Hi
(Vaillant Turbomax Plus 828E - 282/2.5 GC 47 044 09 )
Today, changed the heat exchanger and diverter valve, and that seemed to be OK. However, I must've nudged another pipe and disturbed an old oring that started to drip. Annoying it was the one behind the pump. Doh.
Looking at parts diagram it is the pipe from the top right of the HE to the back of the pump (part 22) on the diagram - and that says it uses o'ring part 44 as it goes into the back of the pump connector (part 25)
Now, the pump had to come out to access that, and where the pumps fits on to the housing it uses the same oring part 44. Part 44 is Vaillant part 981151 for 10x. Great. (I have just ordered 10 from local supplier, will collect tomorrow).
1 & 3 show part 44 oring on the pump connection. 2 shows part 44 oring on the pipe I need to replace the oring on. So according to this, its the same
However, I'm not convinced it is part 44 as the o'ring from the pump fitting is bigger (and thinner?) than the o'ring that connects to pipe 22. (The pump o'rings are 2yo and the pipe o rings must be original (10+ years).
The OD of the area where the o'ring sits on pipe 22 is 19mm and the OD of the area where the o'ring on the pump site is 20mm. Surely they can't be the same? (3 parts suppliers all had the same diagram as above, and that's what they insisted it was)
Help!! Is that right?
Pic o1 shows the LH old oring from pipe 22, and the RH the oring from the pump. Both part 44 according to diagram, but different sizes
Pic o2 shows the pipe where it needs the oring (pipe part 22)
Any ideas?
(Vaillant Turbomax Plus 828E - 282/2.5 GC 47 044 09 )
Today, changed the heat exchanger and diverter valve, and that seemed to be OK. However, I must've nudged another pipe and disturbed an old oring that started to drip. Annoying it was the one behind the pump. Doh.
Looking at parts diagram it is the pipe from the top right of the HE to the back of the pump (part 22) on the diagram - and that says it uses o'ring part 44 as it goes into the back of the pump connector (part 25)
Now, the pump had to come out to access that, and where the pumps fits on to the housing it uses the same oring part 44. Part 44 is Vaillant part 981151 for 10x. Great. (I have just ordered 10 from local supplier, will collect tomorrow).
1 & 3 show part 44 oring on the pump connection. 2 shows part 44 oring on the pipe I need to replace the oring on. So according to this, its the same
However, I'm not convinced it is part 44 as the o'ring from the pump fitting is bigger (and thinner?) than the o'ring that connects to pipe 22. (The pump o'rings are 2yo and the pipe o rings must be original (10+ years).
The OD of the area where the o'ring sits on pipe 22 is 19mm and the OD of the area where the o'ring on the pump site is 20mm. Surely they can't be the same? (3 parts suppliers all had the same diagram as above, and that's what they insisted it was)
Help!! Is that right?
Pic o1 shows the LH old oring from pipe 22, and the RH the oring from the pump. Both part 44 according to diagram, but different sizes
Pic o2 shows the pipe where it needs the oring (pipe part 22)
Any ideas?
