Ravilaxia Control Board Kit 42002-0007S for Pentair MasterTemp & Sta‑Rite — Includes 472610Z Pad, Upgraded Components

The Ravilaxia 42002-0007S control board kit replaces and upgrades the electronics on Pentair MasterTemp and Sta‑Rite Max‑E‑Therm NA & LP series pool and spa heaters, including the 472610Z switch film pad for a complete swap.

If your heater won’t start, the monitor stays dark, or heat delivery is slow, swapping the control board can restore reliable operation. This kit is built to match the electrical interfaces used across MasterTemp and Sta‑Rite models while offering improved components—solid‑state capacitors, a stronger waterproof coating, and a regulated power stage—to boost durability and protect against common electrical faults.

Which heater models will this control board kit work with?

The 42002-0007S kit is designed for broad compatibility across Pentair MasterTemp and Sta‑Rite Max‑E‑Therm NA and LP lines. It fits many factory control board part numbers used in these heater families, making it a common replacement option for both residential and light commercial units.

• Compatible with MasterTemp models 200, 250, 300, 400, and 400HD
• Fits Sta‑Rite Max‑E‑Therm SR/SE series such as SR200NA, SR333NA, SE400NA, SR200HD, SR333HD, SR400HD
• Includes the 472610Z switch film pad required for ribbon‑cable button assemblies
• Check the existing board label and connector layout before ordering to confirm fit

What improvements does this upgraded board offer versus the original?

Ravilaxia upgraded the internal parts and protective coating to increase longevity and electrical stability. The kit’s better capacitors, improved optocoupler, and regulated power module reduce sensitivity to voltage spikes and help the control board manage outputs more responsively.

• Higher‑quality solid‑state capacitors for longer life and stable voltage handling
• Improved optocoupler for faster, cleaner signal isolation between control and power sections
• Regulated power module adds overheat, overvoltage, and short‑circuit protection
• SR waterproof coating helps resist humidity inside heater cabinets

How difficult is installation and what steps are involved?

Installation is straightforward for anyone comfortable working with electrical components and following safety protocols. Power must be fully disconnected before starting, and the process typically involves removing four screws, swapping the board and the included 472610Z switch pad, and reconnecting the same wire harnesses.

• Turn off all power to the heater and verify it’s isolated
• Remove top access panel and the four screws securing the original circuit board
• Unplug wire harnesses, remove old ribbon‑pad, insert new 472610Z pad, and seat new board
• Reassemble panels, restore power, and confirm connectors are secure and system powers on

What safety and compatibility checks should I perform before and after installing?

Before buying or installing, confirm the control board’s footprint and connector layout match the original. After installation, verify all connections are tight and test the heater through a controlled startup to ensure normal operation without error codes.

• Match connector types and board mounting holes to your original board before purchase
• Ensure the 472610Z switch pad aligns with the ribbon cable contact properly
• Check for secure screw torque and that no loose wires remain inside the cabinet
• Power on the heater and observe the display and function tests for proper startup

Who is this for: This control board kit is intended for pool and spa owners, service technicians, and maintenance professionals who need a reliable replacement for failing Pentair MasterTemp or Sta‑Rite Max‑E‑Therm control electronics. It suits anyone replacing a burnt, unresponsive, or slow‑acting control board and who can follow basic electrical safety steps during installation. If you’re unsure about compatibility, compare your existing board’s model numbers and connector layout to the kit before ordering, or consult a qualified technician.