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Trouble shooting

page 11

11. Trouble shooting

Problems

Reasons

How to solve

Notice

Hot water is not hot

Cold water is not 

cold (<10C)

No water come out 

from the taps

Tap flow is too slow 

(<1.5L/min)

Heating  noise

Cooling noise

Pump noise

Water has taste

Pump doesn’t work

Water pump work 

continuously

Door gap is too big 

Door gap is not 

even

Door can’t be closed 

tightly

1. Switch doesn’t work (Or switched off on LCD panel)

2. Fuse(s) burnt

3. Control board and NTC sensors don’t work

4. Heater doesn’t work 

5. Wires are disconnected

1. Check switch (Turn on by touching LCD key)

2. Check fuse(s)

3. Check heater

4. Check control board and NTC

5. Check wiring 

1.Switch doesn’t work (Or switched off on LCD panel)

2.Fuse burnt

3.Control board and NTC sensor don’t work

4.Compressor doesn’t work

5.Refrigeration sys leaks 

6.Wires are disconnected

1.Check switch (Turn on by touching LCD key)

2.Check fuse 

3.Check control board and NTC

4.Check compressor

5.Check the temperature of condenser, hot 

means refrigeration sys works 

6.Check wiring

1.Bottle probe leaks

2.Air pump doesn’t work

3.Control board doesn’t work

4.Float switch and float assembly have problem

1. Check O rings of the stick, reinstall the probe 

assembly

2. Check air pump and it’s wire connection

3. Check control board

4. Check float switch and float assembly

1.Water level is too low in the water reservoir

2.Silicone tube is twisted

1.Check float assembly, check baffle plate 

inside the water reservoir

2.Check silicone tube

1.60 DbA in 2-3 minutes is normal when water starts boiling

2.Voltage is too high

1.Use dbmeter check if it is too high

2.Check voltage is 220V or not.

1.Voltage and frequency are unstable

2.Condenser or internal parts are not well installed result 

resonance

1.Check voltage and frequency

2.Hold the condenser by hand, if the noise 

disappear, then put rubber pad between 

condenser and side panel

1.Installation is not good

2.Probe assembly results bigger noise sometimes

1.Check the installation, especially the soft 

sleeve

2.Take apart the probe assembly to see if it is 

normal, then change a new one.

1.Source water may has taste or out of date

2.Cooler may not be cleaned when first time use or long time 

use

1.Change new bottled water and clean the 

cooler.

2.Flush the cooler for a few times with boiling 

treatment according to the taste treatment 

instruction.

1.Probe or tube leak

2.Door switch or float switch failure

3.Transformer or Control board don’t work

4.Wire connection failure

5.Air pump doesn’t work

1.Check the probe and O rings, then reinstall

2.Check door switch and float switch

3.Check transformer(Check if the LED light 

work) and control board

4.Check wire connection

1.Wrong wire connection 

2.Control board doesn’t work

1.Check wire connection

2.Change control board

Door hinge plate distort

Change hinge plate or add washer above the 

hinge shaft

Diagonal distort

Rectify the corner diagonally according to the 

instruction of “How to fix the door gap”  

1.Door distort diagonally or the folding edge distort obtusely

2.Door folding edge distort

1.Rectify the door by hand

2.Rectify the edge by hand

Summary of Contents for SWD-78EHL-SL

Page 1: ...the interests of user safety Required by safety regulations in some countries the set should be restored to its original condition and only parts identical to those specified should be used CONTENTS Parts marked with are important for maintaining the safety of the set Be sure to replace these parts with specified ones for maintaining the safety and performance of the set This document has been pub...

Page 2: ... of SWD 78EHL SL Hot water sensor 2 Cold water sensor Hot water sensor 1 Heating Cooling Cooling Relay Heating Triac N E L AC 14V Main control board Door switch sensor Pump Water level sensor M Dry burn thermostat autoreset Temperature fuse Compressor Heater Driver board MCU LCD Ozonator Water flow sensor ...

Page 3: ...0 250 female terminal 250 female terminal 5 6WA075F01B Hot tank wire 1 Black 750 250 female terminal 250 female terminal 6 6WA065FX1W Compressor wire 1 White 650 250 female terminal 250 flag female terminal 7 6WA065FX1L Compressor wire 1 Blue 650 250 female terminal 250 flag female terminal 8 6WA090BX1R Hot tank sensor 1 Red 900 interior XHB 2Y 9 6WA090BX1B Hot tank sensor 1 Black 900 interior XHB...

Page 4: ...pillary Compressor Condenser Cold water sensor Reservior Hot tap tank Hot water Cold tap Cook tap Cold water Hot air return Ozonator Optional Optional Drain cap Water bottle Probe assembly Air filter filter pump Baffle plate Mechanical valve with switch water level sensing electrodes water flow sensing electrodes ...

Page 5: ...tall bottle Open door and place fresh bottle in front of tray Clean fresh bottle with a soft cloth and warm soapy water then inse Remove entire plastic cap from top of bottle Insert probe into bottle Push down on probe until it is seated NOTICE When using a 5 gallon rectangular bottle slide into place as shown in llustration below 4 Plug cord into a properly grounded wall outlet Water will be pump...

Page 6: ...er without proper and direct supervision Note After setup hot water will be available in 15 20 minutes 1 Position bottle glass pitcher or cooking pot securely below hot water tap The left triangle below the hot water control indicates the location of the hot water tap The circular shapes in the drip plate help align the flow of water This unit dispenses water at a fast rate To avoid splashes hold ...

Page 7: ... use any other liquid in the dispenser other than known and microbiologically safe bottled water Warranty is void if used for any other liquids including coffee tea juices beer or wine For indoor use only Keep water dispenser in a dry place away from direct sunlight Do NOT use outdoors Install and use only on a hard flat and level surface Do NOT place dispenser into an enclosed space or cabinet Do...

Page 8: ...ot Water 1 2 3 4 5 6 7 Control Cold Water Hot Water Release LED Nightlights Drip Tray 8 9 10 Door Bottle Tray 11 Bottle Probe 12 13 14 3 Sensor Switch Filter Drain Plug Carry Handle 15 Power Cord 16 Pump 17 18 19 LCD display 1 2 3 4 12 13 14 15 8 5 6 7 9 10 11 16 17 18 19 Cooling ON OFF Heating ON OFF ...

Page 9: ...01A552 V04 The part of ozone telescopic off set to pump all water out Probe 10500010NX00 73 adjustable foot Hot water outlet silicone tube cold cook water outlet silicone tube Outlet fitting Brita filter Filter assembly 1 4 PE Tube 620mm 1 4 Connector 1 4 PE Tube 620mm Filter fitting 3 8 1 4 Connector 4X00028SXN 4X00030SXN 4X00106PXN 10600003XX 10600006XX 4X00005LXX PP001C075 4X00005LXX 3S000016XX...

Page 10: ...Specifications Model SWD 78EHL BD Description Bottom loader Black and stainless panels Features Cool Cook Tap Black Grey cooking pot Icon Cold Tap Black Blue Glass Icon Hot tap Toddle safety latch Black Red Latch Red Cup Icon LCD display Sensor Touch Ozone sanitizer Yes Switch for Cold Switch for Hot Yes water proof cover Yes water proof cover Carry Handle Yes Power rating Rated voltage and range ...

Page 11: ...ate ABS Black Logo Bubble sticker black background Tap Markings Red Blue Arrows on IMD Storage cabinet NA Drip Tray ABS Black Drip Tray Grill Wall strap kit for stability NA Bottle Receptacle NA Probe Telescopicoff set to pump all water out Float assebly Mechanical float valve with electrodes Water Reservoir Natural color PP Dimensions Width x Depth x Height mm 382 320 1031 5 Weight Net weight kg ...

Page 12: ...rvoir 2 Check silicone tube 1 60 DbA in 2 3 minutes is normal when water starts boiling 2 Voltage is too high 1 Use dbmeter check if it is too high 2 Check voltage is 220V or not 1 Voltage and frequency are unstable 2 Condenser or internal parts are not well installed result resonance 1 Check voltage and frequency 2 Hold the condenser by hand if the noise disappear then put rubber pad between cond...

Page 13: ... Change LED lights NOTE Make sure the static protection is equipped before doing service to protect control board 3 1 Unscrew 2 bolts then take off the control box cover 3 2 Pull off the LED wire connector by pressing the lock 3 3 Open the top cover by unscrewing 2 bolts 3 4 Remove the door hinge plate by unscrewing 3 bolts remove the door rope then remove the door 3 5 Unscrew the bolts for middle...

Page 14: ...d to be pressed down before pull out the wire connector 4 4 Unscrew 2 bolts then take out the transformer 4 5 Change a new one 4 6 Connect wires 4 7 Install the control box cover back 5 Change control boards Inside the control box NOTE Make sure the static protection is equipped before doing service to protect control board 5 1 Take off the control box cover by unscrewing 2 bolts 5 2 Pull of all w...

Page 15: ... unscrewing 2 bolts 7 2 Pull of the wires from the control board 7 3 Take off the door switch by screw driver 7 4 Change a new door switch and check if it works 7 5 Install the control box cover back 8 Change float switch 8 1 Take off the control box cover by unscrewing 2 bolts 8 2 Pull the wires off from the control board by pressing down the lock 8 3 Open the top cover by unscrewing 2 bolts on t...

Page 16: ...om the front to remove the hot tank assembly 10 6 Pull out 3 silicone tubes from the hot tank CAUTION Do not scratch the silicone tubes 10 7 Pull off the wires by pressing down the locks 10 8 Change a new hot tank assembly and connect the wires then plug back the silicone tubes with a little water as lubrication CAUTION Do not twist the silicone tubes 10 9 Make sure the the hot tank is switched of...

Page 17: ...ck connector 12 4 Change a new probe assembly and plug PE tubes on it 12 5 Pull out the extendable tube then press down the whole probe assembly into the water bottle and secure the nut by twisting clockwisely 12 6 Close the door and test if it works properly 13 Change water tap buttons 13 1 Remove 2 bolts on the back then take off the top cover by gentle hitting from the back with hand 13 2 Remov...

Page 18: ...ck 15 Change top cover 15 1 Remove 2 bolts on the back then take off the top cover by gentle hitting from the back with hand there are 2 hooks at the front 15 2 Change a new top cover align the tap buttons with the holes on the top cover before closing on 15 3 Press down the top cover in place then screw on 2 bolts from the back 16 Change top front panel assembly 16 1 Remove 2 bolts on the back th...

Page 19: ... for door rope 17 6 Close the door check the gaps and if it works properly 18 Change middle panel 18 1 Remove the door together with the hinge plate 18 2 Remove the middle panelv 18 3 Take off the middle panel 18 4 To install the new middle panel Screw on 4 bolts into the thread holes NOTE do not fasten these 4 bolts but leave a 3 4mm gap 18 5 Align the holes on the middle panel with the pins on t...

Page 20: ...20 6 Install the condenser with 6 bolts 21 Change hot tank thermostat 21 1 Open the condenser by unscrewing 6 bolts 21 2 Remove the door together with the hinge plate 21 3 Remove the middle panel 21 4 Unplug the wire connectors and silicone tubes from the hot tank 21 5 Take off the hot tank assembly by unscrewing out 3 bolts 21 6 Take off the thermostat cover on the side and on the bottom of the h...

Page 21: ... ozonator and change a new one 22 6 Connect the silicone tube and wire back 22 7 Install the top cover and control box cover 23 How to Connect disconnect the quick connector and tubes 23 1 Take out the fork 23 2 Press down the collet then pull the tube out 23 3 Cut a chamfer by pencil sharpener at the end of the PE tube before page 24 How to change parts ...

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