Sta-Rite 42002-0029Z switch membrane button pad for Max-E-Therm heatersSta-Rite Switch Membrane Replacement for Max-E-Therm Heaters, 42002-0029Z In stock$13299
Sta-Rite 42002-0029Z switch membrane button pad for Max-E-Therm heaters
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Sta-Rite Switch Membrane Replacement for Max-E-Therm Heaters, 42002-0029Z

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$13299
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Quick overview

  • The button pad This is the switch membrane you press to operate the heater control panel.
  • Genuine Sta-Rite Factory part number 42002-0029Z.
  • Max-E-Therm heaters Listed in the electrical system parts for the Max-E-Therm SR-200, SR-333 and SR-400.
  • Fixes dead buttons When a button stops registering or needs several presses, the membrane is usually the fault rather than the board.
  • Sealed against weather The membrane is what keeps water and dirt out of the switches behind it.
  • Cheaper than a board Worth ruling out before condemning the control board on a heater that otherwise runs.
Full description and specifications ↓

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Product details

The Sta-Rite 42002-0029Z is the switch membrane for the Max-E-Therm heater control panel, the printed pad that carries the buttons you press to set the heater.

What goes wrong

Membranes fail before the electronics behind them. A button that takes two or three presses to register, or one that has stopped responding entirely while the rest of the panel works, is almost always a worn contact in the membrane rather than a fault on the control board. The membrane is also the seal that keeps moisture out of the switches, so a split or lifted pad is worth changing quickly even if everything still functions.

Before you order a board

On a heater that fires and runs normally but is awkward to operate, the membrane is the cheap thing to rule out first. The control board, the board enclosure membrane panel kit and the terminal board are separate parts on the same electrical system diagram.

This part is listed for the Max-E-Therm SR-200, SR-333 and SR-400.

Specifications
Brand Sta-Rite
Manufacturer part number 42002-0029Z
UPC 788379724832
Type Switch membrane, control panel button pad
System Electrical system
Fits Sta-Rite Max-E-Therm SR-200, SR-333 and SR-400 heaters
Shipping weight 0.7 lb
Ships Parcel

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Questions and answers

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

Which heaters does this fit?
The Sta-Rite Max-E-Therm SR-200, SR-333 and SR-400, where it appears in the electrical system parts.
My buttons need several presses to register. Is this the fix?
That is the classic symptom of a worn membrane. The contact behind the printed button degrades before anything else on the panel does, so change the membrane before condemning the control board.
Does the control board come with it?
No. The switch membrane is the pad only. The control board and the board enclosure panel kit are separate parts.
Why do these wear out?
They sit outdoors and get pressed thousands of times over a heating season, with UV and moisture working on them the rest of the year. The membrane is the panel part designed to be replaced.
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