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RUUD UA16 Wont Start

CONF DIAGNOSIS ACTION
96%
CONF
Dual Run Capacitor
The capacitor stores energy to provide a phase-shifted current to the compressor's start winding. Without this specific electrical lag, the motor cannot generate the magnetic torque required to initiate rotation against high refrigerant head pressure. The fan continues to run because it uses a separate, lower-capacitance terminal on the same device that often remains functional longer than the high-capacitance compressor side.
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2%
CONF
AC Contactor
The contactor acts as the heavy-duty relay that switches 240V power to the compressor and fan. Over time, the silver-plated contacts can become pitted or carbon-fouled, creating high resistance. This can result in a voltage drop significant enough to prevent the compressor from starting while still providing enough current to drive the lower-amperage fan motor.
SKU: 42-25101-01
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2%
CONF
Hard Start Kit
As compressors age, internal mechanical friction and bearing wear increase the 'break-away' torque required to start. A hard start kit utilizes a potential relay and a dedicated start capacitor to provide a massive, momentary increase in starting torque, allowing the compressor to overcome mechanical binding that a standard run capacitor can no longer handle.
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DIY Repair Guide

Watch exactly how to replace the Dual Run Capacitor.

// 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.

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