potterton... so cold...
Discussion
Right.. bad.. been away for a few days & shut the heating & water down. Back now.. boiler has been trying it's damdest to start for last 45 mins but no go..just clicking & failing. There's plenty of LPG in the tank in garden..cooker starts fine.
Is there anything that can be done to help it start ?! Boy my hands are cold typing soooo sloowwwwww
Ed
Is there anything that can be done to help it start ?! Boy my hands are cold typing soooo sloowwwwww
Ed
edt said:
Right.. bad.. been away for a few days & shut the heating & water down. Back now.. boiler has been trying it's damdest to start for last 45 mins but no go..just clicking & failing. There's plenty of LPG in the tank in garden..cooker starts fine.
Is there anything that can be done to help it start ?! Boy my hands are cold typing soooo sloowwwwww
Ed
This happened to mine. It's a common failure I think.
Broadly the sequence of events is as follows;
Switch boiler on.
Ignition spark repeats (that's the clicking).
Fan starts.
Once the fan has started, the gas valve for the pilot light opens.
Once the pilot is alight, the thermocouple heats up.
Once the thermocouple is hot, the sparks stop and, the main gas valve opens if the boiler thermostat is cold.
If the main gas valve opens then..... Whumpf.
You should be able to tell what the problem is from what actually happens.
With mine the fan wasn't starting because the controller was knackered. New controller was required.
>> Edited by dilbert on Thursday 29th December 16:44
>> Edited by dilbert on Thursday 29th December 16:45
What model is it? I doubt it has a thermocouple. The clicking sounds like the high-tension coil for electronic ignition.
It sounds like it is more likely to be the pressure switch sticking and not proving the fan. Try tapping it or even blowing into the ports to get it to click. Test with meter if you have one....BUT make sure you know which terminals and which ports the tubes attach to.
>> Edited by ferg on Thursday 29th December 17:13
It sounds like it is more likely to be the pressure switch sticking and not proving the fan. Try tapping it or even blowing into the ports to get it to click. Test with meter if you have one....BUT make sure you know which terminals and which ports the tubes attach to.
>> Edited by ferg on Thursday 29th December 17:13
garyhun said:
I know it's no help but for future reference...you should never shut the system and water down if going away for just a few days. My plumber told me so as it often fu**s everything up. As the saying goes...if it aint broke, don't turn it off!!!
I agree.. the savings you made switching it all off will be negated by your thermostat working like crazy to heat everything up again. its like shutting down your car engine in idle and then restarting it..waste of fuel and not energy efficient. If I do anything, I will turn it down to 17celcius if away for a week, this ensures not all heat leaves your walls and house, keeps dampness at bay and keeps everything flowing.
ferg said:
What model is it? I doubt it has a thermocouple. The clicking sounds like the high-tension coil for electronic ignition.
It sounds like it is more likely to be the pressure switch sticking and not proving the fan. Try tapping it or even blowing into the ports to get it to click. Test with meter if you have one....BUT make sure you know which terminals and which ports the tubes attach to.
>> Edited by ferg on Thursday 29th December 17:13
Did a bit of nosing, and it seems that you're right. The pilot isn't permanent, so there is no thermocouple. I'd say, as you have already, that the pressure sensor for the fan is suspect.
LRdriver II said:
I know it's no help but for future reference...you should never shut the system and water down if going away for just a few days. My plumber told me so as it often fu**s everything up. As the saying goes...if it aint broke, don't turn it off!!!
I agree.. the savings you made switching it all off will be negated by your thermostat working like crazy to heat everything up again. its like shutting down your car engine in idle and then restarting it..waste of fuel and not energy efficient. If I do anything, I will turn it down to 17celcius if away for a week, this ensures not all heat leaves your walls and house, keeps dampness at bay and keeps everything flowing.
I shall NEVER forget this...
Parrot of Doom said:I don't want to teach anyone to suck eggs, but this is why boilers (particularly conventionally flued boilers) should be serviced once a year. Lint in burner intakes leads to incomplete combustion which leads to CO problems.......... Pet owners beware.
Is the pilot light its normal size? If its smaller (and not heating the thermocouple) there could be a constriction somewhere. Similar thing happened to my gas fire (flueless unit), a gauze had fallen off an air intake at the bottom, and a load of cat hair got dragged in there
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