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P R E M I U M S E R V I C E
Service Manual
Water Dispenser
Model : PWC200T
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IMPORTANT SAFETY NOTICE
The information in this service guide is intended for use by individuals
possessing adequate backgrounds of electrical ,electronic and mechanical
experience .Any attempt to repair a major appliance may result in personal
injury and property damage .The manufacture or seller cannot be
responsible for the interpretation of this information ,nor can it assume any
liability in connection with its use.
WARNING
To avoid personal injury ,disconnect power before servicing this
product .If electrical power is required for diagnosis or test
purpose ,disconnect the power immediately after performing the necessary
checks .
RECAPITULATING
This machine is one of water dispenser series. With adoption of
distinctive thermal isolation technology, it can minimize thermal exchange
between hot &cold water. It satisfy the need of cooking tea &coffee and
making cool drink. Its suitable for the use at home and in public.
The machine is suitable for bottle of 3 or 5 gallons .Don’t use unhealthy hard
water .And it should work under environment of temperature from 10℃～
38℃，relative humidity not higher than 90%.
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PARTS LIST AND EXPLODE VIEW
E X P L O D E D V I E W
M o d e l : P W C 2 0 0 T
CIRCUIT DIAGRAM
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FUNCTION
Heating System:
Theory : The stainless steel heater is directly touched with the water in the
hot tank ,and let the water hot .
Heating Diagram:
H
ot Water Tank:
Power : 420W
The Water Tem
Hot Water Tank Material : SUS30
Hot Water Tank Capacity : 5.0L/hou
Temperature Control : Double Bimetal
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peratue : ≥90℃
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r
lic Thermostat (Chinaware)
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ooling System:
C
Theory : The compresso
vapour ,and let the water and refrigerator cool .
r changes the refrigerant between liquid and
Parts View:
ystem Data:
S
Power : Power : 75W~
The Water Temperatue : ≤1
Cold Water Tank Material : SUS3
Cold Water Tank Capacity : 2.0L/hou
5
130W
0℃
04
r
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TROUBLE SHOOTING
NO. PROBLEM POSSIBLE CAUSES ELIMINATION
No h
ot water
1
Water not hot enough
2
The machine working
in condition but heating
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light of f
No c o l d w a t e r
(compressor cooling)
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The Plug th power off e power plug closely
The heating switch off Turn on the heating switch
Connection terminal loose Fix the connection terminal
Heating thermostat failure replace the thermostat
Te mperature control I failure Replace temp control
The heater short circuit or b Replace heater or hot ta
Use water enough in a short time use it Wa it for a moment and
Connection terminal failure Maintance or replance it
Te mperature control II failure Replance it.
PCB connection loose Fisup connection
LED strike down Replace it
PCB burn out Replace it
Cold switch invalidation e it Fix or replac
PTC mangled Replace PTC.
Thermostat I invalidation Adjust or replace it
Cooling system block
Refrigerant leakage
urn out nk
Repair it by ma
intain center
Water not cold enough
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Cooling time longer
than normal
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No water ru
from taps
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Hot or cold water is
Shortage
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nning out
Compressor badness
Cold water use much ait for a moment and use W
Te mperature higher than normal urnT off the machine and cooling it
Thermostat invalidation Adjust thermostat
There is a lack of refrigerant ref Add rigerant
Condenser surface gather dust Cleat out dust
Refrigerant leakage or loss Add refrigerant or repair it
or replace it Compressor failure Fix compressor
empty bottle replace it with another one.
Pressure of bottle inner lower than
outside
Ice block the pipe Turn off the compressor for a while
Water tap failure Replace it
There is air or gas in the bottle Push tap and let air out
The water tube fold Reinstall or
The water tube fold Reinstall or adjust it
Ice or others block the pipe Clear away the block
replace it with another one.
adjust it
Wate tap aging Replace water tap
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NO. PROBLEM POSSIBLE CAUSES ELIMINATION
Wat ser
er dispen
leakage
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Water dispenser is
noisy
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Wat Replaceer tap leakage water tap
Supporter leakage Replace it
The bottle leakage Replace it
Water tube aging and leakage Replace it
Check way leakage Replace it
Hot tank leakage Replace it
Evaporator comes out at preservation foam
Seal the he
condensation
Leakage from purify bottle Replace purify bottle
Heater tank produce scale Clean it with detergent
Ozonizer aging Replace it
Scrub with other part while
Adjust place each other
rking. compressor is wo
Throttle place utter noise Replace it by expert
Cooling system goes on
working
Environment emperature higher Cooling or stop the machine for a
than normal while.
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Refrigerant leakage Repair it by manufacture center
validation or replace it Thermostat in Adjust
Heating system goes on
12
working
Compressor starts
frequent
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cold water
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Hot and
mixed
invalidation
Evaporator frost Seal the heat preservation foam
PTC invalidation Replace it
Vacuumize shorta Repair it by expert
ge
Heat gas flow into cooling tank liminate it Check and e
Te mperature control invalidation mtrol Replace temperature co
Check valve failure Replace it
Foul od Hot water tank is empty or no
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dispenser
or in air around
completely full.
controller Te mperature
Replace it
t n until
Press the hot dispenser butto
water flows
to remove air from the
16
Water has
odor
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poor taste or
hot tank.
Separator needs cleaning. See cleaning the separator
Unit needs to be sanitized. ning and sanitizing the
See clea
water tanks.
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CRITI ERVCAL PARTS S ICING
Ⅰ
Hot Tank Test And Operation:
1 ． Disconnect the condenser
and then disassemble the
wire who connect the hot
tank with power.
． Test the thermostat with the
2
multimeter and estimate the
possible cause. If the
thermostat works, the
multimeter will appear data or
beep, Contrarily then contrary.
3
． Use the multimeter to check the
heater. If the heater works, the
multimeter will appear data or moo,
Contrarily then contrary.
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Ⅱ Compressor T est And Operation:
1.
During working situation, the compressor
is proved normal by its quiver.
2
. Disconnect the PTC (Starter) cover and
replace it.
3
. Check the compressor through the terminal.
Normal : The resistance amount data is not m
as diagram.
ore than 5 ohm. It is shown
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