Fault/Cause/Remedy - Wolf SED-750/250 Instructions De Montage

Fault
Leakage at floor-standing hot water tank Flange leaking
Temperature difference to small at solar
heat exchanger
None / too little discharge function of the
tank
Undesired cooling down of tank only in
the lower tank area
Undesired cooling down of tank in the
entire tank area
16

Fault/Cause/Remedy

Cause
Pipe connections leaking
Incorrect settings on solar control
Flow (solar-side) too low
Reversing valve defect/connected incor-
rectly
Control of the solar return temperature
rise poorly adjusted/defect
Flow (heating-side) too low
Gravity circulation in the solar circuit
Insulation is open / is not in contact
with the tank
Gravity circulation in the heater circui
Remedy
Re-tighten screws
Replace seal
Re-seal
Change parameters (in particular
switch-off temperature difference)
Bleed solar circuit Repair blockages Change
pump power
Restore
Change parameters (in particular switch-on
temperature difference)
Bleed heater circuit, repair blockage,
increase pump power
Close / install gravity brake
Close insulation
Install / close gravity brake
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