wave wrote:With no changes on my end ( same bleed, clean tip etc. ) the steam times started to increase. It now takes around 35 sec to reach 160 deg.
Increasing steam time of a new machine for no apparent reason? What you describe is very strange, I can only speculate on the cause.
Did you also notice a reduction in the volume / velocity of the steam (clogging)? Or changes in the boiler pressure (initially lower / slower heating element response)? What about the boiler's water level? If it were way too high, the steam output would drop off dramatically. Have you asked about similar reports on
Chas' S1 forum?
PS: I evaluated the S1 back in 2004 and haven't heard any reports of significant design changes since then.