Photograph of  This new compressor was placed directly against
a brick wall. One third of its condenser coil cooling ability was blocked. How to Diagnose & Repair Air Conditioner Compressor Hard Starting

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This air conditioning repair article explains procedures for the diagnosis and repair of hard-starting air conditioning compressors.

If your air conditioner or heat pump compressor motor won't start or has trouble starting, humming at start-up for example, it may be damaged and at or near end of life.

Here we explain how to diagnose air conditioner start-up problems, Air conditioner stutters or makes noises at start-up, When to install a hard-start air conditioner repair kit with starting capacitor, Hard starting can indicate end of air conditioner life, or it may be just a small repair.

But a common repair performed to try to get such motors running and to keep them in use longer is the installation of an air conditioner or heat pump "hard start" kit - a start capacitor or a start/run capacitor that helps get the motor spinning. First it's useful to diagnose the cause of the compressor's hard-starting trouble.

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Diagnose & Repair Air Conditioner Compressor Hard Starting or Intermittent Running or Stuttering

Air conditioner wiring diagram (C) Daniel Friedman

Electric motor starting capacitor (C) Daniel Friedman


Continue reading at CAPACITORS for HARD STARTING MOTORS or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.

Or see HARD STARTING COMPRESSOR MOTOR FAQs - questions & answers posted originally at this article

Or see ELECTRIC MOTOR DIAGNOSTIC GUIDE tests to diagnose electric motors

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HVAC Compressor / Condensing Unit Diagnostic Articles

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