JBC Electrical LLC

The Importance of Maintaining Your HVAC System:

Avoiding Common Pitfalls
Introduction: Hello everyone, and welcome to today's segment on residential HVAC systems. An efficiently running HVAC system is vital for maintaining comfort in our homes, especially during extreme weather conditions. Today, we're diving into some common issues that can plague your system - namely, bad or out-of-tolerance capacitors, worn-out contactor contacts, high amp draws on motors, and incorrect refrigerant levels. Let's explore why neglecting these issues can lead to bigger problems and higher costs down the line.

Section 1: Capacitors – The balance of Your HVAC

Capacitors play a crucial role in your HVAC system, helping start up the compressor and motors while keeping them running efficiently. When capacitors go bad or fall out of their intended tolerance:
Increased Electrical Stress: Out-of-tolerance capacitors can cause your system to consume more electricity, leading to higher energy bills and overworked components
System Failure: A bad capacitor may lead to failure of the compressor or motors, resulting in no cooling and potentially costly repairs.

Section 2: Contactor Contacts – Your System's On/Off Switch

Contactor contacts are essentially the on/off switch for your HVAC's compressor and motors.
Worn contacts:
Reduce Efficiency: Poor contacts can cause intermittent operation or even prevent the system from starting, leaving you without cooling on a hot day. Poor contacts also cause high amp drawls.
Can Lead to Component Damage: Over time, poor contacts may result in damage to the compressor and motors due to the erratic supply of electricity. High amp drawls can also cause damage to those motors and compressor motor as well.

Section 3: High Amp Draws on Motors – A Sign of Stress

Motors that draw high amps are often struggling, indicating underlying issues such as:
Overheating: High amp draws can cause motors to overheat, and burn windings shortening their lifespan.
Electrical Component Strain: This condition can put extra stress on electrical components like capacitors and contactors, leading to a cascade of failures.

Section 4: Incorrect Refrigerant Levels – The Lifeline of Cooling

Refrigerant levels must be precise. Too much or too little refrigerant:
Decreases Efficiency: Improper levels can significantly reduce the efficiency of your cooling system, increasing operating costs.
Can Cause Damage: Incorrect refrigerant levels can lead to compressor damage, which is often a costly repair.

Conclusion: Ignoring these issues in your HVAC system is like ignoring warning signs on your car's dashboard. Just as you wouldn't drive a car with an overheating engine, you shouldn't operate an HVAC system with these problems. On average an HVAC system starts and stops about 8,000 times just in a cooling season in Phoenix and your car on average only 16-1700 times in an entire year. Regular maintenance checks can identify these issues early on, preventing major repairs, extending the life of your system, and ensuring it runs efficiently. Always consult with a professional HVAC technician to inspect and repair any issues to keep your system in top condition.

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