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Embassy (Cosmogas) 45WN lock out code 47
Does anyone have any idea(s) what may be the cause of the L.47 Lockout code on a Embassy / Cosmogas 45WN unit. We've paid right at $900 for parts and labor and still have no hot water. To make matters worse it is a combi so while it is summer here in Alaska, it does get cool at night sometimes and nice to have house heat.
What we've tried:
Called local Alkota dealership and had the tech come out three times for a total right at $500.00 for a collective total of 2 1/2 hours of work. Bought $400.00 controller (logic) board (motherboard to me as I am a computer nerd) that the Alkota tech said we needed to buy. All of which provided hot water for less than 3 days and back to cold water.
In addition to changing out the controller board I've also switched out left and right igniter and the flame sensor. All to no avail. Sadly, when I called Alkota five times while sitting in the car in their parking lot since they no longer provide for a retail setting locally, Pam, hung up on me four of the five calls. So, it would appear they only want to take our money and don't want our business anymore since they appear to be incompetent and can't fix the problem.
Reset unit and it keeps going back to L.47 lock out code. Also, boiler never goes above 76° to 80° (before it goes to L.47 lock out) for domestic and I have house heat turned down and on hold so there is no call for house heat. We've been without hot water for 2 weeks now. Hoping someone can see in our clues above what might be the problem and point me in the proper direction so I can either fix the issue myself or hopefully find a competent boiler technician to do the job.
Thanks for any help that you may provide.
Anchorage, Alaska, USA