L4064B2236 Fan and Limit Controller, 8 in Insert

L4064B2236 fan and limit controller for matching forced-air heating applications. Supplied as one controller.

Available to order. Contact us if you need a dispatch estimate before purchasing.

Model and selection

• Model: L4064B2236
• Nominal sensing-element insertion length: 8 in (203.2 mm).
• Controls the circulating fan and the high-temperature limit in a matching heating system.

Match the full part number, insertion length, mounting, wiring and required temperature settings to the equipment specification. Insertion length is measured from the mounting face to the probe tip; overall assembly length is different.

Installation and setup must be performed by a qualified heating technician in accordance with the equipment and controller instructions.

Product image

Series reference image: L4064B2210 is shown. The label and probe length in this shared photograph do not represent every model. This listing is for L4064B2236 with an 8 in nominal insertion length.

Manufacturer L4064 selection guide (page 35)

Compare L4064 insertion lengths

• L4064B2228: 5 in (127 mm) nominal insertion length.
• L4064B2236: 8 in (203.2 mm) nominal insertion length.
• L4064B2210/U: 11.5 in (292 mm) nominal insertion length.

These are different models, not confirmed interchangeable replacements. Measure from the mounting face to the sensing-element tip, and have a qualified heating technician verify the full part number, mounting, wiring and temperature settings.

Check my furnace control model or send a label photo

View the L4064 model comparison and measurement checklist before selecting a different insertion length.