Automatic Pool Cover Replacement: Fabric, Slats & Motors

Choose replacement fabric by its track and edge construction, replacement slats by their profile and end fittings, and a replacement motor by its drive family, shaft connection and controls. Pool width, colour or a torque number alone leaves important interfaces unchecked.

For a Gulf villa, hotel or compound pool, begin with the installed system reference and its service manual. The examples below show how Cover-Pools, DEL and SIREM document those interfaces, so the contractor can define the repair scope before ordering.

Updated October 2026.

Which part of the cover needs replacement?

Separate damage to the cover surface from a fault in the drive. Cracked fabric or a broken slat calls for a material and fitment inspection; a stationary or unevenly moving cover also needs checks of its tracks, transmission and controls.

• Fabric cover: match the side-edge construction, track system, leading-edge attachment and ordered dimensions.
• Slatted cover: match the complete profile, end cap or flange, finished length and locking system.
• Drive assembly: identify whether the system uses an above-ground tubular motor, an immersed motor or an external electric/hydraulic mechanism before choosing a part.

Keep the pool secured during the repair. The Cover-Pools T4 owner manual, document 800210 REL-0003, directs users to isolate power at the mains circuit breaker before maintenance, keep clear of moving parts, and leave complex repairs to an authorised service technician. Recommission the cover under the installed system's instructions before returning it to service.

Fabric: separate rope diameter, webbing width and leading-edge attachment

A rope or polymer bead retains the side edge in its matching track; webbing is the wider reinforced strip connecting that edge to the fabric. Record them separately, then identify how the front of the cover attaches to its leading-edge bar.

Coverstar Central's features page describes a heat-sealed construction that replaces rope with a flexible polymer bead. Its replacement form separately distinguishes a looped or beaded leading-edge bar. A side-edge bead and a leading-edge attachment therefore need their own identification.

The Cover-Pools catalogue dimensions above illustrate why a webbing width cannot stand in for a rope diameter. Match the replacement to the installed track, guides and edge construction. For the pool survey, use the pool-cover measurement guide and the OEM order drawing; the old sheet can have changed shape through wear and shrinkage.

When should the fabric be inspected for replacement?

Inspect cracks, peeling, exposed reinforcing mesh, missing stitches and bunched webbing promptly. Coverstar Central identifies these as deterioration signs on its replacement-cover page. The T4 owner manual calls for thorough inspection at least two or three times a year, including the stitching beside the tracks and wear in the track opening.

For Gulf maintenance planning, record condition alongside sun exposure, water treatment and service history; see fabric and slat lifespan under Gulf UV. Follow the installed system's cleaning instructions: the T4 manual prohibits grease or silicone on its cable, rope, webbing and tracks. Remove standing water before operating that cover and maintain its specified pool water level.

Slats: match the profile before selecting an end cap

A matching colour is only a finish choice. Identify the slat cross-section and its end fitting first. The DEL 69 mm and opaque PVC 84 mm brochures show different end constructions, so use the document for the installed profile when ordering.

Read the cap class without double-counting the ends

In these DEL documents, the standard cap or flange class is 2.50 cm, S is 1.50 cm, and XL is 3.50 cm. The smaller and larger classes differ from standard by 1 cm at each changed end. Record the class on the left and right separately.

Mark whether a measured slat length runs across the bare body or across the fitted ends. Use the matching assembly drawing to convert between those boundaries, and retain an overall measurement as an overall measurement. The cap's insertion or overlap geometry determines its exposed contribution to length.

DEL asks for a pool drawing measured every 1 m. Both cited brochures state a wall-to-cover gap of less than 70 mm for their NF P90-308 claim; the L84 installation notice specifies a total space between the wall and the cover of ≤70 mm. Apply the matching OEM instructions to the completed assembly, including its locking kits and water-level conditions. For the opaque PVC 84 profile, the brochure gives an in-ground application, a maximum pool width of 5.00 m, and a minimum slat width of 2.50 m for its stated French safety-standard compliance.

Overflow details also depend on the profile. The 84 mm brochure conditions its overflow-pool claim on a Vitalia INFINITY-type device that automatically lowers water by at least 2 cm when the cover is closed; the 69 mm brochure excludes overflow installations from its stated compliance scope. Retain the original system's applicable instructions when changing parts. For material selection, compare PVC and polycarbonate slats alongside the project's seasonal temperature requirements.

Motors: match the drive family, shaft and limit controls

Identify the nameplate and controller before comparing torque. SIREM's MU-5059-1-00 covers above-ground MH2/MH2 Light motors supplied at 12 V DC, while its IM_300+e page describes an immersed 24 V DC, IP68 motor with a 316L shaft and electronic limits. These are distinct drive arrangements.

For the MU-5059 assembly, the fastening interface is a 16 × 16 mm square. The document specifies a steel fastening plate at least 5 mm thick and a 16 × 16 mm square opening in that plate, with a tolerance of 0/+0.2 mm. It describes versions with an electronic revolution-counter card that learns the open/closed positions, and versions without the card using manually defined stops. Check the installed version as well as the coupling.

Keep each SIREM specification sheet together

The two MH2 Light documents agree on a 12 V DC supply and 80 Nm maximum torque, but differ on current, speed and duty. Match the serial/nameplate record to the applicable document before specifying the replacement. In the October sheet, Ø7 mm describes the cable; the shaft is 16 mm square.

MU-5059 also requires a full-load cable voltage drop below 1.5 V and states a working temperature above 0°C and below 40°C. The October Light sheet states 10–40°C. For a Gulf installation, the service technician should check the actual motor location against the applicable temperature limits and verify the loaded supply, rather than using pool area as a torque-sizing shortcut.

For an immersed SIREM installation, check the motor and control-box pairing together. The Coveo A4-NT-5094-2-04 manual distinguishes 120 Nm and 300+ motor settings and requires the correct travel-limit setup. Its manual/manual and auto/manual operating modes use maintained actuation for closing under the safety provision it cites. Have the installer preserve the specified closing control, visibility of the pool and end-position behaviour when recommissioning.

An external electric or hydraulic mechanism requires its own motor, transmission and protection checks. Cover-Pools' Save-T shear-pin instructions distinguish Model 1 and Model II pin arrangements and require the correct replacement pin size. Its newer drives use different protection arrangements. A stalled cover therefore warrants system-specific diagnosis before a motor is ordered; avoid increasing protection settings to force it through an obstruction.

Define the repair scope before placing the order

A component replacement is appropriate when the replacement and retained parts share the required interfaces and the retained hardware passes its service inspection. A change to the transmission may require several matched parts: the Cover-Pools rope-and-cable guide requires gliders, guides, pulleys and reels to change together for its Underside-track rope-to-cable conversion.

For slats, retain the profile-specific end fittings and locking arrangement. For a motor, include any required coupling, controller compatibility and limit-setting work in the replacement scope. This gives the contractor a usable parts specification and makes the site labour scope clear.

Continue through the pool-cover replacement page for the existing replacement enquiry process. Keep the identified assembly and its matching OEM document together through quotation, supply and installation.

Sources

Updated October 2026. Product examples follow the documents identified above and below.

• Cover-Pools: T4 owner manual, 800210 REL-0003, parts guide and webbing construction.
• Coverstar Central: features, replacement form and fabric inspection signs.
• DEL: 69 mm slats, code 03-22, opaque PVC 84 slats, code 01-23 and L84 installation notice.
• SIREM documents hosted by Kretzschmar: MU-5059-1-00, 13 November 2009 and MH2 Light 80, October 2009; SIREM: immersed motor IM_300+e.