83003702.K Operating Instruction
Type KPC 108-L-U/S
page 29
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11
TROUBLE SHOOTING
KIND OF TROUBLE
CAUSE
ELIMINATION
malfunction of
plant/system
1.
power failure
2.
feeler of temperatur controller
defective
3.
feeler malfunction
-
check mains connection
-
check feeler:
clamp feeler and measure the resistance
- check thermostat:
bridge controller
the thermostat relay
should shut and the compressor should
start
-
check feeler:
clamp feeler and measure the resistance
- replace feeler ( sensor ) is defect.
malfunction of pump
1.
main switch not switched on
2.
control switch on 'OFF'
3.
main fuse defective
4.
fuse for control current defective
5.
pump motor defective
6.
flow controller responded
7.
shortage of water
8.
lamp “overheating water reset” lights
-
switch on main switch
-
switch control switch to 'AUTO'
-
replace fuse
-
replace fuse
-
replace motor
-
check water quantity
-
check system pressure, clean strainer
-
check the refrigerant circuit – see capture
“Water pump”
still malfunction of
pump
1.
overload trip of pump protection
interrupted control circuit
-
main switch to '0', push in overload trip
pump makes
gurgling noise
1.
circuit is not completely vented
-
vent and fill up with water
compressor stops
1.
Klixon tripped
2.
Klixon defective
-
wait until compressor cooled down;
perhaps clean condenser or provide fresh
air supply
-
replace Klixon
malfunction of
refrigerating machine
1.
control thermostat stopped machine,
return temperature too cold
-
to check function, level down adjustments,
wait until return temperature rised
