Aquatec DC 500, Руководство пользователя, Страница: 20 / 25

20
Troubleshooting
Pressure and/or production falls.
low voltage
coarse filter, prefilter or intake clogged
membrane defect or dirty. check voltage at engine connections
clean or replace filter
clean or replace membrane
Loud banging noise of the motor pump unit
belt is too loose.
tighten belt
Noisy operation, vibrations, unsteady pressure.
valve defective or soiled
air pockets in supply pipes, membranes
inlet insufficient open valve caps and check valves, replace valves
run feed pump und HP pump without pressure until there
is no air left in system.
intake or filters clogged.
Motor does not turn
/ Motor stops
no voltage, fuse defective
motor protection is activated due to overload
motor protection is activated, but no overload check voltage, replace fuse
reduce pressure, open pressure-valve
adjust or replace motor protection switch
Oil eakage between pump head and crankcase
crankcase gasket rings defective replace gasket rings
Water leakage between pump head and crankcase
plunger(s) defective / o-rings plunger defective
HP / LP seals defective replace plunger(s)/ replace o-rings
replace seals
Water in pump case
high humidity (mostly), wrong oil. reduce oil change interval, use right oil
Please note:
Problems with watermakers are mostly caused by air in the system or clogged intake
and filters.
The drinking water production changes according to the salinity, the temperature of the seawater and
the age of the R.O. membrane. The data regarding the fresh water production apply to a salinity of 35
grams/liter (Atlantic) at a temperature of 25ºCelsius (77°Fahrenheit) at the new membrane.
A discrepancy up to 10% +/- is within the usual range. At current consumption, discrepancies of up to
5% +, especially in the first 50 hours of operation, are usual.