MCX 3..7 SMARTRONIC
®
26
The following table will help you to determine and rectify the reasons for possible problems.
Fault
Cause
Action
No water flows
Water supply is turned off
Open the main water valve and the shut-off
valve
Water flows
more slowly than
expected
The jet regulator is not fitted Fit the special CLAGE jet regulator
Water pressure is not suf-
ficient
Check the water flow pressure and then the
water flow adjustment
Dirt in the pipes
Remove any dirt from the filter, valves and taps
/
check the technical data
The heater switches
itself on and off
Water pressure is varying,
flow rate is too low
Remove any dirt / increase the flow water pres-
sure, close other taps, open the shut-off valve
further
Water remains cold
Water pressure is not suf-
ficient
Adjust the water flow, open the shut-off valve,
fit the special CLAGE jet regulator, check water
pressure
Dirt
Remove dirt from the inlet and outlet
Hot water tempera-
ture varies
Supply voltage varies
Check the supply voltage
Water connections mixed up
Check installation
Hot water tempe-
rature too low and
one LED flashes
slowly
Flow rate is too high or inlet
temperature is too low
Adjust the flow either at the tap, the valve
or the flow adjustment screw (“Adjusting the
water flow”, 21).
One LED flashes
rapidly and water
remains cold
Defective temperature sen-
sor
Replace temperature sensor (authorized techni-
cian)
Defective heating element
Replace heating element (authorized techni-
cian)
All LEDs flash rap-
idly and water gets
warm
Defective control panel
cable
Reposition control panel connector (authorized
technician)
Replace control panel (authorized technician)
All LEDs flash
rapidly and water
remains cold
Defective power unit
Call customer service
18. Troubleshooting and Service
