Good morning,
De Dietrich MCR 2 24/28 MI boiler from 2010.
A typical fault is E5, E4 - several times a day, and the worst occurs at night and while showering.
I invited a service technician 1 - He came, promised to fix it, but did not show up again on the promised date.
I invited service technician 2 - He came and did the service, and after 2 weeks the problem returned.
I talked to service technician 3 - he recommended replacing the ignition electrode first, and if that doesn`t work, replacing the chimney, transformer, gaskets and motherboard.
I replaced the ignition electrode - the original one a month after "service no. 2" had a 6-7 mm gap.
All connectors checked and cleaned, power socket polarity OK.
Nothing helped.
What helps???
Strong blowing of the combustion chamber housing several times before and after replacing the electrode immediately (in 1-2 seconds) increases the ionization level and ensures 1-2 days of trouble-free operation, without E5, E4.
Tapping the motherboard, transformer, doesn`t change anything. Banging the boiler casing doesn`t change anything. Banging on the combustion chamber housing temporarily solves the problem!!!
What could be the cause of the problem in this case???
If you know the solution and don`t want to help on the forum, send me a PRV. We`ll come to an agreement. I am from the Piaseczno area near Warsaw.
The ionization level during failed repeated firing is below 1-2. Once it manages to take off, the ionization remains at the level of 8.5-9.0.
Sometimes it happens that the ionization jumps 8 - 2 - 2 -7 -2 etc, every few seconds, but after hitting the combustion chamber it returns to 8.x
Andrzej.
Andrzej
De Dietrich MCR 2 24/28 MI boiler from 2010.
A typical fault is E5, E4 - several times a day, and the worst occurs at night and while showering.
I invited a service technician 1 - He came, promised to fix it, but did not show up again on the promised date.
I invited service technician 2 - He came and did the service, and after 2 weeks the problem returned.
I talked to service technician 3 - he recommended replacing the ignition electrode first, and if that doesn`t work, replacing the chimney, transformer, gaskets and motherboard.
I replaced the ignition electrode - the original one a month after "service no. 2" had a 6-7 mm gap.
All connectors checked and cleaned, power socket polarity OK.
Nothing helped.
What helps???
Strong blowing of the combustion chamber housing several times before and after replacing the electrode immediately (in 1-2 seconds) increases the ionization level and ensures 1-2 days of trouble-free operation, without E5, E4.
Tapping the motherboard, transformer, doesn`t change anything. Banging the boiler casing doesn`t change anything. Banging on the combustion chamber housing temporarily solves the problem!!!
What could be the cause of the problem in this case???
If you know the solution and don`t want to help on the forum, send me a PRV. We`ll come to an agreement. I am from the Piaseczno area near Warsaw.
The ionization level during failed repeated firing is below 1-2. Once it manages to take off, the ionization remains at the level of 8.5-9.0.
Sometimes it happens that the ionization jumps 8 - 2 - 2 -7 -2 etc, every few seconds, but after hitting the combustion chamber it returns to 8.x
Andrzej.
Andrzej
