Lennox HP29 Owner's Manual

To reset the Lennox HP29, turn off the unit by switching off the circuit breaker. Wait for about 5 minutes before turning it back on. This allows the system to reset completely.
Check if the thermostat settings are correct and ensure that the heat pump is on. Inspect the air filters and ducts for any blockages and clean them if necessary. If the issue persists, contact a professional technician.
It is recommended to check the air filters every month and clean or replace them as needed, at least every 3 months, to maintain optimal performance and efficiency.
Annual maintenance should include inspecting and cleaning the coils, checking the refrigerant levels, lubricating moving parts, and testing the thermostat and electrical connections.
Ensure that your home is well-insulated, seal any air leaks, maintain regular filter changes, and schedule annual professional maintenance to keep the system running efficiently.
Unusual noises can be due to loose components, debris in the fan, or worn-out parts. Inspect the unit for visible issues or contact a technician for a thorough examination.
For optimal efficiency and comfort, set your thermostat between 68°F and 72°F during the winter months when you are home, and lower it when you are away.
Signs of low refrigerant levels include the unit not cooling effectively, ice buildup on the coils, and higher than normal energy bills. A professional can check and refill the refrigerant.
The Lennox HP29 is designed to operate efficiently in cold weather, but its performance may decrease below certain temperatures. Consider using supplemental heating during extreme cold conditions.
Frequent cycling can indicate issues like an oversized system, thermostat problems, or airflow restrictions. Inspect the thermostat settings and air filters, and consult a technician if necessary.