Dynex 91000051 manual Operational Problems, Symptom, Probable Cause, Resolution

Operational Problems

Symptom	Probable Cause	Resolution
Liquid is not	The wash	Check the system
dispensed from the	protocol is	configuration and wash
dispense pins	incorrectly	protocol for the number
(continued).	defined.	fluids and fluid volume.
	The dispense	Verify that the dispense
	tubing or the	tubing and the dispense
	dispense pump	power supply are
	power supply is	connected (see page 20).
	not connected.
	The dispense	Remove the tubing from
	tubing is sealed	the dispense valve and
	shut at the	massage the tubing to
	dispense valve.	release it. Replace the
		tubing into the dispense
		valve at a different
		location.
		Purge the tubing more
		frequently.
		Replace the tubing.
	The dispense	Service is required.
	valve does not
	open.
	The wash head	Remove the wash head
	manifold tubing is	assembly and clean it
	blocked.	using the manifold head
		cleaning wire. Then run a
		purge. Service is required
		if problem persists.
	There is a	Check the seals and
	pressure leak.	tubing for leaks.
		Check for air leaks.
		Reseat the tubing in the
		dispense valve.
	The dispense	Service is required.
	pump is faulty.
Liquid is dispensed	The dispense	Insert the dispense tubing
continuously from	tubing is not	into the dispense valve
the dispense pins	inserted in the	(see page 20).
	dispense valve.

78 Opsys MW™ User’s Guide