Hi, New to the forum but a real problem with my controls. This is a new installation, I have a vaillant ecotec plus 624 system boiler with a vrc 430, vr61, vr81 for HT zone 2. The system is designed as in diagram 4 in the vr61 instructions. 3 x 2 port honeywell valves. I have a vr10 sensor connected to the black and orange harness at the back of the boiler ntc tank. The problem is hot water. It has a mind of its own. when setting up the vrc 430 you can test the actuators and they all work fine but put it in to auto or manual and nothing happens even when hot water storage is cold? I have changed the vr10 thinking it was the sensor but still no differance. Like i said the heating works fine. I also have installed secondary loop bronze pump controlled by a vr40 in side the boiler. Also not working? The vr10 sensor inside the tank is reading correct.
Any advice would be great. Regards Matt
Any advice would be great. Regards Matt