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Effective immediately, the Schluter-DITRA-HEAT-E-HK heating cable testing and warranty requirements have changed as follows:

Test 1: Conductor Resistance - Required

Test 2: Continuity between Conductor and Ground Braid - Required

Test 3: Insulation Resistance - Recommended, no longer required

Test 4: Temperature Sensor - Required

While the insulation resistance test (Test 3) is no longer required, it is strongly recommended. This test is performed to help detect very small breaks throughout the heating cable insulation, which often remain undetected during the continuity test. Even though the breaks are small, they are likely to cause a current leakage to ground, which will result in the thermostat ground-fault circuit interrupter "GFCI" disabling the system. Therefore, customers that perform the insulation resistance test (Test 3) will extend their system warranty coverage by 5 years for a total of 15 years.

The following table provides an overview of the term and resolution for valid claims under the Schluter-DITRA-HEAT and Schluter-DITRA-HEAT-TB Limited Warranty* depending on which heating cable tests are conducted.

Test Conducted Years Resolution
None 0 - 25 Cable replacement (prorated)
Test 1: Conductor Resistance +
Test 2: Continuity between Conductor and Ground Braid +
Test 4: Temperature Sensor
First 10 years
11 - 25
Assembly repair/replacement (labor & materials)
Cable replacement (prorated)
Test 1: Conductor Resistance +
Test 2: Continuity between Conductor and Ground Braid +
Test 3: Insulation Resistance +
Test 4: Temperature Sensor
First 15 years
16 - 25
Assembly repair/replacement (labor & materials)
Cable replacement (prorated)

Reminder: To receive full system warranty coverage the applicable heating cables tests must be conducted and the warranty registration submitted online or returned by mail.

*The complete DITRA-HEAT and DITRA-HEAT-TB 10-Year Limited Warranty, including coverage, conditions, disclaimers, etc. may be accessed on the Schluter website: Here