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PENTAIR Thermal Fuse Replacement Kit || 475998

Pentair  |  SKU: 475998
$5795 USD $7895

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Description

PENTAIR Thermal Fuse Replacement Kit || 475998

Pentair Thermal Fuse Replacement Kit (475998) – Genuine OEM Heater Protection

Available at ePoolSupply.com – Your Authorized Pentair Reseller

Protect your Pentair MasterTemp or Sta-Rite Max-E-Therm pool heater from overheating and thermal damage with the Pentair Thermal Fuse Replacement Kit (475998). This OEM replacement fuse kit is a critical safety component, designed to shut down the heater if internal temperatures exceed safe operating limits. If your heater won’t turn on, shuts off unexpectedly, or displays high-limit error codes, a blown thermal fuse may be the cause—replace it today with this Pentair-approved kit for safe, reliable operation.


Product Details:

Brand: Pentair
Part Number (SKU): 475998
UPC: 788379878108
Function: Prevents overheating by shutting down the heater at excessive temperatures
Temperature Rating: Factory-set to trip at unsafe temperature thresholds
Compatibility: Pentair MasterTemp & Sta-Rite Max-E-Therm heaters
Durability: Heat-resistant, corrosion-proof design for long-lasting protection


Why Choose the Pentair 475998 Thermal Fuse Kit?

Genuine Pentair OEM Part – Ensures precise fit and performance for your heater
Prevents Overheating & Damage – Protects internal components from excessive heat
Restores Heater Operation – Fixes power loss due to a blown thermal fuse
Easy Installation – Includes factory-designed replacement components for quick setup
Long-Lasting Reliability – Built with high-temperature-resistant materials for extended durability


Brief History & Importance of the Thermal Fuse

The Pentair Thermal Fuse (475998) is a critical safety feature in MasterTemp and Sta-Rite Max-E-Therm heaters, designed to prevent dangerous overheating by shutting down the unit when temperatures exceed factory-set limits. This fuse helps protect internal heater components, including the heat exchanger, ignition system, and control board, from excessive heat damage.

Over time, factors such as poor ventilation, clogged filters, or scale buildup can cause higher internal temperatures, leading to thermal fuse failure. Replacing a blown thermal fuse restores safe operation and prevents more costly heater repairs down the line.


Installation Tips & Tricks

WARNING: Always disconnect power at the circuit breaker before working on electrical components.

🔧 Step 1: Turn Off Power – Ensure the heater is completely powered down before servicing.
🔧 Step 2: Access the Thermal Fuse – Remove the heater’s front panel to locate the existing fuse.
🔧 Step 3: Disconnect the Old Fuse – Carefully remove the faulty thermal fuse and any wiring connections.
🔧 Step 4: Install the New Fuse – Secure the Pentair 475998 thermal fuse in place and reconnect the wiring properly.
🔧 Step 5: Test the Heater – Restore power and check for proper operation without error codes.

💡 Pro Tip: If your thermal fuse continues to fail, check for restricted airflow, clogged vents, or high internal temperatures, as these could indicate underlying issues.


Buy with Confidence from ePoolSupply.com.

As an authorized and preferred Pentair reseller, ePoolSupply.com guarantees authentic OEM replacement parts, fast shipping, and expert customer support. Avoid aftermarket risks—restore your heater’s safety and performance with the Pentair 475998 Thermal Fuse Replacement Kit today!

🚚 Fast Shipping | ✅ Genuine Pentair Parts | 🔧 Expert Support

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Product Warranty

Warranty Information

ePoolSupply Warranty: Here at ePoolSupply, we strive to get our customers the right product, the first time. Even though we aim for this, mistakes do happen. Therefore, we allow the following options:

- All products are eligible for returns, or exchanges, up to 30 days from delivery.
- All products are subject to manufacture warranty from day 1 up to when the warranty ends.

 

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ePoolSupply.com has teamed up with Extend to offer our customers peace of mind for purchasing items from our website! Most products displayed on our website will now offer an Extend plan to ensure that the items you purchase from our manufacturers will be covered no matter what! Check out some of the information below on how simple and easy the Extend process can be!

Enjoy added peace of mind with an Extend protection plan. From a simple, stress-free claims process to quick repairs or replacements, we're here for you when the unexpected happens.


Adding Extend is easy.

When shopping for your favorite brands, look for Extend at checkout to add a protection plan.

1. Add Extend while you shop. Simply add a protection plan at checkout when shopping for millions of eligible products.

2. File a claim in minutes. If you have an issue with your product, easily file a claim in just a few clicks.

3. Enjoy your product!

When your claim is approved, get a quick repair or replacement.

Please contact us with any questions or concerns as we are happy to help!


Pentair Warranty:

Registration Link HERE.

Contact Link HERE.

While many Pentair products are covered by a sixty- (60) day warranty, a select number of products qualify for extended warranty coverage. You can view the whole policy here.

Select Bundled Products: applies to purchases and qualified installation of a minimum of a pump and filter, and one or more of the following: heaters, heat pumps, control systems, automatic cleaners, lighting, salt chlorine generators, or UV sterilizer**

*Note: Qualified Installer - Defined as a licensed professional who charges a fee for his services, and possesses a business license, contractor's license, and/or resale permit. Common examples of a "qualified installer" include Swimming Pool, Home Repair or Landscape Professional; Plumber or Electrician; General Contractor; Heating and Air Conditioning Specialist.

**Note: Bundled products - must be purchased on the same invoice and installed at the same time. If any product within a bundle is ineligible for the bundled warranty coverage, then all products within the same bundle will be disqualified from receiving the three (3) year extended warranty coverage for bundled products.

Trade Grade products must be purchased from a retail store (brick & mortar), pool builder, or pool service company to receive a one-year, two-year, or three-year warranty. If purchased online will only receive a sixty-day limited warranty. View the list of Trade Grade Products.

^Labor Costs are not covered outside of US/Canada

Exceptions that may result in denial of a warranty claim:

  1. Damage caused by careless handling, improper repackaging, or shipping.
  2. Damage due to misapplication, misuse, abuse, or failure to operate equipment as specified in the owner's manual.
  3. Damage caused by failure to install products as specified in the owner's manual.
  4. Damage due to unauthorized product modifications or failure to use Pentair's original replacement parts.
  5. Damage caused by negligence, or failure to maintain products as specified in the owner's manual properly. 
  6. Damage caused by failure to maintain water chemistry in conformity with the standards of the swimming pool industry for any length of time.
  7. Damage caused by water freezing inside the product.
  8. Accidental damage, fire, acts of God, or other circumstances outside the control of Pentair.
  9. Please see the warranty card for commercial exceptions.

Pump Warranties:

Models Sold: 342001/011028: Backed by a 2-Year Manufacturer's Warranty**

**When installed by an industry professional and the product has been registered through Pentair.

**If the item is "Self-Installed, Pentair will honor a 60-day warranty for PARTS ONLY/NO LABOR from the point of purchase.

 

Fluidra Warranty (Zodiac/Polaris/Caretaker/Jandy):

Contact Fluidra Here

Each Brand operated under the Fluidra umbrella has its own limited warranty. Please see each link below to find your specific warranty for each company.

Zodiac Limited Warranty

Jandy Limited Warranty

Polaris Limited Warranty

Caretaker Limited Warranty

 

A&A (Pentair In-Floor) Warranty:

Contact A&A(Pentair In-Floor) Here. 

Warranty parts

Follow these steps to replace parts under warranty:

  1. Package and ship the parts, making sure you include the following

 information:

  • Warranty certificate number
  • Your complete name, address, and phone number(s)
  1. Prepay the freight and ship the parts to

A&A (Pentair In-Floor) Warranty Department

1502 E Buckeye Rd

Phoenix, Arizona 85034

Note: If you do not have your warranty number, you must first contact A&A (Pentair In-Floor) 

Customer Satisfaction at one of the following phone numbers for directions on

how to replace the parts.

(800) 831-7133

Out-of-warranty parts: You do not need to return out-of-warranty parts. You may order replacement parts by calling A&A (Pentair In-Floor) Customer Satisfaction on the toll-free line (800) 831-7133 or by visiting the website: pentair.com/infloor

 

Paramount Warranty:

Contact Paramount HERE. 

Please click on the link below to file for any warranty issues with Paramount:

PARAMOUNT WARRANTY INFORMATION

 

BlueSquare Warranty:

Contact BlueSquare Here. 

Please click on the link below to file for any warranty issues with BlueSquare:

BlueSquare MFG Warranty Information

 

Hayward Warranty:

Contact Link Here. 

Please click on the link below to file for any warranty issues with Hayward:

Hayward Warranty Information

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