rakpoczta wrote: I had exactly the same symptom E01, ecocondense gold 20 termet stove, except that I dismantled the stove anyway; for sure the spark generator works, the stove fires, you can see the flame in the combustion chamber. I suspected the flame control electrode because the stove fires but the computer does not see it. I wanted to order and replace it already, but here I found an idea with turning the plug, first thought what it has to do with it. After further attempts, not having the flame control electrode yet, I tried and what started, and so there were many more attempts each time he started. Why was I thinking, cool but there must be a reason for that, 5 years he worked so hooked and suddenly what happened ?? I started to measure the voltage on the flame control electrode on one connection of the plug and the other one, I did not notice a significant difference - the computer ?? As I write this, I don't know it yet.
It will be three weeks now and the furnace has never crashed with the E01 message. Out of curiosity, I switched it back to where it had been in the last five years, gave it three tries each time with E01 and Reset.
I will quote the previous statements;
"The furnace is an ionization sensor and it is therefore important that L is where it is supposed to be."
"Usually these are problems with ignition and more with flame detection. The ionization electrode in some boilers goes crazy when the current is not on this side"
"Most boilers require a phase at terminal L because this potential measures the current flowing through the flame into the housing"
"If there is a neutral wire on terminal L, the potential between the ionization electrode and the casing will be the same and the boiler will not detect the flame"
