Hi folks
Before I moved back home to look after my grandfather they hired a moron to replace the Honeywell hot water/heating timer because they wanted to programme the on/off for the hot water/central heating separately (the Honeywell would only let you set a double on/off time, then you flicked to Once or Twice on the water/heating controls).
There's now a Siemens controller in place that is quite frankly, awesome. It lets you set a 7 day/3 times a day timer for each. However...
Originally if power was going to the unit, then the boiler would fire and heat the hot water. Then if you told it to turn on the heating, the radiators would get hot. I, an inexperienced person have now changed some of the wiring (moved red from 1 to 3) so that when the power is active, nothing happens and if you turn the hot water on, the hot water gets hot. However, just turning on the central heating, does not heat the radiators, however if both are turned on, both the hot water and the central heating gets hot.
Behind the timer plate two cables are coming in, one from a fused switch and another. The fused switch has live and neutral, the other has blue, red and yellow. From the switch live and neutral are going to L and N on the Siemens panel, on the other cable blue is going to N, red is going to 3 and yellow is going to 4.
This is driving me crazy, I can't get hold of the guy the old folks had in (surprise surprise) and we can't currently afford to bring in a spark or a corgi. I'm not a buffoon with normal electrical wiring however heating systems are alien to me.
If it helps, we have an expansion tank for cold water and the radiators in the loft, a cylinder in the airing cupboard in the bathroom where there is a thermostat, there's a valve that moves when the central heating is activated in the same cupboard. I can provide pictures if necessary. The boiler is downstairs in an outside closet and it's all gas fired.
I appreciate any advice anyone can offer, thank you.
Before I moved back home to look after my grandfather they hired a moron to replace the Honeywell hot water/heating timer because they wanted to programme the on/off for the hot water/central heating separately (the Honeywell would only let you set a double on/off time, then you flicked to Once or Twice on the water/heating controls).
There's now a Siemens controller in place that is quite frankly, awesome. It lets you set a 7 day/3 times a day timer for each. However...
Originally if power was going to the unit, then the boiler would fire and heat the hot water. Then if you told it to turn on the heating, the radiators would get hot. I, an inexperienced person have now changed some of the wiring (moved red from 1 to 3) so that when the power is active, nothing happens and if you turn the hot water on, the hot water gets hot. However, just turning on the central heating, does not heat the radiators, however if both are turned on, both the hot water and the central heating gets hot.
Behind the timer plate two cables are coming in, one from a fused switch and another. The fused switch has live and neutral, the other has blue, red and yellow. From the switch live and neutral are going to L and N on the Siemens panel, on the other cable blue is going to N, red is going to 3 and yellow is going to 4.
This is driving me crazy, I can't get hold of the guy the old folks had in (surprise surprise) and we can't currently afford to bring in a spark or a corgi. I'm not a buffoon with normal electrical wiring however heating systems are alien to me.
If it helps, we have an expansion tank for cold water and the radiators in the loft, a cylinder in the airing cupboard in the bathroom where there is a thermostat, there's a valve that moves when the central heating is activated in the same cupboard. I can provide pictures if necessary. The boiler is downstairs in an outside closet and it's all gas fired.
I appreciate any advice anyone can offer, thank you.