Pentair MasterTemp/Max-E-Therm Control PCBA Membrane Pad Replacement Kit | 461105
Pentair
SKU: 461105
Pentair 461105 – Control Board Kit (6-Button) for Pool & Spa Heaters
Product Overview
The Pentair 461105 Control Board Kit is an OEM replacement electronic control board designed for use in Pentair MasterTemp® and Sta-Rite Max-E-Therm® pool & spa heaters. It features a six-button membrane pad and RS-485 communications assembly, delivering accurate control, diagnostics and heater operation reliability.
Key Features
- Full replacement kit including printed circuit board assembly (PCBA), six-button membrane pad and RS-485 communications module.
- Designed for both natural gas (NG) and propane (LP) heater configurations.
- Direct replacement for many years of Pentair and Sta-Rite heater models—restores original functionality and user interface.
- Provides diagnostic feedback, error code display and system status indicators for improved servicing.
Technical Specifications
- Part Number: 461105
- Kit Includes: Control board, membrane keypad, communications assembly
- Compatible Fuel Types: Natural Gas (NG) & Propane (LP)
- Interface: Six-button keypad with LCD or digital display (varies by model)
Compatible Heater Models
This control board kit fits select models in the following families: Pentair MasterTemp series (including 125, 200, 250, 280 BTU units) and Sta-Rite Max-E-Therm series. Always verify your heater model and serial number before ordering the kit.
Installation Instructions
- Turn off the heater power supply and shut off the circulation pump.
- Disconnect electrical and gas supply per manufacturer-specified lock-out procedures.
- Open the heater access panel, remove the existing control board and keypad, and disconnect ribbon cables and connectors.
- Install the new 461105 kit—connect the board, keypad, and communications module; secure mounting hardware.
- Restore electrical and gas supply, power up the heater, and observe startup sequence—monitor for correct keypad operation and absence of error codes.
Troubleshooting
- No display or unresponsive keypad: Verify power supply, fuse on the board, ribbon cable connection and that the kit has been installed correctly.
- Error codes persist: Check that the board firmware is correct for your heater model, ensure sensors and wiring harnesses are intact, then reset the system.
- Heater won’t fire or circulate: Confirm the control board is properly grounded and connected, and review wiring diagrams for compatibility.
Maintenance Tip
Inspect your heater’s control electronics each service interval. If the keypad shows wear, display is fading, or operation becomes erratic, installing the 461105 kit proactively can help avoid downtime and ensure reliable heater performance for the remainder of the equipment’s life.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
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