Whats wrong I have cold spots in my underfloor heating? Comments Off on Whats wrong I have cold spots in my underfloor heating? 18 Jan 2016 Vote Up 0 Vote Down Answered Public Public Private Underfloor Heating Anonymous asked January 18, 2016 Hi There, I have cold spots on my floor, What is wrong? 1 answer Vote Up 0 Vote Down Public ⋅ January 19, 2016 Cold spots can be an issue with the pump or manifold or air in the system. Its a good idea to book a service in so we can quickly diagnose the problem. #1 Please login or Register to Submit Answer