Proud owner of a PowerMax 155 which has been trouble free since installation in 2002. Now only have hot water, no central heating. Has power supplied (orange light on) gas supplied, but cannot get burner to light and stay on. Tried the re-set but now there is no display at all on the programmer (blank screen). Trying to establish if this is linked to a DIY disaster at weekend when I drilled though a downstairs light cable behind stud wall (muppet). Tripped and blew lighting ciruit but was unaware until the morning that the heating had failed. Is it possible that interuption of supply has (less than 24 hours) has caused problems with circuit. any ideas and advice would be greatly appreciated, especially as the colder weather approacher ... brrrrr Cashers!