1) Been trying to understand the functioning of combi boilers, I`ve got the basic idea, but do feel that I do not fully understand the linkage of the thermostat and the thermister.
Does the thermister control the "on/off" of the ignition , with the temperature first being set by the " temperature contol knob"on the boiler casing, with the thermostat being the "last resort safety device" set to a higher temperature than that of the max. temp.setting of the control knob on the casing .
2) I have a problem with my boiler after cold start-up. Sometimes it turns off after a few minutes (well before the rooms are warm)and then restarts and works for say twice as long and then turns off, then repeats and then gets to its` "normal" cycle.
On the next cold start-up, it might behave properly and go into its "normal" cycle straight away.
My thinking is that the thermister is faulty , can you experts help with this problem.
Thank you
2
Does the thermister control the "on/off" of the ignition , with the temperature first being set by the " temperature contol knob"on the boiler casing, with the thermostat being the "last resort safety device" set to a higher temperature than that of the max. temp.setting of the control knob on the casing .
2) I have a problem with my boiler after cold start-up. Sometimes it turns off after a few minutes (well before the rooms are warm)and then restarts and works for say twice as long and then turns off, then repeats and then gets to its` "normal" cycle.
On the next cold start-up, it might behave properly and go into its "normal" cycle straight away.
My thinking is that the thermister is faulty , can you experts help with this problem.
Thank you
2