Classic case of Misalignment
hydrogen boiler infrared thermal imaging hydrogen boiler visible light
Visible Light Image
This is what misalignment looks like in Infrared, notice the heat on the motor inboard bearing and the pump shaft caused from the stress palced on them from this misalignment.
Also notice the rubber center in this Martin Style coupler. It is heating up from the expansion and contraction that the misaligned coupler hubs are causing.
This machine will not last long under this obvious misalignment.