
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.
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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.
| 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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