HAAS® Power Supply Exchange & Repair
Break down today. Make it work again tomorrow.
We lend you a working power supply within 24 hours, fit it and prove the machine. You keep the loaner while we repair or replace yours — fixed pricing, same warranty as new.
What the power supply does
The low-voltage power supply feeds the control boards — MAINCON, MOCON, I/O, video — with their 5 V, 12 V and 24 V rails. When it sags or gets noisy the boards misbehave in ways that look like board failures. We see a lot of MOCON “faults” that turn out to be a tired PSU.
Signs it has failed
- Intermittent alarm 101 COMM. FAILURE WITH MOCON with no obvious cause
- Random resets, or the control rebooting mid-cycle
- Alarm 124 LOW BATTERY and CRC errors that return after a battery change
- I/O outputs dropping out, coolant or air solenoids chattering
- Screen flicker, or the machine failing to power up cleanly
Related alarm codes
If one of these is on your screen, this is likely the part — each links to our plain-English guide.
- Alarm 101 — comm failure with mocon mocon memory fault
- Alarm 124 — low battery
- Alarm 201 — parameter crc error
- Alarm 204 — offset crc error
Why they fail
Electrolytic capacitors again — the PSU runs warm for its whole life and its output filter caps go high-ESR. Some units simply lose regulation. Because the symptoms mimic board failures, the cheap fix is often missed and a much more expensive MOCON or MAINCON gets replaced unnecessarily.
Part numbers we cover
How Exchange & Repair works
- You call, we quote on the spot. Phone diagnosis to confirm the failed part. We tell you honestly whether we hold that unit, the fixed swap-in fee, and the fixed replacement price if yours can’t be repaired.
- We bring the part within 24 hours. An engineer arrives with the loaner, fits it, proves the machine and takes your original away. You’re cutting again the same day.
- You keep the loaner while we repair yours. Proper diagnosis at the bench, no time pressure. If we repair it, we swap back at your next service. If we can’t, you keep the loaner and pay the fixed replacement price you were quoted on day one.
Fixed pricing
One fixed swap-in fee plus a fixed price list for every replacement part, sent to you the moment you call. No hidden costs. If we repair your original, that’s all you pay.
Same warranty as a new HAAS® part
Every part we exchange carries the warranty HAAS Automation, Inc. gives on the equivalent new component — parts and labour, in writing, from the day we fit it.
A note on this guide. Symptoms and part numbers vary by HAAS® machine model and software revision. This guide is written to help you narrow down a fault and understand your options — it is not a substitute for a qualified engineer’s diagnosis. HAAS® is a registered trademark of Haas Automation, Inc. Squidex Solutions Ltd is an independent service provider.