CARRIER PERFORMANCE 16 Ice On Coils Blowing Warm
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
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86%
CONF
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Thermal Expansion Valve (TXV)
The TXV is responsible for precisely metering refrigerant flow into the evaporator coil. If the internal sensing bulb loses its charge or the needle valve becomes stuck in a restricted position, it causes an excessive pressure drop in the evaporator. According to the Ideal Gas Law, this pressure drop leads to a corresponding temperature drop below the freezing point, causing immediate icing and blocking heat transfer.
SKU: KH45LE120
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VIEW ON AMAZON
#CommissionsEarned
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8%
CONF
|
High-Efficiency Pleated Air Filter
A heavily loaded or high-MERV filter creates excessive static pressure, reducing the CFM (Cubic Feet per Minute) of air passing over the evaporator. Without sufficient warm air to facilitate the phase change of the refrigerant from liquid to gas, the coil remains too cold. This causes the dew point of the indoor air to reach the freezing mark on the coil surface, resulting in a runaway icing effect.
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VIEW ON AMAZON
#CommissionsEarned
|
|
6%
CONF
|
Blower Motor Run Capacitor
If the blower motor capacitor fails, the fan may spin at a reduced RPM or fail to start entirely. The lack of forced convection across the evaporator coil prevents heat exchange with the refrigerant. This thermal imbalance causes the refrigerant temperature to stay below freezing, leading to a solid block of ice that eventually restricts all airflow, resulting in warm air being felt at the registers due to the lack of heat removal.
|
VIEW ON AMAZON
#CommissionsEarned
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DIY Repair Guide
Watch exactly how to replace the Thermal Expansion Valve (TXV).
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.