The Nordyne 626017 Fan & Limit Control Assembly is a replacement control package that combines a fan switch (F115-20F) and limit switch (L115-15F) into a single 4-prong assembly. Designed for use in compatible Nordyne, Intertherm, and Miller heating systems, this control regulates blower operation and protects the furnace from overheating. Each assembly is shop-built to replace obsolete OEM configurations and is manufactured to order.

Cross-Reference

• Nordyne 626017
• 6260170
• 626018
• 6260180
• 626019
• 6260190
• ASM 23900

Direct OEM

Nordyne 626017

Compatible Brands

• Nordyne
• Intertherm
• Miller
• Broan
• Frigidaire
• Maytag
• Tappan
• Westinghouse

Application

Used in compatible gas, oil, and manufactured housing furnaces to:

• Control blower fan operation
• Provide high-temperature limit protection
• Prevent furnace overheating
• Cycle the indoor blower based on heat exchanger temperature
• Maintain proper furnace operating temperatures

Related Components

• Fan & Limit Control
• High-Limit Switch
• Blower Relay
• Furnace Control Board
• Transformer
• Blower Motor
• Ignition Control Module
• Furnace Thermostat

Technician Notes

This assembly includes an F115-20F fan switch (11T11) and L115-15F limit switch (11T12) mounted as a complete 4-prong assembly. Individual switches are not sold separately. This is a shop-built replacement assembly designed to replace obsolete Nordyne configurations. Please allow 24 to 48 hours for assembly prior to shipment.

Common Symptoms of Failure

• Blower fan will not start
• Blower fan runs continuously
• Furnace overheats and shuts down
• Limit switch trips repeatedly
• Short heating cycles
• Intermittent blower operation
• No heat output
• Poor temperature regulation

Installation Tips

1. Disconnect power before servicing.
2. Verify correct terminal orientation before wiring.
3. Transfer wires one at a time from the original assembly.
4. Inspect wiring for heat damage or corrosion.
5. Confirm fan and limit settings match original specifications.
6. Test blower operation after installation.
7. Verify proper furnace cycling through a complete heating cycle.

Recommended Inspection Items

• Blower motor operation
• Heat exchanger condition
• Fan switch contacts
• Limit switch operation
• Wiring terminals
• Control board connections
• Air filter condition
• Supply and return airflow
• Furnace temperature rise