Miller Electric CV-2 owner manual Troubleshooting, Trouble Probable Remedy

Table 6-3. Troubleshooting

TROUBLE	PROBABLE	REMEDY
Wire feeder inoperative.	Circuit breaker CB5 or CB6 open.	Reset CB5 or CB6 according to
		Section 6-2.
No remote control of con-	OUTPUT/CONTACTOR switch S10	Place S10 in the REMOTE position
tactor; open-circuit voltage	in the ON position.	(see Section 4-3).
present all the time when
engine is running.
No contactor control; no	CV-2 not correctly installed if done as	Review Section 3 and check all
weld output; no open-	a field kit.	connections.
circuit voltage.
	Incorrect or poor connections to	Check and secure connections (see
	REMOTE-5 receptacle RC3 or	Sections 3-2 and 3-3).
	REMOTE-14 receptacle RC4.
	Remote Contactor Control device.	Check and repair or replace remote
		device as necessary.
	Contactor control circuit board PC3.	Replace PC3 according to Section 6-3.
Improper current or volt-	Remote current and/or voltage control	Use only one CV-2 receptacle for
age level adjustment with	device connected at both receptacles.	remote current or voltage control.
remote control device.
No control of voltage;	CV-2 not correctly installed if done as a	Review Section 3 and check all
maximum or very low or	field kit (cables 19 and 30 from rectifier	connections, especially cables 19 and
no open-circuit voltage	SR3 reversed to Selector Switch cables).	30.
present.
	Incorrect or poor connections to	Check and secure connections (see
	REMOTE-5 receptacle RC3 or	Sections 3-2 and 3-3).
	REMOTE-14 receptacle RC4.
	CV/CC switch S12 in CC position.	Place S12 in the CV position (see
		Section 4-1).
	Remote Voltage Control device.	Check and repair or replace remote
		device as necessary.
	Voltage control circuit board PC4.	Replace PC4 according to Section 6-3.

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