Lennox 14T64 / 104936-01 Dual Furnace Pressure Switch – 1.00 / 0.25" W.C.

Specifications

Catalog Number: 14T64
Part Number: 104936-01
Brand: Lennox
Product Type: Dual Furnace Pressure Switch
Application: Gas Furnace
High Fire Pressure: 1.00" W.C.
Low Fire Pressure: 0.25" W.C.
Stages: 2 Stage
Switch Configuration: SPST – Normally Open
Amperage: 5A
Application: Combustion Air
Furnace Position: Upflow / Horizontal
Elevation: 0–7,500 ft
OEM Replacement: Yes

Replaces

14A39
93W76
80W69
74W36
71W50
104547-01
103612-04
606569-04
103246-02
606569-01
103612-02
102908-01

Lennox 14T64 Dual Pressure Switch

The Lennox 14T64 / 104936-01 pressure switch is an OEM dual pressure switch used in select Lennox, Armstrong, Concord and Ducane modulating gas furnaces.

The 14T64 has 1.00" W.C. high-fire and 0.25" W.C. low-fire pressure settings and is designed for upflow and horizontal furnace applications at elevations from 0 to 7,500 feet.

The 14T64 is also the replacement for several older Lennox pressure switches, including the 93W76, 80W69, 74W36 and 71W50.

Common Furnace Models

The 14T64 pressure switch is used in select furnaces from the:

Lennox SLP98 Series
Lennox SLP99 Series
Armstrong A96 Series
Armstrong A97 Series

Common Symptoms of a Failed 14T64 Pressure Switch

• Furnace will not ignite
• Inducer runs but ignition sequence does not continue
• Pressure switch fault code
• High or low-fire pressure switch does not close
• Furnace starts intermittently
• Furnace will not transition between firing stages
• Ignitor does not energize
• Gas valve does not open
• Furnace repeatedly attempts to start

Buy the Lennox 14T64 / 104936-01 Dual Furnace Pressure Switch from OemHvacPartsCanada.ca.