KLH SC 2 User Manual

KLH Kältetechnik GmbH
u n i v e r s a l c h i l l e r s
ENGLISH
- 22 /31- 14.12.2011 / 01.00
11. Malfunctions / Trouble shooting
Notice unconditional the safety information and regulation (see
also chapter 1.3)
The basis for trouble shooting activities are the circuit diagram and the
flow diagram
.
11 Faults / Trouble shooting
11.1 Malfunctions at the temperature controller
F1H = Sensor for the reference input: resistance too high Sensor broken
F1L = Sensor for the reference input: resistance too low Short circuit at the sensor
EP = EEPROM error in the data store (to be repaired at the factory)
11.2 Displays
Signal lamp
Cause
Failure
Remedy
Signal lamp -fault
alarm- lights up-
Motor protection
switch has tripped
Compressor and pump
may have tripped by
excess current
Switch on motor protection switch after repair
Safety series has
tripped
High pressure
Cooling water
temperature too high or
flow too low
Check cooling water flow,
Check cooling water controller
Water temperature too
high
Drain off water and replace by fresh water
Consumer input too high
Reduce consumer input, resp turn off
Condensert dirty
Clean condenser
Pressure switch defect
Replace pressure switch,
call for the customer service!
Every high-pressure fault must be reset at the pressure switch
manually.
Dry-run protection
Water evaporated,
resp. leakage Tank
empty,
dry-run protection
Replenish water, resp. repair leakage Fill water
into the tank up to – Max – mark
Pump fails to work
Motor protection switch
has tripped,
Overload of pump by
mechanical difficulties
Check pump, eventually replace, motor
protection switch in position – 1 –
Remote control not
switched on
Switch on remote control
Automatic cut-out not
switched on
Switch on automatic cut-out
Cooling device fails
to start
Potential free signal
missing (by customer
side)
Check signal connection and cable

KLH SC 2 Specifications

General

Brand	KLH
Model	SC 2
Category	Speakers
Language	English