Home / Troubleshooting / DCM-PRO System How thick is the DCM-PRO Cable? DCM-PRO System The DCM-PRO Cable is 4.5mm thick. Installation Heater How does the DCM-PRO cable fit into the DCM-PRO mat? How thick is the DCM-PRO Cable? What if I damage the DCM-PRO during / after installation? Can the DCM-PRO be used in wet rooms? When should you use an SBR based primer with DCM-PRO? Where do I place the floor probe when installing the DCM-PRO ? When should I check my resistance readings for the DCM-PRO cables? How do I install the DCM-PRO Factory Joint? How long is the cold lead on the DCM-PRO Cable? What spacing should my DCM-PRO Cable be? Prepare Your Project Can the DCM-PRO system reduce the risk of my tiled floor developing cracks? Compatibility What floor finishes can be used with the DCM-PRO System? Troubleshooting Why is the DCM-PRO mat not sticking to the subfloor? Why is my floor not reaching the temperature set? Why does my thermostat trip when I switch on my Underfloor heating ? My thermostat says system is on but the floor is not heating up?