HRV/ Air Exchanger Maintenance

🔄 Monthly Maintenance

1. Clean or Replace Filters

   • Most HRVs/air exchangers have washable or replaceable filters.

   • Check them monthly—vacuum or wash washable filters with warm soapy water.

   • Replace disposable filters according to manufacturer guidelines (often every 3–6 months).

2. Inspect Air Intake and Exhaust Vents

   • Outside vents can become blocked by leaves, snow, or debris.

   • Ensure they are clear to allow proper airflow.

🧼 Seasonal (Every 3–4 Months)

1. Clean the Core

   • If your HRV has a heat recovery core, gently remove and vacuum or rinse it, depending on the type (consult the manual).

   • Let it dry fully before reinstalling.

2. Clean the Ductwork Screens

   • Some systems have small mesh screens in the ductwork near the unit.

   • Vacuum or rinse them to remove dust or buildup.

🔧 Annual Maintenance

1. Check and Clean the Drain

   • HRVs often have a condensate drain line.

   • Make sure it's not clogged and clean it with a mild bleach solution if needed.

2. Inspect Fan and Motor

   • Turn off the power and check for dust or debris on fan blades.

   • If the motor or fan is dirty, gently vacuum or wipe clean.

3. Test the Balancing

   • Systems should be balanced (equal intake and exhaust airflow).

   • If you're unsure or suspect an issue, have a professional check it.

✅ General Tips

• Don’t shut it off: HRVs are meant to run continuously to maintain air quality. Use low-speed settings if you're away.

• Know your controls: Some HRVs have humidistats or seasonal settings—adjust for winter (prevent condensation) or summer (manage humidity) accordingly.

• Hire a pro every 2–3 years: A certified technician should inspect, clean, and rebalance the system periodically.