Description
Amber / DEVI Electric Underfloor Heating Cable Repair Kit — Fix Cable Breaks Without Full Replacement
A break in your underfloor heating cable does not have to mean a full mat or cable replacement. The Amber / DEVI Electric Underfloor Heating Cable Repair Kit contains everything needed to repair a cable break in a DEVI or Amber heating mat or cable quickly, safely, and professionally. Compatible with DEVI heating mats and Amber electric underfloor heating systems. At £22, it is a cost-effective alternative to replacing the entire heating mat.
⚠️ Important safety notice. Repairing a heating mat may result in a changed output. Do not repair across cable loops. All repair work must be carried out by a qualified electrician. If in doubt, consult a Part P registered electrician before attempting any repair.
What’s in the Kit
- 4 × Rivets
- 2 × Kynar heat-shrink tubing — 1/8", 25mm
- 1 × Cold tail — type DSWB-10, 500mm
- 2 × Shrink tube — 8/2, 100mm
- 2 × Shrink tube — 4/1, 35mm
Technical Specification
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Brand: Amber / DEVI
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SKU: 18055510
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Compatible with: DEVI and Amber electric underfloor heating mats and cables
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Application: Repair of single cable breaks in heating mats and loose-lay cables
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Restriction: Do not repair across cable loops
Compatible Heating Products
Frequently Asked Questions
Can I repair my underfloor heating cable myself?
The physical repair using this kit requires careful work with heat-shrink tubing and rivets. However, all electrical work must be carried out by a qualified, Part P registered electrician. This includes testing the cable before and after repair, and reconnecting to the thermostat. Do not attempt electrical connections yourself.
What types of cable break can this kit repair?
This kit is designed to repair a single break in a heating cable — for example, where the cable has been accidentally cut or damaged during installation or subsequent floor work. It is not suitable for repairing across cable loops, as this would alter the electrical resistance and output of the mat, creating a safety risk. If you have multiple breaks or damage across a loop, a full mat replacement may be required.
Will repairing the cable affect the heating output?
Yes — repairing a heating cable may result in a changed output. The repair introduces additional resistance at the join point, which can slightly reduce the heat output in the repaired section. For most single-break repairs this change is minor, but it is important to have the repaired mat tested by a qualified electrician before returning it to service.
How do I know if my cable is broken rather than a thermostat or sensor fault?
A broken heating cable typically shows as a complete loss of heating with no error code on the thermostat, or an open-circuit fault reading. A thermostat or sensor fault usually shows as an error code (E0, E1, etc.) with the heating not responding correctly. A qualified electrician can test the cable resistance with a multimeter to confirm whether the cable is broken. If the fault is a sensor, see our Amber 3m Replacement Floor Sensor or DEVI 3m Replacement Floor Sensor.
Is this kit compatible with all DEVI and Amber products?
This kit is compatible with DEVI and Amber electric underfloor heating mats and cables, including the Amber 150W Concrete Mat, the Amber 100W Timber Mat, and the Amber 10W/m Heating Cable. If you are unsure whether this kit is suitable for your specific product, call us on 01603 381095 before ordering.
Can I order if the item shows as out of stock?
Yes — this product is available to order even when stock shows as zero. Please allow additional lead time and contact us on 01603 381095 to confirm availability.
