RHEEM RA20 PRESTIGE SERIES Wont Start
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
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86%
CONF
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Inverter Control Board
The RA20 uses a variable-speed inverter to drive the compressor; if the fan is operational but the compressor is not, the Intelligent Power Module (IPM) on this board has likely suffered a thermal failure or a FET breakdown. This board is responsible for converting line voltage into the specific 3-phase pulses required to rotate the scroll compressor motor.
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VIEW ON AMAZON
#CommissionsEarned
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9%
CONF
|
Dual Run Capacitor
In standard AC systems, this component provides the necessary phase-shifted current to the compressor's start windings; if it fails via dielectric breakdown, the compressor will hum or click but fail to overcome static friction (Locked Rotor). While the RA20 is an inverter model, identifying 'RA' series units often leads to standard PSC motor troubleshooting where this is the #1 statistical failure.
SKU: 43-25133-25
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VIEW ON AMAZON
#CommissionsEarned
|
|
5%
CONF
|
Single Pole Contactor
The contactor acts as the electromechanical bridge for high voltage; over time, the silver-cadmium contacts can become pitted or carbon-fouled (chattering), allowing enough current to pass for the low-load fan motor but insufficient amperage to drive the high-torque compressor motor.
|
VIEW ON AMAZON
#CommissionsEarned
|
DIY Repair Guide
Watch exactly how to replace the Inverter Control Board.
// 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.