Maintaining the Boiler 63
6. Loosen the three screws holding the front panel and remove
the front panel.
Note
When removing the front panel, label all wires and
make sure all wires are disconnected.
7. Use a Phillips screwdriver to remove the two screws where
gas inlet pipe is attached to the fan motor assembly. Loosen
the hex nut located above the gas valve and remove the gas
pipe.
Remove
2 screws
here
Loosen
the hex
nut here
1. Press the Power button (
) on the front panel to turn off
the boiler.
2. Disconnect the power supply to the boiler.
3. Turn off both gas and water supply to the boiler.
Note
Wait at least 30 minutes for the heat exchanger to
cool down.
4. Unfasten the 2 latches (at the top) and remove 2 screws (at
the bottom) to remove the front cover to gain access to the
internal components.
5. Once the front cover is removed, place it in a safe location to
prevent accidental damage.
Summary of Contents for NCB300-28K
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