Plenum Chamber Water Drain, Checking

Procedure 

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-- Remove the plenum chamber cover -A-. Refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .

-- Check the plenum chamber -A- and water drains -B- for debris.

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-- Check the water drains -B- and their valves -C- are not obstructed.

-- Check the plenum chamber cover for damage and then for correct installation.