Solving Problems Yourself; Maintenance - Atag UKB150 Close in Mode D'emploi

solving problems yourself

Appliance does not work
Cause
– No voltage on the appliance because of a faulty
fuse in the meter cupboard.
Water does not heat up enough
– Temperature selection knob incorrectly set.
– Appliance encrusted with boiler scale.
There is a continual flow of water out of the inlet
combination
– Water pressure higher than 8 bar.
– Release valve in the inlet combination polluted.
No water emerges from the inlet combination during
heating
– Hot water tap not completely turned off.
– Non-return flap fouled.
Leaks
– Leaking connections on the boiler.
– Bolts of heating element not screwed tight.
– Leaking packing between heating element and
boiler.
– Leaking boiler.
No water from hot water tap
– Main tap turned off.
– Stopcock from inlet combination is closed.
– Inlet combination blocked.
– Pipes blocked.
Short circuit
– Short circuit in wiring.
– Short circuit in thermal safety device.
– Short circuit in heating element.
GB 12
Solution
– Replace fuse.
– Set temperature selection knob to correct setting.
– Remove boiler scale.
– Attach a reducing valve.
– Overhaul the inlet combination.
– Turn off the tap.
– Clean or renew the non-return flap.
– Replace packing and couplings.
– Screw bolts tight in crosswise sequence.
– Replace packing.
– Replace boiler.
– Turn on the main tap.
– Open the stopcock.
– Replace the inlet combination.
– Phone fitter.
– Repair wiring.
– Replace thermal safety device.
– Replace heating element.
solving problems yourself
(continuation)
Boiler does not heat up; no hot water
Cause
– No voltage in appliance.
– Wiring broken.
– No current in thermal safety device.
– Thermal safety device defective.
– Thermostat/control printed circuit not switched on.
– Thermostat/control printed circuit defective.
– Heating element defective.
Boiler forms steam
– Thermostat remains switched on.
– Heating element carries on functioning even though
thermostat/control printed circuit is switched off.
Protective earthing switch switches off
– Short circuit in the wiring with respect to the earth
connection of the appliance.
– Short circuit in thermal safety device with respect to
the earth connection of the appliance.
– Short circuit in heating element with respect to the
earth connection of the appliance.

maintenance

Solution
– Search for break and repair it.
– Search for break and repair it.
– Reset thermal safety device.
– Replace thermal safety device.
– Switch thermostat/control printed circuit on.
– Replace thermostat/control printed circuit.
– Replace heating element.
– Replace thermostat.
– Replace heating element.
– Repair wiring.
– Replace thermal safety device.
– Replace heating element.
Wipe the boiler with a damp cloth. Do not use any
strong or abrasive cleaners.
Scale may form in the boiler, depending on intensity
of use and the hardness of the water. Consult your
fitter. He can determine whether it is necessary to
remove the scale.
GB 13