Keep Your Home Safely Warm

Furnace Cleaning Checklist

A properly maintained furnace will operate more efficiently and have a longer life span, resulting in immediate as well as long-term money savings. Below is the Furnace Cleaning Checklist of maintenance tasks your HVAC professional should perform.

Furnace Cleaning Checklist:

  • Observe operation of unit, paying close attention to operation of fans. Loud fan operation can indicate premature bearing failure.
  • Clean flame sensor & flame igniter to remove carbon build up.
  • Inspect & clear all hoses to remove any blockages.
  • Check fan blades for dirt & buildup causing excessive unit vibration & noise.
  • Clean if needed.Inspect blower door to ensure there is a good seal, preventing surrounding non-temperature controlled air from being drawn inside unit.
  • Check safety operation of blower door safety switch.
  • Check duct connections at unit for air loss into surrounding environment.
  • Test operation of the unit's negative pressure safety switch.
  • Check return filter to ensure adequate airflow through return duct.
  • Clean burner rail assemble to remove carbon buildup, which can cause flame distribution to the heat exchanger.
  • Check all electrical entry points into the unit to ensure wire connectors exist & are secure.
  • Check wires & connections.
  • Replace any wiring showing signs of heat damage or with cracked insulation.
  • Check evaporator coil for blockage, which could prevent adequate airflow.
  • Check blower capacitor to ensure proper speed of fan motor.
  • Inspect all pipe fitting connections along gas line supply to ensure no gas leaks exist.
  • Check heat exchanger for cracks & corrosion.Check combustion safety switch for proper operation.
  • Check for proper sealing at all combustion vent connections.
  • Check all duct lines for areas of collapse or excessive turns, which cause airflow restrictions.

For more expert advice about furnace maintenance, or to schedule a preventive tune-up with one of our highly qualified HVAC professionals, please contact Coastal Refrigeration at 760-683-5683. We provide quality service and will beat competitive quotes in the San Diego County area.

We strive to help educate our customers about energy efficiency and home comfort topics with regards to Heating and Air Conditioning systems.


follow us on facebook
learn more on youtube
Review us on Yelp


- Air Conditioning Repair
- Heating Repair
- Furnace Repair
- Heat Pump Service
- HVAC Service & Installation


Coastal Refrigeration
Heating & Air Conditioning

3604 Barranca Ct.
Carlsbad, CA 92010

Tel. (760) 586-3758
Email. coastalrefrigeration2423(at)gmail.com
© 2023 Coastal Refrigeration Heating & Air Conditioning.
All Rights Reserved.