We normally have our central heating system serviced annually as part of our central heating insurance.
At the end of November we noticed we didn’t have any hot water. We called the heating engineers and they came and changed our heating control/timer (which tells the boiler when to come on or off) as it was very old. A few days later we still had no hot water and this time when they came back they said it was the valve and then changed it but they noticed that the pipe work is incorrectly piped to the 3 port valve.(not sure what this means).
We were told we need to re-pipe which will be done in January at our annual service for a fee as this is not covered by our insurance. The hot water was now working and everything seemed okay although our radiators were now so noisy that you can hear the water filling the pipes, tanks and radiators when the central heating came on and similarly hear it when it drains the radiators when it goes off.It was never this noisy before..
Unfortunately we went away on holiday for a few weeks. On our return, our neighbour told us that our overflow had been leaking for sometime. It leaks constantly and when my husband went to the loft he could not see anything. We tried various things and found that it only stopped leaking when the boiler is not on. The heating engineers are not coming until the 13th Jan.
Questions:
• Is it dangerous to leave the heating on until the engineer’s visit in a few weeks? The house is freezing cold and we don’t know what the damage would be if we still leave the central heating on. Can it create any lasting damage to the floor boards, ceiling, loft etc
• Is this an expensive problem to fix
• I think this sudden leakage has something to do with the new 3 port valve fitted because the new 3port was fitted to our pipe work which is incorrectly piped to the 3 port valve (as noted on our engineer notes, though not sure what this means).
Any advice on what could be the problem would be greatly appreciated
