Yes its in the flame.
The hot is better now I have fitted the new diverter valve (plastic) original brass.
what i did notice was the water pump is hotter than the water pipes to it. Maybe there is a flow issue with the pump? I have checked the pump for air at the bleed valve.
Yes the dreaded Bahama. this time we have:
The flame going out after 8 seconds then re-starting for 8 seconds.
metered both flow switches tested ok.
APS tested ok.
new flame sensor fitted. no difference
No inline filters found, (previously found in and out filters on different bahama and...