Bleeding the System:
Sometimes while sailing air will find its way into the water intake and effectively “lock” water from
flowing to the units, meaning they cannot run as it is from this circulation of outside water that the
units produce cool air. The head units will blink “HPF” (High Pressure Fault) and shut down when
an air lock happens. First, turn the head unit off or it may damage the unit!
To bleed the air out of the water intake, go to the cabinet under the sink and look along the top
back corner (behind the trash can). Open the white-handled valve and turn the head unit on, then
switch the secondary bilge pump on at the instrument panel (top right button). Water and air will
be exhausted overboard. If you look in the primary bilge in the galley area, you’ll see a clear hose
that runs off a through-hull fitting to a strainer then forward to the AC unit. There should be no air
bubbles in that hose with water flowing continuously. Watch for a moment and ensure it is then
close the bleed valve and shut off the bilge pump – the system should be bled of air and operating
smoothly.
Circuit Breakers:
If there’s power coming into the boat but the breakers at the panel and the head units won’t turn
on, check that the secondary breakers haven’t tripped. They are reachable through the holding
tank inspection panel in the head (shown below).
AC bleed valve: turn
90
°
to open, then turn
on secondary bilge to
pump out air
