626404R Nordyne Rollout Limit Switch

Product Overview

626404R is an OEM double-pole rollout limit switch rated at 145°F (L145) for Nordyne HVAC systems. It serves as a critical safety device by interrupting the electrical circuit when temperatures exceed the specified limit, preventing overheating and potential component damage.

Technical Specifications

• Opens at 145°F limit point (L145)

• Double-pole configuration interrupting both hot and neutral lines

• Size: 64TX11 mounting footprint for direct OEM replacement

Cross-Reference Part Numbers

| 626404R | Replaces: 208439, 626257, 6262570, 626261, 6262610, 626334, 626404 |

Compatibility

Compatible with Nordyne and Intertherm gas furnaces and packaged HVAC units requiring a 145°F double-pole rollout limit switch. Always verify the part number on the appliance’s data plate or service manual before ordering.

Technician Notes

1. De-energize all power sources; lock out/tag out per safety procedures.

2. Remove the furnace access panel to locate the existing rollout limit switch.

3. Document or label each lead on the old switch before disconnecting.

4. Remove mounting screws and carefully extract the old switch.

5. Align the new 626404R on the same mounting holes and secure with screws.

6. Reconnect the wiring to the corresponding terminals, ensuring firm, corrosion-free connections.

7. Restore power and allow the system to call for heat; the circuit remains closed below 145°F and opens at the limit point.

8. If the switch trips prematurely or fails to reopen, inspect the heat exchanger and airflow for blockages before replacing components.

2 pole limit control switch. L145F (L145-40F). Size 64TX11. Double Pole Limit Switch

Replaces 208439, 626257, 6262570, 626261, 6262610, 626334 & 626404.