But that isn't a powerflush. We down south can tell the difference
!
OP
This is painful. However, we know you have poor circulation but don't know whether it's due to :
1) Lack of pumping, due to
a___ knackered pump
b___ blocked pump
or
2) Other Blockage in the system
a___ inside or
b___ outside the boiler
or
3) Diverter not diverting , due to
a___ waxstat not moving or
b___ diverter parts not moving properly
1a) have you undone the screw and checked it's spinning madly?
The octagonal knob undoes so far. Sometimes it comes off revealng bolt like this
b
If you took the motor off the pump you could check for this:
2) you may have somethng like:
or
you could have some of this:
3)
a the bits might not be as new in the diverter
b the proddy bit might not be coming out of the waxstat far enough
If you want to check the waxstat, put the heating on and let it get as hot as it does, then take a heating device like a heat gun - be very gentle if you use a blowlamp - to heat the waxstat end of the diverter valve. Don't get it over boiling point or you'll do damage.
