14. Troubleshooting
Problem
No water supply to the device
Device does not regenerate
Device does not regenerate,
"Holiday Mode" LED is perma-
nently on (> 10 minutes) despite
tapping of water
Nothing is displayed
Incorrect time is displayed
Tank overflows
Insufficient function
Permanent regeneration
No brine intake
*CS = Customer Service
Permanent discharge into se-
werage tube
MU1H-1413GE23 R1106
GB
Cause
Shut-off device in the bypass is not
open or only partially open
Pipework of the drinking water supply
is calcified or blocked
Flow meter is defective
Incorrect settings at the control valve Check the control valve settings
Water meter is contaminated or defec-
tive
Internal electric cabling is defective
Wrong connection of connecting ho-
ses
No signal from flow meter
Power supply has been interrupted
Control head is defective
Power failure occurred
Internal pipework is contaminated or
leaking
Float valve is defective
Device not deaerated
Device is in "Bypass" position
Incorrect settings at the control valve Check the control valve settings
Storage tank is almost or completely
empty
Blending has been set incorrectly
Control valve is contaminated or de-
fective
Control head is defective
Incorrect settings at the control valve Check the control valve settings
Incorrect settings at the control valve Check the control valve settings
Drain tube is blocked
Min. operating pressure not available Min. operating pressure is 2.0 bar
Nozzles clogged
Back pressure in drain tube is too high Clean and, if necessary, replace se-
Control head is defective
17
Remedy
Open shut off valve fully
Clean or replace the pipework
Check and, if necessary, replace the
flow meter (CS*)
Clean and, if necessary, replace water
meter (CS*)
Check internal electric cabling (CS*)
Call Technical Customer Service
Connect the flexible connection lines
correctly
Check and, if necessary, replace the
flow meter (CS*)
Check power suppy (mains plug, fuse)
Call Technical Customer Service
Set the time
Check pipework (CS*)
Check float valve (CS*)
Deaerate device
Set device to "Service" position
Check salt level
Check the control valve settings
Check blending valve and mixing ratio
Clean control valve or, if necessary, re-
place control head (CS*)
Call Technical Customer Service
Clean and, if necessary, replace drain
tube
Replace nozzles (fitter, CS*)
werage tube
Call Technical Customer Service
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