1 35 ostooara motors A 37 03301029 _ powerswitch fete J 1 e 02100914 _powerswiennaider hro 1 C39 oasoorso Synchronized moor anms 31 40 03101222 meshfilter parsan 41 03100883 Reargrille paa 42 og1oos7e Rearcover ea o J 1 43 o3200309 menut mes 1 44 03200887 Fanwasher IRR aut 46 ossoogrr Fanmoor IR 47 09100880 motorbase eme 8 03200462 Rearbearingbracket Rm 1 49 o3t00916 Sliding bearing posg 2 50 ostsoo Watrwhee HE Water wheel shaft 7k TC HH E Of 58 59 RR Ea 03100913 Water tank lock IK RE EN 59 03300094 Powercord aR 60 03300025 Motor capacitor e oo t TRA Moi o 62 o3200337 5cCiretip e 3 2 63 09100910 Humidity sensor cover IRR t 64 02100109 Water wheel assembly IR HK alt NE REN 66 02100128 Tap water connector assembly ixwatt 1 67 03200938 6ciretip r 3 4 68 os101419 Waterindicaterwindow ISS 1 69 03200541 Overtiow cover KE Y 26 a a Ala a NO l NO To www ons Rubber pad ore Ce owown os rubber ped oes 73 0320000 NutM2a a PR 775 wmes poke C 77 03101408 Piston LUI BT 80 03101409 vave nt Nut 7 16 24 E ae RE7 16 24 86 03200529 Tap water connector EE Aut Water wheel assembly amp front T 21
9. bs 12 4 kg Outer Dimension 29 5 x 17 3 x 29 3 W x D xH 750 x 440 x 745 mm NY AirTek 1 4 Features Very powerful airflow up to 500 m hr or 294 CFM Carbon filter for air cleaning Adjustable humidification level to your comfort L low the unit will keep the humidity level around the 30 RH M medium the unit will keep the humidity level around the 45 RH H high the unit will keep the humidity level around the 60 RH C continuously the unit will work continuously Up to 8 hour timer Mounted with castors for easy mobility 3 speeds high medium and low Low High water alarm 30 liter water tank capacity 1 5 Warning amp Safety Rules WARNING This appliance is intended for use in a domestic or office environment only Any other use is not recommended by the manufacturer and may cause fire electrical shocks or other injury to person or property When using electrical appliances basic safety precautions should always be followed Your humidifier should run on 220 240 Volt AC 50 Hz current only Check the household voltage to ensure it matches the appliance s rate specification Extreme care should be taken when any product is used by or near children and whenever the product is left operating and unattended Before operating the product remove it from its packaging and check it is in good condition If the supply cord is damaged it must be replaced by the manufacturer its servic
10. driver to remove 2pcs SS screw with head 4pcs SS screw with head 2pcs SS screw with head ST4 16 on the wiring holder ST3 12 on the PCBA box ST3 12 on the wiring holder NG AirTek 11 2 2 4 PCBA Wiring Connection Unplug the wiring connection Unplug the wiring connection Use the electric soldering iron to unplug the wiring connection to get the PCBA 7 2 2 5 Wiring Color Connection Wiring color connection refers to part 4 2 Wiring Color Description NU AirTek 12 2 3 How To Change Fan Motor Open the top cap and take out the air flow direction part follow the procedure 2 2 1 Remove the PCBA box cover and wiring holder follow the procedure 2 2 2 Remove the PCBA follow the procedure 2 2 3 2 3 1 Wiring Connection Between The PCBA And Fan Motor Use the electric soldering iron to unplug the wiring connection between the PCBA and fan motor black white yellow amp blue wire 13 O AirTek 2 3 4 Split pin amp wheel Gear Of Synchronous Motor Unlock and take out the split pin of Take out the wheel gear of syn syn motor motor 2 3 5 Motor Shroud Use screw driver to remove 8pcs SS screw with head ST4 12 on motor shroud 2 3 6 Wiring Holder amp Cable Ties Use screw driver to remove Remove the cable ties Use screw driver to remove 2pcs SS screw with head 2pcs SS screw with head ST3 12 on the wiring holder ST3 12 on the wiring holder 4 q w
11. e agent or similarly qualified persons in order to avoid a hazard DO NOT operate any product with a damaged cord or plug DO NOT use an extension cord with this appliance DO NOT run power cord under carpeting or cover with rugs or runners Arrange the cord away from areas where it may be tripped over Unplug the appliance during filling and cleaning Always unplug the appliance from the power source before servicing or removing the unit Disconnect the power supply before servicing or cleaning operation Remove the power cord from the electrical receptacle by grasping and pulling on the power cord plug end only never from the cord DO NOT use the product in areas where gasoline paint or other flammable goods and objects are stored DO NOT attempt to repair or adjust any electrical or mechanical functions on this unit as this may void warranty Take the unit to a qualified service engineer for inspection and repair Verify that the voltage power source matches the appliance electrical specifications Improper voltage will burn out the blower fan PCBA and will void the warranty DO NOT cover the air inlet or outlet on the appliance as this may cause motor damage DO NOT insert or allow objects to enter any ventilation exhaust opening or water tank as this may damage the product and could cause an electrical shock or fire DO NOT operate with media removed as this will overload and damage the motor To reduce the risk of fire or electric
12. et the unit automatically on off within 2h 4h or 8h while the unit 1s running you can choose timing off while the unit stops you can choose timing on 6 Top cover is equipped with a kid lock when you open it for service or removing water wheel please use a coin to unlock it meanwhile the power will be cut off automatically in case of any electrical shock or injures to persons 7 Once the water drops to the Min level of the tank the unit will give 10sec alarm and meanwhile the red light will illuminate and keep flashing You can only reset it by filling water into the tank 8 Memory function 1s applied to the unit when the unit 1s routinely turned off without power interruption the previous Fan amp Humidity settings will become the default ones 9 The unit has 6 casters of which two are with a lock These two casters are at the left and right of rear side of the unit We strongly recommend when the unit is in operation these two casters are locked by pushing down the lock lever Note gt once the room humidity is more than the set parameter the unit will not turn on gt Please slightly pushing the unit avoid water splashing to the floor or electrical parts gt whenrestarting the unit or opening and re placing the top cover TANK FULL and TANK EMPTY sensor will re detect the water level and give the signals accordingly Y W A Vv NY AirTek 1 7 CLEANING amp MAINTENANCE Frequent cleaning is necessary to
13. l 3 Green Yellow BL Earth Ground Main Motor 1 White High speed 2 Yellow LI Medium speed 3 Blue Low speed 4 Black o Neutral 5 Red L 6 Brown L 7 Green Yelow BO Earth Ground Drum Motor 1 Pink 2 Pink LJ PCBA Cool Com1 RH Com2 M sensor U LL Hi water level Tm ll Lo water level light Float switch to capacitor by end closed connector to capacitor by end closed connector 21 f NY AirTek 9 EXPLODED VIEW WA NS 22 Kate qua Ne ig SS es NN N wy E gt NO in DN e ES M LA on NO 65 N PBA nce Zoe Hoek for 82 80 84 85 86 aude See tye NE Ree UA A eu 23 NO 88 24 6 REPLACEMENT PARTS LIST E PARTNAME CHINESE QUANTITY 02100135 4 09100886 03100904 Tank wheel bracket kgs 03100897 Watertankcaster K 03100885 03100903 03301012 03300170 03100908 z EE m JJ U U gt JJ E O Q Water level light PK ALT 12 03100877 03200461 Frontbearingbracket ERT 03200449 Spring w o 03100906 03100800 Top cover lock holder mals 03100887 09100893 03100882 N TT j Tri SCH TR 26 21 Z HT JE ENT 03300850 03200500 FA U 8 30 03100898 Water wheel link A KFE STR 3 03100902 Ring sponge clip AOA 2 032003
14. o remove 2pcs SS screw with head ST4 8 to get the drum motor Ou Y P A E REG r QNGTOU ZHAOQING LONGT rg RONIC A ELECTRIC CO NE RoHS 2 4 3 Drum Motor Wiring Connection Drum motor wiring connection refers to part 4 2 Wiring Color Description NY AirTek 16 2 5 How To Change To New Water Wheel Open the top cap and take out the air flow direction part follow the procedure 2 2 1 Remove the old water wheel follow the procedure 2 3 2 2 5 1 Old Front Bearing Bracket And Old Spring Use screw driver to remove Use screw driver to remove 4pcs SS screw with head 2pcs SS screw with head ST4 12 to get the old front ST3 10 to get the old bearing bracket ST4 12 to fix the new front bearing bracket e NY AirTek 17 2 6 How To Change To New Motor Shroud Open the top cap and take out the air flow direction part follow the procedure 2 2 1 Remove the PCBA box cover and wiring holder follow the procedure 2 2 2 Remove the PCBA follow the procedure 2 2 3 Remove the wiring connection between the PCBA and fan motor follow the procedure 2 3 1 Remove the water wheel follow the procedure 2 3 2 Remove the water reservoir follow the procedure 2 3 3 Remove the split pin amp wheel gear of synchronous motor follow the procedure 2 3 4 Remove the old motor shroud follow the procedure 2 3 5 Remove the wiring holder amp cable ties follow the procedure 2 3 6 Remove the fan blade amp motor
15. ps into both end bearing correctly otherwise the water wheel cannot be driven f NY AirTek 19 3 3 Troubleshooting Guide The following troubleshooting guide is intended to address the most common symptoms and is by no means exhaustive If symptoms persist call a qualified service provider Only a certified electrician should complete any electrical work Unplug and disconnect the appliance from the power source before attempting to troubleshoot any of the following symptoms Possible Cause Solution Turn off the unit Follow instruction to fill the water tank with clean water Dust filter is dirty or has Clean or replace filter residue Turn off and unplug the product or change the main motor according to the procedure 2 3 Stale or stagnant water in water Drain flush and clean water Musty or unpleasant odor en iani PCB board may be damaged Turn off and unplug the The unit does not respond Damaged PCBA product or change the PCBA according to the procedure 2 2 Water is below minimum water Humidity output minimal to level in tank none Abnormal noise inside the product Motor or fan blade problem NOTE The form is only for reference If any help please call customer service f NY AirTek 20 4 SCHEMATIC DIAGRAM 4 1 Wiring Diagram N PLUG cut off uen H Gre Yel Capacitor 4 2 Wiring Color Description Power Cord 1 Brown E Live 2 Blue L Neutra
16. the max level the unit will give 10sec alarm and meanwhile the green light will be illuminated You can also fill water directly from the tank by 1 step unlocking opening the top cover removing the water wheel 2 step unlocking the tank and 3 step pulling the tank out Figure 2 Figure 1 Figure 2 Note in case of any injuries to persons whenever filling water into the tank please plug out the unit and do not spill water on the unit controls and inside wirings NO AirTek Plug the power cord into a properly grounded 220 240Volt AC outlet the power indicator will illuminate 2 To turn the unit on press the button the unit will run in the default setting low fan speed and continuous humidity 3 Use the button to change the fan speed between High Medium and Low the indicator will show the setting you have selected the high fan speed will result in quicker moisture increase 4 Press the 4 button to choose either Low Medium High an Continuous humidity the indicator will show the setting you have selected so the room is kept at comfortable concentration the unit will cycle ON and OFF keeping the desired level of comfort Note gt L low the unit will keep the humidity level around the 30 RH M medium the unit will keep the humidity level around the 45 RH H high the unit will keep the humidity level around the 60 RH C continuously the unit will work continuously 5 Timer button is to s
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