1. Introduction
This instruction manual provides essential information for the proper installation, operation, and maintenance of the Secop Danfoss 117U6015/F394 Start Relay. This component is designed for use with specific Fagor refrigeration units, including models AFP-1402, AFP-1603, AF-1603-C, and AF-1604-C. Please read this manual thoroughly before attempting any installation or service.
2. Safety Information
WARNING: Risk of Electric Shock!
- Always disconnect power to the refrigeration unit before installing, servicing, or removing the start relay.
- Installation and service should only be performed by qualified and authorized personnel.
- Ensure all electrical connections are secure and properly insulated to prevent short circuits.
- Do not operate the refrigeration unit with a damaged or improperly installed start relay.
Failure to follow these safety instructions can result in serious injury, death, or damage to equipment.
3. Product Overview
The Secop Danfoss 117U6015/F394 is a start relay specifically designed for compressor motor starting in compatible Fagor refrigeration systems. It facilitates the initial surge of current required to start the compressor motor and then disengages once the motor reaches operating speed.

Image 1: Secop Danfoss 117U6015/F394 Start Relay. This image shows a white plastic housing with multiple metal spade terminals for electrical connections. A copper coil is visible on one side, connected to a black conical component, which is part of the relay mechanism.
4. Setup and Installation
This start relay is a direct replacement part for the specified Fagor refrigeration units. Ensure the replacement relay matches the original part number (117U6015/F394) to guarantee compatibility and proper function.
- Power Disconnection: Before beginning, ensure the refrigeration unit is completely disconnected from its power source. Verify with a voltage tester.
- Access Compressor: Locate and access the compressor compartment of your Fagor refrigeration unit.
- Identify Old Relay: Carefully identify the existing start relay connected to the compressor. Note its orientation and wiring connections. It is recommended to take a photograph before removal.
- Remove Old Relay: Disconnect all wires from the old relay and carefully remove it from its mounting position on the compressor.
- Install New Relay: Connect the new Secop Danfoss 117U6015/F394 relay to the compressor terminals, ensuring a secure fit. Reconnect all electrical wires to the corresponding terminals on the new relay, matching the original configuration.
- Secure Connections: Double-check all connections for tightness and proper insulation.
- Restore Power: Once installation is complete and verified, restore power to the refrigeration unit.
- Test Operation: Monitor the unit for proper compressor startup and cooling function.
Note: This relay is designed for applications in refrigerators, cooling tables, and heated display cases (HST version).
5. Operating Instructions
The Secop Danfoss 117U6015/F394 start relay operates automatically as part of the refrigeration unit's control system. Its function is to provide the necessary starting current to the compressor motor when the thermostat calls for cooling. Once the compressor motor reaches its operating speed, the relay automatically disengages the start winding circuit.
No manual intervention is required for the operation of the start relay itself. Proper functioning is indicated by the compressor starting smoothly and the refrigeration unit maintaining its set temperature.
6. Maintenance
The start relay is a sealed electrical component and generally requires no routine maintenance. However, periodic inspection of the relay and its connections is recommended during routine refrigeration unit servicing:
- Visual Inspection: Check for any signs of physical damage, discoloration, or burning on the relay housing or terminals.
- Connection Integrity: Ensure all electrical connections to the relay are clean, tight, and free from corrosion. Loose connections can lead to overheating and relay failure.
- Cleanliness: Keep the area around the relay and compressor free from dust and debris to ensure proper heat dissipation.
If any issues are observed, consult a qualified technician for diagnosis and replacement.
7. Troubleshooting
If your refrigeration unit is experiencing issues related to compressor startup, the start relay may be a contributing factor. Common symptoms of a faulty start relay include:
- Compressor Not Starting: The compressor hums briefly but does not start, or makes a clicking sound and then shuts off.
- Repeated Clicking: The relay clicks repeatedly without the compressor starting.
- No Compressor Activity: The compressor does not attempt to start at all when cooling is called for.
IMPORTANT:
- Before assuming the relay is faulty, ensure the power supply to the unit is stable and correct.
- Verify that the thermostat is set correctly and calling for cooling.
- Troubleshooting electrical components requires specialized knowledge and tools. It is strongly recommended to contact a certified refrigeration technician for diagnosis and repair. Attempting repairs without proper expertise can lead to further damage or personal injury.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | 117U6015/F394 |
| Brand | Danfoss (Secop) |
| Manufacturer | DANFOSS |
| Application | Refrigerator, Cooling Table, Heated Display Case (HST) |
| Compatible Fagor Models | AFP-1402, AFP-1603, AF-1603-C, AF-1604-C |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Operating Mode | Automatic |
| Manufacturer Reference | 4251391561571 |
9. Warranty and Support
Warranty information for the Secop Danfoss 117U6015/F394 Start Relay is typically provided by the point of purchase or the manufacturer. Please refer to your purchase documentation for specific warranty terms and conditions.
For technical support or further inquiries, please contact your authorized Danfoss distributor or a qualified refrigeration service technician.
You can also visit the official Danfoss brand store for more product information: Danfoss Brand Store





