I have an EKO 40 that is about 4 years old and just started using it for the season this past week. The problem I am having is that no matter where I set the water temperature it seems to keep heating well beyond that. I first had it set for 180*F and it would go up to 200*F and then go into E-2 (overheat condition). I tried dropping the water temp to 175*F and it still goes up to 195*F. It appears my circulator is running as the pipes are hot coming and going from the boiler. Any ideas or suggestions as to what I should try or look for? Thanks for any help. Not sure if it has any bearing, but I have almost no gasification.
EKO 40 Overheating?
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maple1
Minister of Fire
Yes, it is now. However, the other day my temperature was going up on the boiler and nothing was coming out of the forced hot water baseboards. It did this for a short time and then corrected. It has not happened again. Also, for what it's worth, I opened my fan openings all the way and was actually getting what appears to be good gasification. I have my water temp set at 175*F and it seems to be holding around 180*F.
Not getting gasification? How does your nozzle look? How dry is your wood? If its wet, that can cause a host of issues.
As far as the water not circulating could be a number of things. Can you hear water in your pipes? If so, could be some air that needs to be purged.
As far as the water not circulating could be a number of things. Can you hear water in your pipes? If so, could be some air that needs to be purged.
If you're getting gasification the damper must be closing. Sounds like a water circulation problem. Is the return protection thermostat opening and closing properly?
Not sure where the return protection thermostat is. The damper does seem to close and my wood is very dry. Another question, what is the normal fluctuation temperature range? Today, I am set at 175*F and the outdoor temp is fairly warm (35*F) so my system is idle a good bit of the time. I am seeing the temp go to 188*F while idle. Is this within the expected range. I probably never paid much attention because I can't remember the last time I had an E2 error, prior to the other day. Thanks for all the help.
Yes you the temp will creep up if you are iding.
My vote is also for a air bubble or a valve that got closed/open and accidently not returned to it former position.
Good luck.
My vote is also for a air bubble or a valve that got closed/open and accidently not returned to it former position.
Good luck.
Check that the controller is sending the right power to the pump. Might not be enough power to engage the pump sometimes. common problem
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