Central heating system not turning off/on with timer.
Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

6 posts   •   Page 1 of 1
Amanda2801
Labourer
Labourer
Posts: 2
Joined: Fri Nov 23, 2007 8:21 pm

Central heating system not turning off/on with timer.

by Amanda2801 » Fri Nov 23, 2007 8:38 pm

[b]My central heating system won't turn on or off with the timer. The valve has been replaced, and the cylinder thermostat replaced. Heating/water only works when the main power switch is turned on/off manually.The timer switch is working but not communicating witht the heating system? Any ideas? :?:
Amanda [/b]

htg engineer
Project Manager
Project Manager
Posts: 3256
Joined: Tue May 22, 2007 6:22 pm

by htg engineer » Fri Nov 23, 2007 10:31 pm

The timer switch is working ? do you mean you can turn heating on and off by the timer, but when set to timed it will not turn heating/water on or off ?

If yes then you need to replace timer.

marrtin
Foreman
Foreman
Posts: 374
Joined: Fri Oct 26, 2007 7:42 pm

by marrtin » Fri Nov 23, 2007 11:36 pm

Have you checked if a frost stat is over-riding the timer?

Amanda2801
Labourer
Labourer
Posts: 2
Joined: Fri Nov 23, 2007 8:21 pm

To htg engineer

by Amanda2801 » Sat Nov 24, 2007 8:41 am

The timer displays all times etc, but heating/water does not go on and off with set times, it has to be manually switched on/off with main power switch. Thanks for reply
Amanda

marrtin
Foreman
Foreman
Posts: 374
Joined: Fri Oct 26, 2007 7:42 pm

by marrtin » Mon Nov 26, 2007 9:31 am

IF the boiler always fires when the timer is in the off position, then either the timer itself is faulty, or a frost stat is set too high (or it's doing what it's supposed to if the boiler is in an outhouse or garage etc).

carol donegan
Labourer
Labourer
Posts: 1
Joined: Wed Nov 28, 2007 9:41 pm

by carol donegan » Wed Nov 28, 2007 9:50 pm

my heating comes on outside of the times set. the boiler and frost stat is in the garage.i've had a new timer put on but i still have the same problem. why is this?

6 posts   •   Page 1 of 1