Customer Review / Testimonial

I installed an Eco-King C140 in November 2016. The system has had no issues until recently. I would occasionally get error code 8, flame fail 6 times. I had never witnessed the boiler going into this lockout before. I have done numerous auto calibrations and all the maintenance tips in the Eco-King YouTube video library. I am a gas fitter of 20 years but I was stumped. Reached out to Eco-King and Chad Euverman suggested that the symptom I described happens when the gas mix is either too lean or too rich. He recommended to run a gas combustion analyzer to confirm. I did so, as well as manual calibration last night. It turns out the boiler was just fine and problem-free, but the CO2 was low across the board! So far so good, no flame outs. Time will tell but I am confident that the issue is resolved. Thank you very much for all your help. The customer support at Eco-King is top notch!