Potterton Netaheat Profile 40e Tripping! PROBLEM Plz HELP
- Thread starter EN4
- Start date
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UPDATE.
Pump was changed today and was advised to leave the boiler stat @ Max. Both the central heating and hot water have been on fine for most of the day.
BUT,
Whenever I turn off the central heating via the control unit, the boiler trips after about 20 mins!
If I let it cool right down, I can reset the trip switch and boot up again. The boiler then stays on until I turn off the central heating. so on and so forth...
Oh and It might be unconnected, but the last Rad on the system, the one nearest to where the system was drained from is stone cold!
Has anyone any ideas what the cause maybe???????
Next, I try leaving both the hot water and the heating on constant and just turn the heating right down via the room stat too see what happens
HELP
Pump was changed today and was advised to leave the boiler stat @ Max. Both the central heating and hot water have been on fine for most of the day.
BUT,
Whenever I turn off the central heating via the control unit, the boiler trips after about 20 mins!
If I let it cool right down, I can reset the trip switch and boot up again. The boiler then stays on until I turn off the central heating. so on and so forth...
Oh and It might be unconnected, but the last Rad on the system, the one nearest to where the system was drained from is stone cold!
Has anyone any ideas what the cause maybe???????
Next, I try leaving both the hot water and the heating on constant and just turn the heating right down via the room stat too see what happens
HELP
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Obviously there is still a problem with boiler/system, its a shame that whoever changed your pump today didn't spend a few moments checking over some pretty basic stuff.
What do you suggest to be the problem?
What checks could/should have been carried out?
Thanks
EN4
Few checks
1) Is the pump wired too and controlled by the boiler.
2) Is the pump overrun stat working correctly (unlikely fault from whats been described)
3) Does the system require & have a by-pass, is it set correctly.
4)Is main boiler stat within range.
5) System water quality.
Sounds a lot but all quick and simple to test/verify.
1) Is the pump wired too and controlled by the boiler.
2) Is the pump overrun stat working correctly (unlikely fault from whats been described)
3) Does the system require & have a by-pass, is it set correctly.
4)Is main boiler stat within range.
5) System water quality.
Sounds a lot but all quick and simple to test/verify.
Many thanks for all that. I have been doing some crude basic checks all day and can now report the following, in the hope it might shed some light on what the cause of the problem is!
1. Heating & Hot Water on together = Good, until I turn off the heating (via control unit or room stat) and the boiler trips after 20 mins. BAD
2. Hot water off and heating on = Good.
3. Hot water and heating off = Good.
4. Hot water off and heating on via timer = Good.
5. Heating off and hot water on via timer = Good
Any help and assistance appreciated. ?
circulation/by-pass issue, contact your pump installer and inform him/her that there is still an issue with boiler locking out. I suspect it has some bearing on why the pump failed initially.
Obviously you are looking at an additional charge to rectify faults.
Obviously you are looking at an additional charge to rectify faults.
Just had some success with the hot water set to constant and the heating set via the timer. So may just regulate that way for now?
Any idea on the best to to get my last Rad working. Its the last one on the system, near the drain point. Its full with water, but its and the feeder pipes to it are cold?
Any help appreciated. Thanks
EN4
Any idea on the best to to get my last Rad working. Its the last one on the system, near the drain point. Its full with water, but its and the feeder pipes to it are cold?
Any help appreciated. Thanks
EN4
turn boiler stat down to 2
turn off hot water at prog/timer
turn on heating at prog/timer/stat
turn off all working rads
turn on (check both ends) of rad not working
leave it to do it's stuff, if not successful after 1 hr call a heating engineer
turn off hot water at prog/timer
turn on heating at prog/timer/stat
turn off all working rads
turn on (check both ends) of rad not working
leave it to do it's stuff, if not successful after 1 hr call a heating engineer
Fantastic. Thanks Heatingman.
Its seems to be working. I've had the Rad on for 50 mins and its warming up nicely. Still not 100% as hot, but getting there. Shall I Leave it for another hour? will that be okay?
Once I have put the boiler back up to 4, hot water back on and all ther other Rads back open. Should that be a permanent fix?
You are a star m8
fingers crossed ay!
Hiya..
Just opened all Rads, turned boiler back up to 4, left the hot water off and the last Rad started cooling down, as did its feeder pipes.
Could this be anything to do with the plumber setting the new pump to position 1. The old pump used to be at 2, but he said as this one is new, leave it at 1.
Any help and points, appreciated as always.
Cheers
EN4
won't hurt turning pump speed up a notch.
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