How do I put my CPM or EF/EF+ into Service Mode?
For Version 2 or 3 CPM’s & EF/EF+ units: Locate the small …
Our faq
Can I cascade earlier and later versions of the CPM?
Version 2 boilers can NOT be cascaded with Version 3, CPM+ or …
My EF+ is showing a code of E6. What does this mean? The appliance is still working.
E6 is a “Safe running mode”. This is a result of the …
Where do I find the serial number on my CPM/EF/EF+?
Remove the front casing panel and then look up at the inside …
How do I tell which version of the CPM I have?
There have been four versions of the CPM to date: Version 2; …