Miller Electric Regency 250 manual Maintenance & Troubleshooting, Routine Maintenance, Months

4-1.

Routine Maintenance

Y Disconnect power before maintaining.

3 Months

Replace

Repair Or

Replace

Unreadable

Cracked

Labels

Weld

Cable

Clean And

Replace

Tighten

Cracked

Weld

Parts

Terminals

14-Pin Cord

Torch, Electrode Holder,

Or Gun Cable

6 Months

Blow Out

During Heavy

Or

Service,

OR

Vacuum

Clean Monthly

Inside

4-2.

Troubleshooting

Trouble

Remedy

No weld output; unit completely inoperative; pilot light

Place Power switch in the On position (see Section 3-1).

not on.

Place line disconnect switch in the On position (see Section 2-9).

Check line fuse(s); replace if open or reset circuit breaker(s) (see Section 2-9).

Check for proper input connections (see Section 2-9).

Erratic weld output.

Use proper size and type weld cable (see Section 2-6).

Clean and tighten all weld connections (see Section 4-1).

Check for proper input connections (see Section 2-9).

No open-circuit voltage; pilot light on; wire does not

Secure gun trigger connections or see gun Owner’s Manual.

feed.

Secure plug in Remote 14 receptacle RC3 (see Section 2-7).

No open-circuit voltage; pilot light on; wire feeds.

Thermostat open (overheating). Allow unit to cool.

Have Factory Authorized Service Agent check contactor W.

Open-circuit voltage normal; pilot light on; wire does

Check gun or wire feeder Owner’s Manual.

not feed.

No 115 volts ac output at Remote 14 receptacle RC3.

Reset circuit breaker CB1 (see Section 3-1).

No 24 volts ac output at Remote 14 receptacle RC3.

Reset circuit breaker CB2 (see Section 3-1).