Pentair 473155 transformer for MiniMax Plus and ThermaFlo heat pumpsPentair Transformer for MiniMax Plus, ThermaFlo and ThermaFlo Titanium Heat Pump, 473155 In stock$15699
Pentair 473155 transformer for MiniMax Plus and ThermaFlo heat pumps
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Pentair Transformer for MiniMax Plus, ThermaFlo and ThermaFlo Titanium Heat Pump, 473155

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$15699
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Quick overview

  • Pentair part 473155 The factory transformer for these heater and heat pump models.
  • Covers three models Fits the MiniMax Plus, the ThermaFlo and the ThermaFlo Titanium.
  • Powers the control side The transformer steps supply voltage down to run the controls.
  • Dead panel diagnosis A heater with no display and no response at all often traces back to the transformer.
  • Direct replacement Goes back in the same position as the original, no adapting needed.
  • Genuine Pentair The OEM part rather than a generic transformer of similar rating.
Full description and specifications ↓

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Product details

Pentair 473155 is the replacement transformer for the MiniMax Plus, the ThermaFlo and the ThermaFlo Titanium heat pump.

What it does

The transformer takes the incoming supply voltage and steps it down to the low voltage the control board, the display and the safety circuits run on. Everything the heater does for itself depends on it. When the transformer fails, the unit typically looks completely dead even though the breaker is on and voltage is present at the disconnect.

Fitting

It is a direct replacement that mounts in the same position as the original. The work happens inside a live panel, so kill the power at the breaker first, and if you are not confident working with line voltage, hand it to a qualified service technician.

Specifications
Brand Pentair
Manufacturer part number 473155
UPC 788379604295
Type Transformer
Fits Pentair MiniMax Plus, ThermaFlo, ThermaFlo Titanium heat pump
Shipping weight 2 lb
Ships Parcel

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Questions and answers

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

Which units does this transformer fit?
The Pentair MiniMax Plus, the ThermaFlo and the ThermaFlo Titanium heat pump.
How do I know the transformer has failed?
The usual sign is a unit with power at the disconnect but nothing at the control board, no display and no response to a call for heat.
Is this the genuine Pentair part?
Yes. It is Pentair part number 473155.
Can I fit it myself?
It is a bolt in and rewire job, but it is inside a live high voltage panel. Unless you are comfortable and qualified working there, have a service tech do it.
Ask your own question