Mar 16th 2026
Quick Answer Box What are the standard HVAC wiring color codes? While not always followed, the standard thermostat wiring color code is: Red (R) for 24V power, White (W) for heat, Yellow (Y) for cooli…
Published by HVACProSales Team
Mar 16th 2026
Quick Answer Box Why is my heat pump not working? Common heat pump problems include incorrect thermostat settings, dirty air filters, or a tripped breaker. For more complex issues, it could be a refri…
Published by HVACProSales Team
Mar 16th 2026
Quick Answer Box What is the best HVAC leak detector? The best HVAC leak detector for most technicians in 2026 is an infrared (IR) or heated diode model. Top-rated choices include the Fieldpiece DR82…
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Mar 16th 2026
Quick Answer Box What does an HVAC contactor do? An HVAC contactor is a heavy-duty electrical switch that controls the flow of high-voltage power to the outdoor unit's compressor and condenser fan mot…
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Mar 16th 2026
Quick Answer Box How much does it cost to replace a home AC compressor? As of early 2026, the average cost to replace a residential AC compressor ranges from $1,200 to $2,800. This price includes the…
Published by HVACProSales Team
Mar 16th 2026
Quick Answer Box What is a TXV in an HVAC system? A TXV, or Thermostatic Expansion Valve, is a metering device that controls the amount of liquid refrigerant entering the evaporator coil. It modulates…
Published by HVACProSales Team
Mar 16th 2026
Quick Answer Box How do you clean an HVAC flame sensor? To clean a flame sensor, first, turn off all power to the furnace. Remove the sensor, which is a thin metal rod located in the path of the burne…
Published by HVACProSales Team
Mar 16th 2026
Quick Answer Box Why is my AC compressor not starting? An AC compressor typically fails to start due to electrical issues. The most common culprits are a failed capacitor, a faulty contactor, or a tri…
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Mar 16th 2026
Quick Answer Box What do mini split error codes mean? Mini split error codes are diagnostic signals indicating a specific problem. Common codes include E1 (communication error between indoor and outdo…
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Mar 16th 2026
Quick Answer Box What size capacitor do I need for my HVAC unit? The correct HVAC capacitor size (measured in microfarads, MFD or µF) is determined by the compressor and fan motor specifications. A 2-…
Published by HVACProSales Team
