Tap supplies no hot water
Cause Remedy
Hose(s) kinked. Inspect the hose(s) and straighten the kinked hose(s).
Boiler not functioning. See table “The water from the tap is not boiling”
Hot water appliance not functioning.
(if hot water is not being used from
the M-Box)
Consult the manual of your hot water appliance.
The boiler causes a short-circuit
Cause Remedy
There is a short-circuit in the electric
wiring or the heater element of the
boiler.
Remove the plug of the boiler from the wall plug socket.
Contact Franke.
The boiler causes a short-circuit.
No expansion water from the M-Box
Cause Remedy
No water in the boiler. Fill the boiler with water.
The boiler is OFF (wait mode) Switch the boiler ON.
The boiler has a fault. Reset the boiler.
The boiler is defective Contact Franke.
Pressure relief valve in the M-Box is
defective.
Remove the plug of the M-Box and the boiler from the wall plug socket.
Shut off the water supply. Contact Franke.