Dear All,
We have an old Potterton Netaheat Electronic 10-16. The boiler is wired through a Randall 3060 timer and a mechanical thermostat.
We have hot water when the timer is set to hot water or set to Central heating/ Hot water options. But no Central Heating (non of the radiators getting heated or pipes getting heated) when set to Central Heating options (H on/ W on, H Once/W Once, H Twice / W Twice etc.) . Boiler fires up without any problems.
Tried setting the thermostats (mechanical thermostat and the thermostat in the boiler) to full but still no central heating. Also tested the mechanical thermostat and it is fine. No electrical immersion heaters connected to the hot water tank. One issue though, we have not flushed the system for a quite long time. We did not have any issues with this boiler for a long time and therfore do not want to replace it.
Please advise us on the possible problems.
Many thanks
We have an old Potterton Netaheat Electronic 10-16. The boiler is wired through a Randall 3060 timer and a mechanical thermostat.
We have hot water when the timer is set to hot water or set to Central heating/ Hot water options. But no Central Heating (non of the radiators getting heated or pipes getting heated) when set to Central Heating options (H on/ W on, H Once/W Once, H Twice / W Twice etc.) . Boiler fires up without any problems.
Tried setting the thermostats (mechanical thermostat and the thermostat in the boiler) to full but still no central heating. Also tested the mechanical thermostat and it is fine. No electrical immersion heaters connected to the hot water tank. One issue though, we have not flushed the system for a quite long time. We did not have any issues with this boiler for a long time and therfore do not want to replace it.
Please advise us on the possible problems.
Many thanks