Buderus GB142 Boiler Code 6A 227

3 year old Boiler block leaking water in fire chamber.
Parts needed not supplied with new block from Buderus .
Item # 85 pump seals need 2 part number 15022s
Item # 76 Double nipple THR / compression  need 2 part # 75977
Watts dielectric unions 1 inch female , need 2 .

Good to have on hand is a extra supply pipe item # 47 ,you'll only need the o-ring from it!!! 0-ring can not be ordered separately !!!!
Check out this link for other GB142 customer issues
https://www.furnacecompare.com/boiler...