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| Suggested Pre-Season Preventive Maintenance Checklists. Our preventative maintenance contracts for residential and commercial installations help extend the life of your furnace and prevent major equipment breakdowns. The benefits are: Lower Utility Bills · Extended Equipment Life · Fewer repairs and breakdowns · Improved System Reliability · Increased Heating Capacity · Peace of Mind for you and your family. The process should include
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Outdoor Unit/Air Conditioner or Heat Pump
- Inspect unit and pad for proper level and adjust if needed
- Clean dirt, leaves and debris from inside cabinet
- Inspect base pan for restricted drain openings, remove obstructions as needed
- Inspect fan motor and fan blades for wear and damage, on older models lubricate as needed
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- Inspect coil and cabinet, clean as needed
- Inspect control box, associated controls / accessories, wiring and connections. Controls may include contactors, relays, circuit boards, capacitors, sump heat and other accessories. All control box and electrical parts should be checked for wear or damage.
- Inspect compressor and associated tubing for damage
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Indoor Unit/Furnace or Air Handler
- Inspect and clean blower assembly (includes blower housing, blower wheel and motor)
- On older models lubricate motor and inspect and replace fan belt if needed
- Check combustion blower housing for lint and debris and clean as necessary
- Inspect evaporator coil, drain pan and condensate drain lines. Clean as needed
- Inspect for gas leaks in gas furnaces
- Inspect burner assembly, clean and adjust as needed
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- Inspect ignition system and safety controls, clean and adjust as needed
- Inspect heat exchanger or heating elements
- Inspect flue system, Check for proper attachment to the furnace, any dislocated sections, and for signs of corrosion. Replace if needed.
- Inspect control box, associated controls, wiring and connections
- Clean or replace air filters
- Inspect conditioned air flow system (ductwork), check for leaks
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While System is Operating
- Monitor system starting characteristics and capabilities
- Listen for abnormal noise
- Search for source of unusual odors
- Monitor air conditioning and heat pump systems for correct refrigerant charge
- Measure outdoor dry bulb temperature
- Measure indoor dry and wet bulb temperature
- Measure high and low side system pressures
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- Monitor gas furnace for correct line and manifold gas pressure, make adjustments as needed
- Measure temperature rise and adjust airflow as needed
- Check vent system for proper operation
- Monitor system for correct line and load volts/amps
- Monitor system operation per manufacturer's specifications
- Provide system operation report and recommend repairs or replacement as necessary
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