018758F Raypak® Unitherm Governor Bypass Kit for Models 105F–408 Pool Heaters․ OEM factory part designed to regulate internal water temperature and flow․
The Raypak 018758F Unitherm Governor and Bypass Assembly Kit is a genuine Raypak® Factory Replacement Part engineered for use in Raypak pool and spa heaters (models 105F through 408).
This assembly combines the Unitherm Governor and bypass valve functions to control water temperature and maintain proper internal flow through the heat exchanger, preventing condensation and ensuring efficient operation.
Features:
- Genuine Raypak® Factory OEM Replacement Part
- Combines Unitherm Governor and Bypass Assembly
- Maintains proper internal heater flow and temperature balance
- Prevents condensation and scale formation inside heat exchanger
- Factory-calibrated for precise water regulation
- Includes all necessary hardware and O-rings
Technical Specifications:
- Part Number: 018758F
- Manufacturer: Raypak® (A Rheem® Company)
- Component Type: Unitherm Governor / Bypass Assembly
- Construction: Brass body, stainless steel spring, and polymer guide
- Includes:
- (1) Unitherm Governor/BYPASS Assembly
- (2) Mounting Bolts
- (2) O-Rings
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Fits Models:
- Raypak 105F
- Raypak 156A
- Raypak 206A
- Raypak 266A
- Raypak 336A
- Raypak 406A / 407A / 408A
Compatibility:
- Designed for Raypak Gas Pool and Spa Heaters in the digital and analog 105F–408 series.
- Direct OEM replacement—no modifications required.
Function:
The Unitherm Governor automatically regulates water temperature inside the heat exchanger, maintaining consistent thermal performance and extending the heater’s lifespan by preventing condensation at low water temperatures.
Safety & Installation Notes:
Installation should only be performed by a qualified service technician. Always disconnect power, gas, and water supply before servicing.
We sells only brand new products; however, we do not provide any warranty coverage ourselves, nor do we guarantee manufacturer warranty eligibility.
It is the sole responsibility of the purchaser to verify whether a product qualifies for warranty coverage prior to making a purchase.
We strongly recommend contacting the product manufacturer directly to confirm warranty eligibility.
By completing your purchase, you acknowledge and agree that we are not liable for warranty coverage or support if the manufacturer refuses to honor the warranty based on their policies.
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