Common Electrical Furnace Repairs and Failure Rates

Introduction

Electrical furnaces, commonly used in homes across Yelm, Tumwater, Lacey, Olympia, Rainier, Roy, Spanaway, Centralia, and Chehalis, are known for their efficiency and reliability. However, like any appliance, certain parts are more prone to failure. By understanding which components are most likely to fail and their respective failure rates, homeowners can better prepare for maintenance and repairs.

1. Filters (Failure Rate: 70%)

Filters are crucial for maintaining air quality and protecting the furnace from dust and debris. However, they are also the most commonly replaced part due to clogging and wear, leading to reduced airflow and efficiency.

2. Sequencers (Failure Rate: 50%)

Sequencers, responsible for the proper operation of the heating elements, have a high failure rate. A malfunctioning sequencer can lead to elements heating improperly or not at all, resulting in inadequate heating.

3. Capacitors (Failure Rate: 40%)

Capacitors are essential for starting the blower motor and circulating air throughout your home. Due to their constant operation, they are susceptible to wear and have a relatively high failure rate.

4. Heating Elements (Failure Rate: 30%)

The heating elements are critical for generating heat. With continuous usage, these elements can burn out, particularly if the furnace is overworked or poorly maintained.

5. Thermostats (Failure Rate: 20%)

Thermostats control the furnace’s operation, but they can malfunction, leading to no heat, constant heat, or frequent cycling of the furnace.

6. Blower Motors (Failure Rate: 15%)

Blower motors, which circulate air, can fail due to wear and tear or lack of maintenance, leading to inadequate heating or overheating of the furnace.

7. Fuses and Circuit Breakers (Failure Rate: 10%)

Protecting the furnace’s electrical system, fuses and circuit breakers can trip or blow due to electrical issues within the furnace or home wiring.

8. Limit Switches, Transformers, Relays, and Contactors (Failure Rate: 5%)

These components, though less likely to fail, play vital roles in furnace safety and operation. Issues with them can lead to safety hazards or parts of the furnace not receiving power.

Conclusion

Regular maintenance and early detection of issues are key to the longevity and efficiency of your electrical furnace. If you’re experiencing problems with your furnace, or if it’s due for a check-up, contact Christianson’s Heating and Cooling at 253-293-5109. Our expert team provides top-quality HVAC services, ensuring your home remains warm and comfortable.