Reznor 103256 Gasket

The Reznor 103256 Gasket is a precision-engineered OEM replacement part designed specifically for sealing the blocked vent switch on Reznor unit heaters. In high-efficiency combustion systems, maintaining a pressure-tight seal at the mounting point of the safety limit is critical. This HVAC vent switch gasket ensures that the sensing probe accurately monitors flue gas pressure without interference from ambient air leakage or bypass. Constructed from high-temperature gasket material, the 103256 is built to withstand the thermal cycling typical of commercial and industrial heating applications. Proper installation of this replacement heating gasket is a standard requirement whenever the blocked vent switch is serviced or replaced to prevent nuisance trips or unsafe operating conditions. For technicians performing Reznor heater maintenance, utilizing this genuine 103256 gasket ensures the unit remains compliant with original equipment specifications and safety standards. Its exact fit eliminates the need for field modifications, providing a reliable seal between the switch housing and the venter assembly.

• Engineered Seal Integrity: Provides a gas-tight interface for the blocked vent switch, preventing pressure loss.
• Durable Thermal Resistance: Manufactured from industrial-grade materials designed for localized high-temperature exposure.
• System Safety Compliance: Ensures the combustion safety circuit functions within the precise parameters set by Reznor.
• Direct OEM Fit: Eliminates leaks often caused by universal gaskets, reducing diagnostic callbacks during the heating season.

What is the purpose of the Reznor 103256 Gasket?
This component creates a critical seal for the blocked vent switch, ensuring the safety sensor accurately detects flue obstructions by preventing air leaks at the mounting point.

When should this gasket be replaced?
Technicians should install a new 103256 gasket every time the blocked vent switch is removed for inspection or replaced to maintain the integrity of the pressure seal.

Is this part compatible with all Reznor heaters?
The 103256 is primarily used on specific Reznor unit heaters equipped with a blocked vent safety switch. Always verify compatibility with the specific model and series of the equipment.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.