Buderus · Logamax Plus GB062 Boiler
This status indicates that the boiler's gradient control has detected a rapid increase in the flow water temperature, suggesting that the heating circuit might be blocked. The heating circuit will be temporarily blocked for 2 minutes as a safety measure.
Click steps to track your progress.
Check that the main maintenance valves (flow and return) for the heating circuit are fully open. If closed, open them.
Wait for 2 minutes to see if the boiler clears the WAIT status and resumes operation after the gradient control period ends.
An installer should check the main (WB6) and plate heat exchangers for any blockages or damage. If found, remove blockages or replace the affected parts.
If the problem persists, an installer should check the heating pump for blockages or replace it, as well as checking the electronic board (PCB) for defects.