Renfert Easyclean 1850-0000, Operating Instructions Manual

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14. Trouble shooting
Fault Possible cause Remedy
Casing damaged • damage by third party, transport
damage
• return unit to supplier or manufacturer
Mains cable damaged • damage by third party, transport
damage
• obtain original spare mains cable from manufacturer
or supplier
No operating functions;
all LEDs dark
• mains cable not plugged in
• socket dead
• mains cable damaged/interrupted
• fault of electronics
• plug in mains cable
• check socket/fuse
• replace mains cable
• return unit to supplier or manufacturer
No ultrasonic function;
LED ultrasound dark
• turning knob for ultrasonic opera-
tion in „0“ position
• unit is switched off
• key ►■ (ultrasound) not pressed
• fault of electronics
• switch on the turning knob for ultrasonic operation
• switch on the unit at key on/off
• press key ►■
• return unit to supplier or manufacturer
No ultrasonic operation;
LEDs of LED cleaning
period blink alternately
("running light") = fault
indication ultrasound
• adverse filling level
• fault of electronics
• change filling level, switch unit and off and on
• switch unit off and on
if fault is indicated again: return unit to supplier or
manufacturer
Unsatisfactory cleaning
results
• no or unsuitable cleaning medium
used
• cleaning temperature not sufficient
• cleaning period too short
• use suitable cleaning medium
• heat up cleaning liquid
• repeat cleaning interval
Unit does not heat up;
LED temperature dark
• turning knob temperature in „0“
position
• unit is switched off
• fault of electronics
• switch on turning knob temperature
• switch on unit with key on/off
• return unit to supplier or manufacturer
No heating function;
LEDs of LED tempera-
ture blink alternately
("running light") = fault
indication heating
• fault of electronics • switch unit off and on
if fault is indicated again: return unit to supplier or
manufacturer
Unsatisfactory heating-
up period
• loss of heating energy
• no mixing of cleaning liquid
• use cover (optional accessory equipment)
• e.g. switch on ultrasound (see section 7.3)
Unit produces boiling
noise during heating-up
• no mixing of cleaning liquid • e.g. switch on ultrasound (see section 7.3)
Set temperature is ex-
ceeded
• temperature sensor does not
measure the average temperature
(no revolution)
• set temperature too low,
• ultrasonic energy heats up the
liquid more than required (physical
process)
• mix liquid manually or by means of ultrasound
• for low set temperatures do not switch on heating
• switch on ultrasound for short periods only
No operational func-
tions;
LEDs of LED ultrasound
and LED temperature
blink alternately ("run-
ning light") = fault
indication programme
control
• fault of electronics • switch unit off and on
if fault is again indicated: return unit to supplier or
manufacturer
Subject to modification.