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Maintenance & Troubleshooting

Problem & Solutions

HRV or ERV not running

  • Verify polarization
  • Verify breaker in electrical box
  • Verify that dehumidistat or switch on HRV or ERV are activated to supply power to unit
  • Unplug HRV or ERV verify if controller is wired correctly to the connection box on the side of the unit
  • Verify low voltage box (Duotrol™) on the unit
 

Air is too dry

  • Increase humidity level on dehumidistat
  • Switch ventilation mode from continuous to intermittent
  • Install a Imperial humidifier
 

 

Air too humid

  • Reduce the humidity level on the controller
  • Verify if dryer is venting in basement
  • Verify if heating wood is stored in basement
  • Wait for outside temperature to change.
    Ex. Summer can be extremely humid
  • Verify balancing of the H/ERV
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When should I service HRV/ERV?

Heat Recovery Core Unit

Once a year or as needed, vacuum the four surfaces, let soak in warm water for 15 minutes, then spray rinse and let dry.

Filters

Four times a year or as needed, vacuum the filters. Replace filters once a year.

Click here to buy your filters now.

Inside the Unit

Once a year or as needed, clean the interior of the unit (walls and drain pan) with a mild and non-abrasive soap. It is recommended to use products that are environmentally friendly.

Energy Recovery Core Unit

Once a year or as needed, vacuum the four surfaces, let soak in warm water for 15 minutes, then spray rinse and let dry.

WARNING : ALWAYS UNPLUG HRV OR ERV DURING SERVICING 

   
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Home Ventilation
Heat Recovery Ventilation (HRV) or Energy Recovery Ventilation (ERV)?
How do HRV and ERV Systems work?
Types of installation
Finding a suitable installation area for an HRV or ERV
Indoor Air Quality
About Indoor Air Pollution
Learn about indoor types of pollutants
Determining your ventilation needs
Why is air filtration important?
Maintenance & Troubleshooting
Problems & Solutions
When should I service HRV/ERV?
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How much fresh air do I need: Determining your ventilation needs
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