i hope someone can help,i have a seven year old ferroli modena 80e and it has been a faithful servant for as long,until four days ago when it stopped working.i reset it after all the usual visual checks,bar pressure,gas,electric etc. but it ignites lasts 4 seconds then goes out,ignites for a few seconds goes out and this continues,i replaced the ch sensor as this looked corroded and covered in some brown gunge ? i also replaced the wet case and wiring to the ch sensor as this was also corroded, but still it is firing up going out etc.on reading some of other probs. people have,my pump may not be working,it feels quite hot to touch,any suggestions most welcome!