Troubleshooting - Daewoo DWC-42R Service Manual

NO. PROBLEM
1 No hot water
2 Water not hot enough
T he machine working in
3 condition but heating light
o ff
No cold water
4
(compressor cooling)
5 Water not cold enough
Cooling time longer than
6
normal
No water running out from
7
taps
Hot or cold water is
8
Shortage
T ROUBLE SHOOTING
PROBLEM ANALYSIS
The power off
The heating switch off
Connection terminal loose
Heating thermostat failure
Temperature control I failure
The heater short circuit or open
circuit
Use water enough in a short
time
Connection terminal failure
Temperature control II failure
PCB connection loose
LED strike down
PCB burn out
Cold switch invalidation
PTC mangled
Thermostat I invalidation
Cooling system block
Refrigerant leakage
Compressor badness
Cold water use much
Temperature
normal
Thermostat invalidation
T here is a lack of refrigerant
C ondenser surface gather dust
Refrigerant leakage or loss
Compressor failure
empty bottle
Pressure of bottle inner lower
than outside
Ice block the pipe
Water tap failure
There is air or gas in the bottle
The wa ter tube fold
The water tube fold
Ice or others block the pipe
Wate tap aging
6
Plug the power plug tightly
Turn on the heating switch
Fix the connection terminal
replace the thermostat
Replace temp control
Replace hot water tank
Wait for a moment and use it
Maintance or replance it
Replance it.
Fisup connection
Replace it
Replace it
Fix or replace it
Replace PTC.
Adjust or replace it
Repair it by maintain center
Wait for a moment and use
higher than
Turn off the m
Adjust thermostat
Add refrig
Cleat out
Add refrigerant or repair it
Fix compressor or replace it
replace it with another one.
replace it with another
Turn off the compressor for a while
Replace it
Push tap and let air out
Reinstall or adjust it
Reinstall or adjust it
Clear away the blo
Replace water tap
SOLUTION
achine and cooling it
erant
dust
one.
ck