DIY Maintenance for your Window Condensation Control Module

HEG technician shaking the hands of a customerThis page is relevant to you IF all three of these points are TRUE:
  1. We have installed a Ducted Air Circulation System at your residence, and
  2. You have opted for a Window Condensation Control Module, and
  3. The ventilation intake for this module is via an eave inlet.

There are a number of ways that we access ventilation, with the main methods being via an eave, via a gable intake and via a roof cowl. This page relates to the most common sort, the eave intake. The system performance will diminish over time if the ventilation source is throttled. This can occur if the intake becomes blocked. These instructions illustrate how to unblock the eave intake. This will need to be done on an "as required" basis. Most customers can go for several months without needing to clean it, whilst some customers need to virtually do it weekly. The main factors that determine frequency are the amount of insects in your area, and the proximity of the intake to a light source (which attracts the insects in the first place).

Before you start...

  1. Turn the system (fan) off before you start cleaning so that the debris can fall away.
  2. Obtain a stiff, small brush. Often an old paint brush or even a toothbrush will do.
  3. Use a face mask as there is dust involved.
  4. You may need a ladder to access your eave inlet. If you can't access it in a safe manner, consider obtaining professional assistance.

Professional Assistance

Please contact HEG if you require professional maintenance assistance.

1. Locate the Eave Intake

The eave inlet is the ventilation intake for your system, allowing drier air to enter the liveable part of the house, thus offsetting humidity build-up. There are different styles of eave inlet that have been used over time, but it will appear similar to the inlet shown in the picture, below.

Typical eave inlet for the condensation control module

2. Remove the inlet face

The inlet face can be removed by twisting it in an anti-clockwise direction (leftie loosie!) until it comes away. The face is connected to the intake via a thread, similar to a bolt.

Eave inlet with face removedEave inlet face once it has been removed from the main intake

3. Brush away debris

As you can see from the image, below, there is an insect screen that is across the neck of the intake. This may become blocked over time by moths, mozzies and dust, thus blocking the intake of fresh air. To clear the debris, use a stiff paint brush to dislodge the material. Replace the face of the intake when finished. All done!

Yucky! Moths and mozzies commonly get stuck in the insect filter

HEG Energy - Home Efficiency GroupHome Efficiency Group
Local Call Fee: 1300 96 80 60
285 Invermay Road, Invermay TAS 7248 
1/65 Albert Road, Moonah TAS 7009