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EKO RKU-2100 Controller Stop Switch Failure

Post in 'The Boiler Room - Wood Boilers and Furnaces' started by HeatFarmer, Mar 6, 2013.

  1. HeatFarmer

    HeatFarmer Member

    Joined:
    Sep 22, 2011
    Messages:
    144
    Loc:
    Montville, Maine
    It's been iffy for weeks, but today my EKO Controller Stop switch failed, which means I can't get it out of Fuel Mode.

    Anyone else have this problem before?

    I took the controller apart to see if there was something loose, but no..... Nothing apparent, and nothing which suggests I could jerry-rig and bypass the faulty switch. Apart from that, the controller has served us well.

    Any suggestions on how to proceed. Thank God it's March and the weather is above freezing, but I still need to run the boiler in a few days for hot water.......

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  2. stee6043

    stee6043 Minister of Fire

    Joined:
    Aug 22, 2008
    Messages:
    2,382
    Loc:
    West Michigan
    I'd suggest you buy a new one either from New Horizon or your local dealer. Shoot, buy two.

    On the EKO I see the blower and the controller as the only two risk items in terms of operations. We can make our own nozzles and refractories if required. And the rest of the unit seems to be pretty well bullet proof.

    I plan to order a replacement controller and blower someday soon even through mine are still working fine after 5 seasons. I hate spending money when I really don't need to but this is something I've wanted to do for a few years now...
  3. The controller should be under warranty.

    But If you need heat immediately an old extension cord and a couple wire nuts should get the fan going for you. The controller might still turn on your circulator or you might need to get a second extension cord...


    /legal disclaimer

    This is not safe. You will have to babysit the boiler to make sure nothing overheats.
  4. henfruit

    henfruit Minister of Fire

    Joined:
    Nov 27, 2007
    Messages:
    712
    Loc:
    New Hampshire-Maine border
    AHONA has a controller that will replace the eko one.
  5. HeatFarmer

    HeatFarmer Member

    Joined:
    Sep 22, 2011
    Messages:
    144
    Loc:
    Montville, Maine
    Thanks for the replies....

    What makes the AHONA controller different than the PWKEY one? I've also noticed that both the AHONA sold controller and the newer version of the RK2100 both have lower set points on boiler pump launch temp--160deg instead of 170.... not a huge change, but a bit annoying since 170 helps keep heat in storage longer.

    Meanwhile, I have temporarily fixed my controller by taking it apart and putting it back together again.... Found out while it was in pieces that there really isn't much to fix on the faulty switch--tested it with a meter and found it still worked for the most part. I blew quite a bit of dust out of the unit. Put the whole thing back together again and it works fine now that it's powered up....When in doubt.....
  6. henfruit

    henfruit Minister of Fire

    Joined:
    Nov 27, 2007
    Messages:
    712
    Loc:
    New Hampshire-Maine border
    The AHONA one is not PWKEY.Launch temp can be set any where you would like it to be.If you have storage and hold your launch temp till 160 and then let it go,what happens to all that hot water when it hits storage.It gets diluted to a lower temp.
  7. ihookem

    ihookem Minister of Fire

    Joined:
    Jan 25, 2009
    Messages:
    594
    Loc:
    Allenton, Wisconsin
    How much is a new controller from AHONA???

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