How to perform a burner "Master Reset" on DYNAJET th and mdh models

If a DYNAJET th or mdh machine shows a fault indication on the control panel and the burner does not start, the Master Reset can restore normal operation. The crossed-out flame symbol indicates that the burner monitoring has stored an error message for safety reasons. In that case, a simple restart may not be enough.

On DYNAJET th and mdh models, the reset is straightforward. The white reset button on the circuit board is used for the basic reset, while the burner monitoring board may require the Master Reset procedure. For professional operators, this matters because downtime on a high-pressure water jetting system can interrupt work, delay schedules and reduce productivity.

To use the procedure correctly, the burner must be activated, which means the burner switch has to be set to On. Then press the grey reset button on the circuit board and switch the machine on while keeping the button pressed. Once the reset is accepted, the machine can be used again as usual. Following the sequence carefully helps ensure that the burner control is reset in the intended way and that the machine is ready for further work.

This information is especially useful for operators who work with DYNAJET high-pressure water jetting systems in daily service, industrial maintenance or cleaning applications. It gives a quick and practical way to respond to a burner fault without unnecessary troubleshooting. If the error message returns, the machine should be checked further before continued use.