Servicing & Maintenance


Your heat recovery ventilation system is a lifetime investment providing you with a much healthier indoor air quality and ensuring you of a constant flow of fresh filtered air. However, regular servicing of your ventilation unit not only increases its life span, it also plays an important part in the effective day-to-day operation of the system.

Why do you need to regularly service your MVHR system?

  • Filters become blocked potentially allowing dust, pollen and diesel particulates and other pollutants to be introduced into the property
  • Remove the moisture, insects and ducts from the heat exchanger which may have been sucked into the system through the network of ducting
  • Dust from your property can collect on the fan impellers and in time can compromise their performance
  • Dust particles and bacteria gather on the back of extract valves located in “wet” areas such as bathrooms and kitchens
  • Supply air valves can become dirty as the filter degrades

What does a typical service involve?

  • Replacing the filters (additional filter charges are applicable)
  • Cleaning the air valves (where accessible)
  • Removing and cleaning the heat exchanger
  • Cleaning inside the unit
  • Checking and cleaning the fan impellers
  • Checking the system for satisfactory operation
  • Re-balancing the systems (optional – an additional charge may apply)
  • Visual inspection of external grilles subject to safe access (closer inspection is possible but an additional charge will apply)

Please be aware, failure to service your system regularly could affect the warranty on your unit. If you would like to service the system yourself please refer to the manufacturer’s instructions or contact ADM for advice. Filters are available to purchase separately from ADM, please ask for details.

Ventilation system spares

Download Servicing Request Form >