3043756_1205
16
Fault
Cause
Remedy
Leakage at floor-standing
Flange leaking
Re-tighten screws.
hot water tank
Replace seal.
Pipe connections leaking
Re-seal
Heating-up time too long
Hot water temperature too low
Increase temperature (adjust
standing hot water tank,not at
(measure at the supply of floor-
the boiler)
controller)
Heating water amount too small
Larger pump
(causes large spreading,
Observe back pressure of
i.e. return temperature too low)
parallel heater circuit
Heating coil does not bleed
Bleed repeatedly with
switched-off pump
Calcification of heating surface
Decalcify heating surface
Industrial water temperature
Thermostat switches off too earlyReset thermostat
too low
Return temperature too low
Larger charging pump
(e.g. excessive spreading)
Fault-Cause-Remedy
