Kemper 686 02 005, Installation And Operating Instructions Manual

Page: 42 / 50

Manual KHS Mini System Control MASTER 39
9. Description of malfunctions and malfunction repair
Table 9.1: Error description / Error handling
Error description / Error handling
Status
LED
on Slave
Error Potential cause Measures Impact
General error
Pe
rma
ne
nt
fla
shin
g
red
Backwater in drain Drain is clogged or cannot accept the
flushing volume.
Check the drain channel,
channel acceptance
capacity.
Error message!
Defective control will be
completely blocked
Backwater in drain Float switch on the drain has a cable
break
Replace cable / switch Error message!
Defective control will be
completely blocked
Leak on sensor Pipe failure, moisture on the sensor Check the local area and
remove the moisture
The safety valve is blocking
the system.
Fla
she
s
red
(5
pe
r sec.)
Temperature flushing
switched off during
runtime
Medium did not reach the switch-off
temperature in the set time
Check the installation
setup and the maximum
flushing time.
Error message!
Temperature operating mode
is blocked in the defective
control.
Volume flushing
switched off during
runtime
Set volume not reached Check the installation
setup and the maximum
flushing time.
Error message!
Volume operating mode is
blocked in the defective
control.
"Flow with closed valve
detected"
Flow is detected by the vortex flow
sensor with the valve closed
Check the functioning of
the flush valve
Error message! The involved
valve is blocked.
"No flow detected
although valve is open"
No flow is detected during a flushing
process.
Check the flushing line and
the flushing valve
Error message! The involved
valve is blocked.
Fas
he
s red
(1
pe
r sec.
)
PT1000 value too high Sensor defective / No sensor available Replace sensor / Check
inputs on the MASTER
Error message!
Temperature flushing
operating mode is blocked in
the defective control.
PT1000 value too low Sensor defective / No sensor available Replace sensor / Check
inputs on the MASTER
Error message!
Temperature flushing
operating mode is blocked in
the defective control.
O
nly
Ma
st
er
fla
she
s red
(1
pe
r sec.
)
Real-time clock data
inconsistent
Data in the clock are not consistent Check the time & date and
adjust if necessary. Check
battery/replace if
applicable
All time-based services are
running on false time/date.