Buderus Logamax plus GB142-24 Servicing Instructions page 37

Condensing gas boiler
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Diagnosis
7
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45
Check the tank-filling pump for soiling or for
a defective pump impeller wheel.
Is the
No
tank-filling pump soiled or is the pump
impeller wheel defective?
Yes
Replace or clean the tank filling
The external hot water tank is furred up.
pump.
Decalcify the tank.
8
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page 36
46
Check that the pump impeller wheel of the
tank filling pump is not blocked.
Is the
No
pump impeller wheel of the tank filling
pump blocked?
Yes
As described for the primary circulation
pump, the tank filling pump must be turned in
the direction of rotation of the pump using a
screwdriver.
47
8
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page 31
Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
37

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