Buderus Logamax GB062-24 KDE H V2 Service Manual page 23

2E
Heating system charge pressure is too low (<0.5 bar). Water pressure switch is triggered.
Step
5. Electronic board (PCB) is defect.
Logamax PLus GB062
Remedy
B Switch off the boiler.
B Cut the main voltage supply.
B Change the electronic board (PCB).
B Switch on the main voltage supply.
B Switch on the boiler.
B END
4
Fault finding
23