RHEEM RA16 Ice On Coils Blowing Warm
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
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96%
CONF
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High-Efficiency Pleated Air Filter (20x20x1 or size-specific)
The most frequent cause of coil icing is restricted airflow due to particulate accumulation. When air cannot pass through the filter, the evaporator coil lacks the heat load required to boil the refrigerant, causing the surface temperature to drop below 32°F and moisture to freeze. The resulting ice block then insulates the coil, preventing any cooling from reaching the supply registers.
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VIEW ON AMAZON
#CommissionsEarned
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2%
CONF
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Thermal Expansion Valve (TXV)
The TXV regulates the flow of refrigerant into the evaporator coil. If the internal diaphragm or sensing bulb fails, the valve may 'under-feed' the coil, causing a significant pressure drop. According to the pressure-temperature relationship of R-410A refrigerant, this drop in pressure forces the saturation temperature below freezing, leading to rapid ice formation.
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VIEW ON AMAZON
#CommissionsEarned
|
|
2%
CONF
|
AC Compressor Contactor
If the contactor points weld together due to electrical arcing, the outdoor compressor will run continuously even when the indoor blower motor is cycled off by the thermostat. Without the indoor fan providing heat load across the evaporator, the refrigerant temperature plummets, causing the coil to freeze solid during the 'off' cycle.
SKU: 42-25101-01
|
VIEW ON AMAZON
#CommissionsEarned
|
DIY Repair Guide
Watch exactly how to replace the High-Efficiency Pleated Air Filter (20x20x1 or size-specific).
// 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.