On 10/11/2016 01:04, Mark wrote:


so 2 and 3 out in your case
If you are still having explosive ignition problems remove J4
Phone Baxi for confirmation

Mark .. thanks for comment - struggling to get to bottom of this ... in
original Manual it stated 1 & 2 should be removed as a pair to set to
1000,000 Btu/h and when used with a Thermal store.
Also read elsewhere that if you remove 1 & 2 .. its sets to 100.000Btu/h
and turns off modulation

Are you sure that I should have jumper 1 in place ?

Looks like Explosive ignition issue may now be resolved (earth wire
harness issue) so left 4 in


I found a later manual on-line:
http://www.freeboilermanuals.com/ass...c/100%20HE.pdf

page 22:
If the installation requires a greater output to
achieve the desired room temperature, this can be
increased to 31.18 kW (103,000 Btu/hr) and the
boiler can be adjusted as follows:
a) Draw the control PCB forwards out..
b) Remove all three jumpers.


If the boiler is to be used in conjunction with a
Thermal Store, the boiler can be adjusted as follows:
a) Draw the control PCB forwards out ..
b) Remove jumper 2

Just seems a bit odd ... remove 1,2 & 3 for 100,000Btu/h
But remove only J2 for thermal store