Repair
Repair Price: $ 560.00
Purchase
CSL Part Number: 87809
Product Overview: The Millermatic 250 Welder Control Board (Miller 173390) is the main control PCB for the Millermatic 250 MIG welder, managing wire feed speed, gas solenoid activation, and trigger input functions. It regulates multiple DC voltage supplies (9V, 10V, ±15V) and controls the feedmotor and gas solenoid outputs based on operator inputs. This board is used in Miller Millermatic 250 and 250X industrial MIG welding machines. Note that part number 173390 has been discontinued and replaced by 184316, which is also no longer available.
Category: Welders
Manufacturer: Miller Electric
Manufacturer Part Number: 173390
Series: Millermatic Welders
Common Failures
Common issues observed with these units include inoperative welders, failure of the wire feed speed control, and faulty voltage regulators. A recurring issue involves the VR4 voltage regulator, which can lead to problems such as no output voltage on various terminals and inoperative components.
Repair Approach
The repair process typically involves replacing defective components, such as voltage regulators and capacitors. Preventative maintenance may include replacing components that show signs of potential failure, such as electrolytic capacitors that could affect the unit's longevity.
Testing & Quality
Each unit undergoes diagnostic testing to verify operational standards are met. This includes testing voltage levels and inputs such as feedrate and enable inputs. Burn-in tests are conducted, with and without loads, to evaluate reliability. Units are reviewed by different technicians to ensure thorough inspection and verification of repairs.
Repair your broken Miller Electric part
We can repair your Miller Electric model 173390 .
Please note: our repair turnaround time may be longer than our standard lead times for this item.
Step 1 -
Click the green button above, "Repair Now," and add to your RMA.
Step 2 -
Print the RMA form that is emailed to you, and put it in a box with the parts for repair.
Step 3 -
Mail the box to the address on the RMA.
You will be sent an authorization for repair via email. Your approval is needed before any work is started.
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