Karcher HDR 777-VA - Manual (Page 32)

HDR 777 English
5.959-106 A2006570 09/03
F. Troubleshooting
F3
Problem Possible cause Remedy By whom
Size of floc is inadequate Metered quantity of cleavage
powder or liquid cleavage
agent too low
Settling period after agitation
is too short
Agitation is not carried out
entirely correctly
Bypass pump (18)
underneath reaction tank is
not working
Increase metered quantities
Extend rest period
Determine cause and rectify accordingly
Check supply voltage and replace pump,
if necessary
Customer
Service
Customer
Service
Customer
Service
Customer
Service
Filter is full after only a few
splitting processes
Hose connecting reaction
tank to cascade filter is not
inserted into hole provided
in filter
Floc is too small and is
clogging up filter fleece
Rectify as necessary
Optimize flocculation process (splitting agent
metering and settling period)
Operator
Customer
Service
No pressure at high-
pressure cleaner Water deficiency, air is taken
in or high-pressure
appliance is connected
wrongly
Determine cause and rectify accordingly Customer
Service
Water escapes from one
of the overflows (B, F, H)
(see Chapter H.4)
Overflow hoses are not
connected Connect overflows Customer
Service
Stirrer motor and drainage
pumps (16, 17) don’t
switch off after draining the
reaction tank Stirrer shaft soiled or contact
problem Clean or replace Operator/
Customer
Service