New HFS-1 system not working

[Richard L]

Got it, 4125.

The "B" or "high boost enabled" only comes on where all the conditions are correct, ie, the water flow is inside the WL and WH area after triggering.

The instruction may not be as clear on the user manual, basically you need to set the first to read about 5 bars under boost conditions.

WL (set windwow low limit) ..... fully counter-clockwise = 1 bar display, fully clockwise = 5 bar display
wH (set window High limit) ..... fully cloackwise = 8 bar, fully counterclockwise = 5 bars

If you set WL and WH at 12 o'clock, your window width is approximate 3-7bars, if the indicated bar goes outside those window limites, the failsafe will trip and reduce your boost and "B" goes off. The "B" stays activated as long as you are inside the window during spray.


Does this make any sense to you? If you are not sure, set the WL and WH at 12 o'clock and tell me if this works.