open black and yellow hard plastic case with foam insert holding various small mechanical parts and components
Various electronic and mechanical components including circuit boards, wires, connectors, springs, sensors, and control panels for repair kit
rectangular black plastic carrying case with handle and pentair master service package label with blue geometric design

Pentair Pro Service Package Master | MasterTemp & Max-E-Therm | 461100

Regular price$1,097.99
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SKU:
461100
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About This Item

The Pentair Pro Service Package – Master (461100) is the OEM master repair kit for the MasterTemp and Max-E-Therm High Performance gas heater series, covering the most commonly replaced electrical, sensing, and sealing components in a single, organised hardcase.

IMPORTANT: THIS IS A KIT — MULTIPLE COMPONENTS INCLUDED
This listing is for the complete Pro Service Package – Master kit. It contains multiple individual components supplied in a reusable hard case. You are not purchasing a single part. Review the component list below before ordering to confirm you need this master-level kit.

IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED
This kit contains gas ignition, high-voltage electrical, and safety-critical control components. Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification.

The 461100 Pro Service Package – Master consolidates the most frequently replaced components of the MasterTemp and Max-E-Therm heaters into one stocked kit. When a heater presents with ignition failure, control faults, sensor errors, or water/air pressure issues, this package provides the OEM replacement parts needed to complete a thorough diagnostic service without multiple part orders.

Kit Contents

# Component
1 Fireman's Switch Fuse
2 O-Ring #2-226
3 Membrane Pad
4 Ignition Control Module
5 Thermistor
6 Water Pressure Switch
7 Air Flow Switch
8 High Limit Switch
9 Transformer
10 Control Board
11 Stack Flue Sensor
12 Automatic Gas Shut-Off Switch
13 Manifold By-Pass Valve
14 Thermal Regulator Kit
15 Igniter Gasket

Specifications

Pentair Part Number 461100
Part Name Pro Service Package – Master
Unit of Measure Each (Kit — commonly replaced items in a reusable case)

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair MasterTemp 200NA Pro Service Package – Master; commonly replaced items in reusable hard case. Not compatible with 125,000 BTU heater.
Pentair MasterTemp 200LP Pro Service Package – Master; commonly replaced items in reusable hard case. Not compatible with 125,000 BTU heater.
Pentair MasterTemp 400NA Pro Service Package – Master; commonly replaced items in reusable hard case. Not compatible with 125,000 BTU heater.
Pentair MasterTemp 400LP Pro Service Package – Master; commonly replaced items in reusable hard case. Not compatible with 125,000 BTU heater.
Pentair Max-E-Therm 333NA Pro Service Package – Master; commonly replaced items in reusable hard case. Not compatible with 125,000 BTU heater.
Pentair Max-E-Therm 333LP Pro Service Package – Master; commonly replaced items in reusable hard case. Not compatible with 125,000 BTU heater.

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.

Poolaroo Pro Tip

Service professionals keep the 461100 kit stocked for MasterTemp and Max-E-Therm call-outs precisely because heater fault codes rarely point to a single failed component — a failed thermistor often accompanies a degraded pressure switch, and an ignition control fault can mask a failing air flow switch. Having the complete set on-site eliminates the delay of a second visit. Before opening the case, confirm your heater model number on the rating plate and verify it is a 175/200/250/300/333, or 400 BTU variant — this kit is not designed for the 125,000 BTU (125K) model.

CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Pentair Pool Products and Parts

About Pentair Pool Products and Parts

Pentair is often considered the "gold standard" for pool professionals, and for good reason. Founded in 1966 (originally by five inventors making high-altitude balloons!), the company has evolved into the global leader in smart, sustainable water solutions. For the DIY homeowner, Pentair represents the intersection of rugged durability and silicon valley-tier technology. They pioneered the Variable Speed Pump revolution with the IntelliFlo®, saving American pool owners millions in energy costs. Today, their ecosystem focuses heavily on automation, allowing you to control your pump, heater, lights, and chemistry from a single app. While they are a favorite among professional builders, their "EC" (E-Commerce) line of equipment allows homeowners to access pro-grade technology with valid warranties for DIY installation.

Why We Trust Pentair Pool Products and Parts
Energy Efficiency Leaders: Recipient of the ENERGY STAR® Partner of the Year award for over a decade; their pumps are designed to pay for themselves in energy savings.

Smart Automation: The Pentair Home App and IntelliCenter systems offer best-in-class control over your pool ecosystem from anywhere in the world.

Professional Pedigree: The brand most often recommended and installed by pool builders for high-end residential pools.

Eco-Conscious: Dedicated to reducing water waste and energy consumption through "Green" technology innovations.

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