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Fanuc · CNC parts

A02B-0338-B500 — Fanuc 0i-MF CNC control unit: fault codes, repair & supply

The A02B-0338-B500 is a Fanuc 0i-MF CNC control unit used on machining centres. Star Automations sources and supplies the A02B-0338-B500 and repairs failed units at component level, so you can choose between a replacement and getting your existing unit restored. This is a current OEM line. Availability and price are confirmed per enquiry. Most quotes come back the same day — send the part number or the fault code on WhatsApp.

WhatsApp for A02B-0338-B500Ask about repairCall +91 97866 22233
Fanuc automation spares and drives at Star Automations
01Fault codes

Common Fanuc 0i-MF fault codes and what we usually find

Fault code wording can differ by firmware and manual revision — always confirm against the manual for your exact unit. The causes below are typical findings, not a diagnosis of your specific unit.

CodeMeaningTypical cause
SV0306APC alarm: battery zero voltageAbsolute encoder battery dead, position lost
SV0307APC alarm: battery low 1Battery weak — replace while powered
SV0308APC alarm: battery low 2Battery weak — replace while powered
SV0401V-READY OFFServo amplifier not ready
OT0500Overtravel (+)Axis hit positive limit
OT0501Overtravel (-)Axis hit negative limit
02Symptoms

When a A02B-0338-B500 needs attention

  • Blank screen or controller does not boot
  • System alarm at power-up
  • Lost parameters or memory
  • Keys or display not responding
  • Servo alarms on all axes at once
03Your options

Replace or repair your A02B-0338-B500

Source a replacement

Send the part number. We check sourcing from global surplus and the OEM channel and reply the same day with availability, condition and price. Advance or verified escrow applies.

Repair your existing unit

If sourcing takes longer or you want to keep your configuration, we repair at component level — power stage, gate-drive, control and supply sections — and test before dispatch.

04Related searches

What people look up for the A02B-0338-B500

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  • Fanuc CNC repair India
05Related

More from Fanuc

06FAQ

A02B-0338-B500 — common questions

Can you supply the A02B-0338-B500 in India?
Yes. Star Automations sources the A02B-0338-B500 from global surplus and the OEM channel, and ships across India. Send the part number on WhatsApp +91 97866 22233 for same-day availability, condition and price.
Can a faulty A02B-0338-B500 be repaired instead of replaced?
In many cases yes. We repair Fanuc units at component level and test before dispatch. Send the fault code or symptom and we will tell you whether repair is practical for your unit.
My A02B-0338-B500 shows SV0306 (apc alarm: battery zero voltage). What should I do?
Check supply, wiring and cooling first, then send us the full fault message. Typical causes: absolute encoder battery dead, position lost. We can quote a repair or a replacement.
Is the exact part number important?
Yes. Revision and option suffixes matter for Fanuc parts. Send the full number from the nameplate, or a photo of it, and we will confirm a compatible match before you pay.

Need the A02B-0338-B500 now?

Send the part number or fault code — we reply the same day. Serving Chennai, Puducherry, Bengaluru, Hyderabad, Delhi and pan-India.

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