Rheem SP20770 Service Part - Blocked Exhaust Switch Click to zoom

Rheem SP20770 Service Part - Blocked Exhaust Switch

MPN SP20770

In stockBlowers Pressure Switches

Overview

Rheem SP20770 — Service Part - Blocked Exhaust Switch.

Checks for proper airflow for burner combustion in water heater Shuts burner down if air not detected Optimizes proper combustion

  • Manufacturer part number: SP20770
  • Brand: Rheem
  • Category: Blowers Pressure Switches
  • Sold for HVAC / plumbing service replacement — verify OEM fitment before ordering

Frequently asked questions

What is SP20770?

Rheem SP20770 is sold as SERVICE PART - BLOCKED EXHAUST SWITCH. Confirm fitment against your equipment model and the OEM part number before ordering.

Is this an OEM part number?

The manufacturer part number is SP20770. Our internal warehouse SKU uses a TL- prefix for inventory tracking.

How should I verify compatibility?

Match the full OEM part number on the old component or your unit's parts list. When in doubt, provide the equipment model number to your counter person.

Do you include installation instructions?

Follow the OEM service literature for your equipment. Disconnect power and recover refrigerant or isolate water as required before replacing parts.

What is your return policy on parts?

Unopened, unused parts in original packaging may be returned per store policy. Electrical and special-order items may be final sale — check the product page notes.

Is a GTIN/UPC available?

When a manufacturer GTIN is known it is listed in the barcode field. Some HVAC OEM parts ship without a retail UPC; brand and MPN still identify the product.