High-Efficiency Furnaces
High-efficiency furnaces are modern residential heating systems designed to maximize energy use while providing consistent warmth throughout your home.
These systems achieve efficiency ratings of 90% or higher, often featuring condensing technology and primary/secondary heat exchangers to capture and reuse heat that would otherwise be lost. High-efficiency furnaces are equipped with advanced features such as variable-speed blowers and electronic ignition systems, reducing fuel and energy consumption.
Proper installation, regular maintenance, and timely repairs are essential for optimal performance and longevity.
Warrantability
Alberta New Home Warranty Standards:
- 1-Year Workmanship Warranty: High-efficiency furnaces are covered for up to one year for defects in installation and workmanship affecting functionality.
- 2-Year Distribution Warranty: applies to issues arising in the ductwork system, such as improper airflow caused by installation errors.
- Emergency heating failures during warranty coverage are typically addressed promptly under builder support agreements.
Builder’s Warranty:
- 1-Year Warranty: Builders generally provide coverage for installation-related issues, such as improper venting, incorrect thermostat connections, or insufficient duct sizing.
Manufacturer’s Warranty:
- Furnace manufacturers offer warranties ranging from 5 to 10 years for major components (e.g., heat exchangers, blowers, control boards) and 1 to 5 years for smaller parts like igniters or sensors. Some models include extended warranties for specific parts, so review your furnace’s warranty documentation for details.
Maintenance
Regular maintenance is critical to ensure efficiency and prolong the lifespan of your furnace:
Replace Filters
- Replace air filters every 1-3 months during the heating season and every 3-6 months during non-heating season to maintain airflow and indoor air quality.
Inspect Ducts
- Regularly inspect ducts for damage, leaks, or obstructions that could affect airflow and heating efficiency.
Clean Intake/Exhaust Vents
- Keep outdoor intake and exhaust vents clear of debris, snow, or ice to avoid airflow obstructions.
Check Thermostat
- Test your thermostat annually to ensure proper communication with the furnace.
Annual Tune-Up
- Schedule a professional maintenance service to clean components, inspect electrical connections, and test fuel efficiency.
Monitor Condensate Drain
- Clean the condensate drain pan and line to prevent clogs or leaks.
Common Issues, Warrantability, and Repair Solutions
1. Furnace Does Not Turn On
Causes:
- Faulty thermostat or wiring connection (Installation or Product Defect).
- Tripped breaker or blown fuse (Electrical Supply Issue).
- Malfunctioning electronic ignition system (Product Defect).
Warrantability:
- Builder’s Warranty (1 Year): Covered if the issue arises from improper installation connections or thermostat setup.
- Manufacturer’s Warranty (5-10 Years): Covered if caused by a defective ignition system or wiring within its warranty period.
Repair Solution:
- If within warranty: Confirm that all electrical breakers are switched on, and ensure the thermostat settings are properly configured, and the thermostat is powered on. If the issue continues, contact serviceQ to assess and address the concern.
- If outside warranty: Check thermostat and breaker settings, replace damaged ignition components, and test wiring connections. Call an HVAC company, such as Star Mechanical, to assess.
2. Insufficient Heating or Uneven Temperature
Causes:
- Incorrectly balanced airflow through out home (Usage issue)
- Dirty air filters causing reduced airflow (Maintenance Issue).
- Malfunctioning blower motor or heat exchanger (Product Defect).
Warrantability:
- Builder’s Warranty (1 Year): Covered if installed ductwork is improperly sized, hindering airflow or heating performance.
- Manufacturer’s Warranty (5-10 Years): Covered if heating issues are caused by defective heat exchangers, blowers, or thermostats.
Repair Solution:
- If within warranty period: Confirm that all electrical breakers are switched on and ensure the thermostat settings are properly configured and that the thermostat is powered on. If the issue persists, contact serviceQ for assessment of the problem and to perform ductwork repairs or provide education on heat balancing, depending on the specific concern.
- If outside warranty: Replace dirty filters, inspect ductwork for blockages, re-balance the airflow in the home, and test blower motor functionality. Call an HVAC company, such as Star Mechanical, to assess.
3. Furnace Makes Loud or Strange Noises
Causes:
- Loose or damaged components, such as blower belts (Installation Issue or Product Defect).
- Dirty burners causing inefficient combustion (Maintenance Issue).
- Airflow restrictions creating vibration or rattling noises (Ducting Issue).
Warrantability:
- Builder’s Warranty (1 Year): Covered if noises result from installation errors, such as loose fittings or improper ductwork.
- Manufacturer’s Warranty (5-10 Years): Covered if caused by defective blower motor or burner components.
Repair Solution:
- If within warranty period: Report noises to serviceQ for inspection and adjustment.
- If outside warranty: Clean burners, secure loose components, and address duct obstructions causing airflow noise. Call an HVAC company, such as Star Mechanical, to assess.
4. Water Leaks Around Furnace
Causes:
- Blocked or damaged condensate drain line (Maintenance Issue or Installation Error).
- Faulty heat exchanger causing excessive condensation (Product Defect).
- Frozen exhaust pipe in cold weather (Environmental/ Usage Issue).
Warrantability:
- Builder’s Warranty (1 Year): Covered if leaking is due to improper condensate line installation or venting errors.
- Manufacturer’s Warranty (5-10 Years): Covered if caused by faulty heat exchangers or defective condensate pumps.
Repair Solution:
- If within warranty period: Schedule an assessment to thoroughly evaluate any drainage or venting issues and perform the necessary repairs. serviceQ will carefully inspect the system, identify the root cause of the problem, and provide solutions to ensure the system operates at peak efficiency.
- If outside warranty: Clear the condensate line, ensure proper heat exchanger operation, and insulate exhaust pipes to prevent freezing. Call an HVAC company, such as Star Mechanical, to assess.
5. Furnace Short Cycles (Turns On and Off Rapidly)
Causes:
- Dirty air filters triggering flow disruptions (Maintenance Issue).
- Faulty flame sensor cutting off ignition prematurely (Product Defect).
Warrantability:
- Builder’s Warranty (1 Year): Covered if short cycling is caused by improper sizing or installation errors related to ductwork.
- Manufacturer’s Warranty (5-10 Years): Covered if caused by a defective flame sensor or control board components.
Repair Solution:
- If within warranty period: Request an assessment from serviceQ to evaluate and address any potential concerns or issues with your system. Their team will conduct a detailed inspection to ensure everything is functioning properly and perform necessary repairs or adjustments as needed.
- If outside warranty: Clean or replace air filters, test the flame sensor, and adjust thermostat settings. Call an HVAC company, such as Star Mechanical, to assess.
Disclaimer: The information provided on this website is for general guidance only and does not constitute legal, technical, or warranty advice and Qualico and its affiliated companies make no warranty whatsoever with respect to such information, including (but not limited to) for fitness for a particular purpose. Product warranties are governed by manufacturers’ terms and conditions, and proper maintenance is required to uphold functionality and coverage. Qualico and its affiliated companies are not liable for any injury (personal or otherwise), harm, personal damage, or property damage caused by (i) the use or misuse of, (ii) neglect related to, or (iii) unforeseen events related to, the information provided above. For specific warranty and maintenance details, please refer to the manufacturer’s documentation.
