Graco 204490 Marine Sanitation System User Manual


 
Troubleshooting
306556S 13
Troubleshooting
Problem Cause Solution
Low flow or air sucked into pump or
under inductor plate.
1. Open inductor plate vent
2. Loose inductor plate sleeve lock-
ing nut
3. Worn inductor seals
1. Close the inductor plate.
2. Tighten the locking nuts.
3. Replace seals; See Parts Draw-
ing Page 16.
Failure of snap-valve or air-assist
valve
Worn o-rings or seals
Remove valve, place in vise, disas-
semble and replace parts as
needed.