can I replace hose on sd 623?

Yes. But is it a hose. Find the source and it can be repaired.

bendan
May 2009

you can buy the hoses new but it may just require the jubilee clip that secures it tightening up,but beware saunier duval boilers are notoriously leaky boilers and you may cause more leaks than you solve as just looking at these the wrong way usually makes them leak thats why most one man band gas men either can't be bothered with the hastle and avoid them like the plague or will charge you an extortionate amount to repair them

jock
April 2009