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HomeRepair HelpTempstar Central A/C RepairTempstar Central air conditioner leaking at furnace or air handler Repair
Tempstar Central air conditioner leaking at furnace or air handler
When your Tempstar central air conditioner is leaking water at the furnace or air handler, the most likely cause is an evaporator coil that is not tilted correctly toward the drain outlet. If the coil is level or tilted away from the drain, condensation can miss the outlet and overflow. Next, inspect the evaporator drip pan (also called a drain pan). A cracked drain pan (also called a drip tray) can leak even when it is not overflowing and cause water under the furnace from AC operation. A clogged condensate drain tube or drain trap is less common, but it can back up water and create an AC condensate leak. Turn off power to the air handler and outdoor disconnect before inspecting or clearing the drain. Search your model number to find the exact Tempstar replacement drain pan or other part for your system. Adjusting an evaporator coil may require a licensed HVAC technician, and any repair inside the sealed refrigerant system requires EPA 608 certification. Do not open refrigerant lines or attempt line-voltage work beyond your training.
01 - Evaporator Coil Not Tilted Toward Drain
To help the condensate water to flow towards the drain outlet in the pan, most installers will tilt the evaportor coil slightly towards the drain hole. If the evaporator coil is not level, or tilted incorrectly, water will not flow to the drain hole and may overflow the pan.
Common
02 - Tempstar Central Air Conditioner Drip Tray
The evaporator is normally tilted slightly towards the drain hole to help the water to drain properly into the drip tray. If water is leaking from the drip tray but the tray is not overflowing, the drip tray is likely cracked and will need to be replaced.
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Common
03 - Tempstar Central Air Conditioner Drain Pan
The evaporator is normally tilted slightly towards the drain hole to help the water to drain properly into the drain pan. If water is leaking from the drain pan but the pan is not overflowing, the drain pan is likely cracked and will need to be replaced.
Common
04 - Clogged Drain Tube or Drain Trap
When the air conditioner is running, condensation forms on the evaporator coil and drips into a drain pan. From there the water is directed through a pipe with a trap to a floor drain or condensate pump. If the drain tube or trap gets clogged, the water will back up and overflow the drain pan. If water is leaking from the evaporator pan, it is likely the drain tube or trap is clogged and will need to be cleared to allow the water to flow normally. Be sure to shut off the power to the unit before attempting to remove the clog.
Less Common
Frequently Asked Questions
Why is my air conditioner leaking water at the furnace or air handler?
How do I fix an AC condensate leak caused by a clogged drain tube or trap?
How can I tell whether the AC drain pan or drip tray is cracked?
Can an improperly tilted evaporator coil cause my air conditioner to leak water?
How do I find the correct Tempstar drain pan or drip tray replacement part?
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