Cleaning The Intake Air Filter - Navien CH-180 ASME User's Operation Manual

Cleaning the Intake Air Filter

If an intake air filter is blocked by dust or pollen, the combination boiler
will not operate and 'Error code 10' will be displayed. To prevent this from
happening, please clean the air intake filter every 3~4 months by following
the instructions below;
Locate the air filter just above the fan and under the intake air duct in the top left
1.
corner of the combination boiler.
2.
To access the filter, there is one Philips screw
that needs to be removed. The screw is located
in the circled areas on the diagram to the right.
Make note of which screw is taken. Once the
screws are removed, then pull it out towards the
front.
3. Remove the filter from the bottom of the intake air duct. Remove the Air Intake filter
from the plastic assembly and clean it with a toothbrush and water. Re-fit the screen
into the plastic assembly and fit the filter and frame onto the bottom of the intake air
duct.
Intake Air Filter
Intake Air Filter