Wacker Neuson HI750 Series, Operator'S Manual, Page: 112 / 144

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Maintenance HI750
9.13 Draining the Heat Exchanger and Resetting a Hard Lockout
Procedure Perform the procedure below to reset a burner control in hard (restricted) lockout
mode.
1. Allow the machine to cool for a minimum of ten minutes.
2. Place a container under the heat exchanger drain plug (a) , remove the drain
plug, and allow any unburned residual fuel to drain.
3. Inspect the burner nozzle and electrodes for proper setup and function. See
chapter Burner Setup in this manual .
4. Re-install the heat exchanger drain plug.
5. Press and hold the reset button (b) on the burner controller for 15 seconds.
WARNING
Fire, explosion, asphyxiation, and burn hazards. Before starting or resetting the
burner control from hard (restricted) lockout state, troubleshoot the heating system
for the root cause(s) of the lockout.
►
Refer to the burner manufacturer’s documentation for safe operating
procedures.
►
Make any necessary repairs or adjustment to ensure a safe start condition.
►
Ensure that the heat exchanger is free of oil and oil vapors before starting or
resetting the burner.
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