Haier 3150 SB Leak in inlet or outlet sanitary fit, Loose sanitary clamp, Tighten clamp, ting

		Troubleshooting
PROBLEM	CAUSE	SOLUTION
Leak in inlet or outlet sanitary fit-	Loose sanitary clamp.	Tighten clamp.
ting.
	Damaged or worn gasket.	Replace gasket.
	Misalignment of inlet/outlet hose or	Use flexible hoses at pump inlet
	pipe.	and outlet.
	Gasket does not seal.	Use a standard sanitary gasket of
		flexible material such as EPDM,
		Buna-N, fluoroelastomer, or silicon.
Fluid in exhaust air.	Diaphragm ruptured.	Replace. See page 21.
	Loose diaphragm plate.	Tighten or replace. See page 21.
Pump exhausts excessive air at	Worn air valve block, plate, pilot	Repair or replace. See page 16.
stall.	block, u-cups, or pilot pin o-rings.
	Worn shaft seals.	Replace. See page 21.
Pump leaks air externally.	Air valve cover is loose.	Tighten screws. See page 16.
	Air valve gasket or air cover gasket	Inspect; replace. See page 16.
	is damaged.
	Air cover clamps are loose	Tighten clamps.
Pump leaks fluid externally from	Loose manifolds, damaged seal	Tighten manifold clamps or replace
ball check valves.	between manifold and seat, dam-	seats or clamps (32). See page 19.
	aged gaskets.
Chattering.	Check balls not seating prop-	Reduce size/diameter of inlet line
	erly/cleanly due to imbalance	relative to outlet line. Outlet line
	between fluid inlet and outlet line	size should not exceed pump size.
	sizing. Noise is accentuated with
	light viscosity fluids.

310622L 15