921510-20 nl-en ma 2016
7
en
cleaning and maintenance
1. In case of accidents, cut off electricity when cleaning the machine;
2. Every time after use, clean the machine with a wet towel. Don’t use erosive detergent. Pay special atten-
tion when cleaning operation panel, since if water is let inside, electric parts will be damaged and there
will be short circuit.
3. Do not wash the machine directly with running water.
4. water must be drained out of the tank after it is cooled down.
electric schematic
switch
display
he
ati
ng
pi
pe
TDS
grounding
L
E
N
AC220-240V/50Hz
treat-
ment to
general Break-downs:
faults
causes
treatments
Turn on the power switch,
the display and switch are off.
1. No power in outlet;
2. The fuse is fused in the host
socket;
3. Poor contact in the power
cord;
1. replace the normal power
outlet;
2. Unplug the power cord to
replace fuse of 12 amps;
3. Tighten and replace the
power cord;
If red heating light does not go
off, the device temperature will
rise resulting in inability in tempe-
rature control.
water in tank has been below the
safety line or there is no water.
After the water is added to the
predetermined level, the de-
vice still fails, contact technical
personnel of after-sales service in
the division.
Temperature display shows “E1”.
Temperature sensor is open or in
a short circuit.
check whether the probe line is
in bad contact, failure, or in an
open state.
Summary of Contents for 921.510
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