Hayward SMX11022320 compressor run capacitor, 80 uF 440 VAC, for HeatPro heat pumpsHayward Capacitor, 80 uF, 440 Vac, SMX11022320$8299
Hayward SMX11022320 compressor run capacitor, 80 uF 440 VAC, for HeatPro heat pumps
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Hayward Capacitor, 80 uF, 440 Vac, SMX11022320

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$8299
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Quick overview

  • Compressor run capacitor Keeps the compressor motor running smoothly once it is up to speed.
  • 80 uF at 440 VAC Match both numbers when replacing, since capacitance and voltage rating both matter.
  • HeatPro application Listed for the Hayward HP21104T and HP21104TC HeatPro heat pumps.
  • Genuine Hayward Factory part number SMX11022320.
  • Common failure A weak capacitor shows up as a compressor that hums, trips the breaker or refuses to start.
  • Discharge before handling A capacitor holds a charge after power is off, so treat it as live and have it discharged before touching the terminals.
Full description and specifications ↓

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Product details

The Hayward SMX11022320 is the compressor run capacitor for HeatPro heat pumps, rated 80 uF at 440 VAC. It is listed for the HP21104T and HP21104TC models.

What it does

A run capacitor stays in the circuit while the compressor is turning. It provides the phase shift the motor windings need to run efficiently. As the capacitor ages its capacitance falls, and the compressor starts drawing more current, running hotter and struggling to get going.

Symptoms and safety

Failed capacitors are one of the more common reasons a heat pump stops making heat. The compressor hums but will not start, or the unit trips its breaker shortly after calling for heat. A bulged or leaking case confirms it. Capacitors store energy after the power is switched off, so this is work for someone comfortable discharging one safely before the terminals are touched.

Specifications
Brand Hayward
Manufacturer part number SMX11022320
UPC 610377256124
Type Compressor run capacitor
Capacitance 80 uF
Voltage rating 440 VAC
Fits Hayward HP21104T and HP21104TC HeatPro heat pumps
Shipping weight 0.33 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What does a run capacitor do?
It supplies the phase shift the compressor motor needs to keep turning efficiently after it starts. A weak one makes the motor draw more current and run hot.
Which heat pumps take this one?
Hayward HeatPro models HP21104T and HP21104TC.
Do the ratings have to match exactly?
The capacitance should match at 80 uF, and the voltage rating is 440 VAC. Do not substitute a lower voltage rating.
How do I know the capacitor has failed?
A bulged or leaking case is a clear sign. Electrically it shows up as a compressor that hums without starting, starts hard, or trips the breaker.
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