ZMI
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2030
0204
47-A
Q
CT0071
_#SE
N
_#AQ
U
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2.f
m
- 18 -
29. Troubleshooting
Fault
Cause
Remedy
Water does not flow
– Water supply interrupted
➯
Restore it
– Water volume regulator closed
➯
Open it
– Power supply interrupted
➯
Restore it
– Solenoid valve cartridge faulty
➯
Replace it
– Sensor faulty
➯
Replace it
– Dirty filters/non-return valves
➯
Clean and
replace if
necessary
Water flows conti-
nuously
– Solenoid valve cartridge faulty
➯
Replace it
– Flow rate regulator in shower head
blocked with scale
➯
Clean and
replace if
necessary
Flow time too short or
too long
– Incorrect flow time setting
➯
Set it
– Shower head blocked with scale
➯
Cleaning
Water too hot
– Scald protection set incorrectly
➯
Set it
– Thermal element faulty
➯
Replace it
Water too cold
– Scald protection set incorrectly
➯
Set it
– Hot water flow blocked
➯
Open it
– Dirty filters/non-return valves
➯
Clean and
replace if
necessary
– Hot water supply pressure too low
➯
Check it
– Hot water temperature too low
➯
Increase it
– Thermal element faulty
➯
Replace it
Water volume too low
– Water volume regulator not fully open
➯
Open it
– Shower head blocked with scale
➯
Clean it
– Dirty filters/non-return valves
➯
Clean and
replace if
necessary
– Supply pressure too low
➯
Check it
