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2. Problems, causes and solutions
The problems which occur most frequently are
listed below. The various causes and suggested
courses of action are also provided.
PROBLEM
Cold water
Water is too hot
Insufficient flow rate
Continuous drainage from
the safety assembly
Green light switched off (PROfessional
TECH steatite range) - HPC-QUIE
Red light illuminated
(PROfessional TECH steatite range)
Rusty-coloured water
Water has an unpleasant odour
Water leakage
Water heater is warped
Noise caused by water heater
POSSIBLE CAUSES COURSE OF ACTION
CAUSES AND SOLUTIONS
Power cut (during heating phase)
Check the fuses and replace them if
necessary
Incorrect temperature adjustment
using thermostat
Adjust the thermostat (+ to the right;
- to the left)
Electronic thermostat overheating
safety activated (appliance
overheated)
See
Faulty heating elements
See
Unsuitable day-night programming
Where necessary, re-activate the
heating during the day
Thermostat malfunction
See
Limescale build-up inside appliance
and/or safety assembly
Remove build-up If necessary replace
the safety assembly
Water mains pressure
Check the mains pressure. If
necessary, install a pressure reducer.
Water mains flow rate Check the piping
Faulty baffle or insert
Contact the technical assistance centre
Removal of build-up from the safety
assembly
Replace the safety assembly
PROfessional TECH circuit
malfunctioning
See
Batteries exhausted or not charged
sufficiently
See
No mains power in the PROfessional
TECH circuit
Make sure the circuit is supplied with
power
Boiler empty Fill the boiler
Fast coupling connector not connected
Connect the fast coupling connector
Electrode circuit broken Check the circuit
Condition of cables from electronic
circuit connector
Check the cables
Electrode connector earthing Check the wiring
Appliance capacity insufficient for
requirements
Water heater corrosion
Empty the water heater and make
sure there is no internal corrosion. If
there is, replace the water heater
Bacteria development
Empty and clean the appliance and
replace the anode if using a model
with a magnesium anode
Base seal malfunction
Replace the seal (the seal must be
replaced every time the base is removed!)
55


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