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How to replace a dry motor for a Sofatec pool cover

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How to replace the dry pit UNICUM motor of your SOFATEC pool cover

If you own a SOFATEC pool cover equipped with a dry pit motor and it is showing signs of wear, this practical guide explains how to replace it easily and safely.
We will detail the steps, the necessary equipment, and the appropriate references so that your cover regains optimal operation.

 

Which dry pit motor to use for your SOFATEC cover?

The choice of motor depends on the size and weight of your submerged or semi-submerged cover:

For power supply and control, use the UNIBOX 450 control box, designed for UNICUM-compatible dry pit motorizations. This box manages the 24 V power supply and allows control via remote or wall-mounted unit.

Why replace a dry pit motor?

The dry pit motor ensures the automatic opening and closing of the cover while being protected from water in a dry pit or compartment. Over time, this motor may show several signs of failure:

  • Partial or total blocking of the cover during rolling or unrolling.

  • Unusual noises, vibrations, or jerking during startup.

  • Random control or lack of response via the remote or control unit.

  • Incorrect limit switches or a cover that no longer stops at the end position.

Replacing the motor guarantees the safety and reliability of the system, prevents premature wear of the winding shaft and mechanical elements, and restores smooth and silent operation in accordance with SOFATEC specifications.

Materials and tools required for replacing your dry pit motor

Before starting, make sure you have:

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Step 1: Secure the pool and turn off the power

  1. Turn off main power supply at the panel and the cover control box.

  2. Ensure the cover is completely closed.

  3. Protect the area around the pool to prevent any accidents.

Step 2: Access the dry pit motor

  • Open the dry pit cover provided for this purpose on the Fluidra pool cover.

  • Check that there is no stagnant water, debris, or corrosion — the motor must be in a "dry pit" above the water level, as recommended by Fluidra. Fluidra Industry+1

  • Locate all the fasteners holding the motor to the cover shaft as well as the wiring (24 V supply, limit switches, control link).

  • Tip: before disconnecting anything, take a clear photo of the wiring and component positions to guide reassembly.

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Step 3: Disconnect and remove the motor

  1. Carefully disconnect all cables: power supply, limit switches, connection to the winder.

  2. Remove the fasteners holding the motor to the shaft.

  3. Remove the motor and inspect:

    • The shaft to check that it is not bent.

    • The bearings to ensure they rotate freely.

    • The coupling to detect cracks or excessive play.

Step 4: Install the new replacement motor for your pool cover

  • Position the new motor in perfect alignment with the winding shaft in the dry pit.

  • Secure it firmly with the provided screws and brackets.

  • Reconnect all cables according to your photos (power supply, limit switches, control link).

  • Install the control box and connect it correctly to the motor.

  • Adjust the high and low limit switches to ensure smooth movement of the cover.

  • Check that the shaft and motor are properly aligned: any misalignment can cause blocking or premature wear.

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Step 5: Tests and checks of the UNICUM DL6010 / DL7710 dry pit motor

  • Restore the power supply and perform several opening and closing cycles of the cover.

  • Check that the cover goes up and down smoothly, without noise or blocking.

  • Ensure the pit remains dry and sealed, with no water infiltration.

  • Verify the correct operation of the limit switches and the remote control.

 

Step 6: Maintenance after replacement

To prolong the motor’s lifespan:

  • Regularly clean the dry pit to prevent the accumulation of leaves or debris.

  • Perform an annual check of the motor and control box.

  • Keep a record of interventions and photos for tracking and maintenance.

  • Follow the manufacturer’s instructions for maintenance and winterizing to extend the life of the motor and cover.

Replacing the dry pit motor of your Sofatec cover with an UNICUM DL6010 or DL7710 and the UNIBOX 450 control box is simple.

If you follow the described steps: securing, disassembly, installation, adjustment, and verification.

With regular maintenance, your Abriblue cover will regain smooth and reliable use, allowing you to fully enjoy your pool in complete safety.

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Obtain a dry pit motor as well as a control box adapted to your cover

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See the UNICUM motor for dry pit
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See the UNIBox 450 control box

FAQ 

Q: Can I install a non-UNICUM motor on a SOFATEC cover?
A: It is strongly recommended to use a compatible model, such as UNICUM DL6010 or DL7710, which are adapted to the mechanical and electrical constraints of SOFATEC covers.

Q: Where should the control box be installed?
A: The box must be placed in a dry and ventilated technical room, at a regulatory distance from the pool, and accessible for maintenance. It must be correctly protected and compliant with electrical standards.

Q: My cover blocks after motor replacement — what should I do?
A: Check the alignment of the shaft, the tightening of the fasteners, the motor/control wiring, and the adjustment of the limit switches. Misalignment or incorrect adjustment is often the cause of blocking.

Q: What maintenance is required for the SOFATEC dry pit motor?
A: Regular cleaning of the pit/box, annual check of the motor and its components, control of the sealing, bearings, and limit switches. Regular maintenance ensures optimal longevity.

Q: How can you recognize a motor failure?
A: Frequent blocking, unusual noises or vibrations, random or no response to control commands, incorrect limit switches, or a cover slat system that no longer stops correctly.

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