MRI Service Hub

MRI Machine Repair and Service for GE and Siemens Magnets

One place for everything that keeps a magnet scanning: the faults we are called out to, the calibration and parts work behind them, the cryogens that keep it cold, and the contracts that put it in writing. Start with the symptom below; every card links to the page that goes deeper.

Repair

RF, gradient, table and coil faults on GE Signa and Siemens magnets, diagnosed on-site before any part is ordered.

Cryogens

Liquid helium fills and delivery across the continental US, and cold head replacement on GE and Siemens magnets in eleven states.

Contracts and Tools

Full service and PM-only agreements quoted per system, plus the Grade 5 titanium MRI-safe tools our own engineers carry into Zone 4.

Every MRI Service in One Place

Diagnose the Fault

GE Signa MRI Troubleshooting
MRI Software Issues
MRI Computer Issues

Keep It Running

MRI System Calibration
MRI Parts Installation
MRI Full Service Contracts
MRI PM-Only Agreements

Magnet and Cryogens

MRI Liquid Helium Fill
Liquid Helium Delivery
MRI Cold Head Replacement

Tools and Consumables

The MRI-safe tools our engineers carry on these calls.
MRI-Safe Titanium Tools
Titanium Wrenches
Titanium Allen Keys
Titanium Tool Sets
Spectris Solaris Syringe Kits
Contrast Injector Service

Faults That Stop Scanning Today

These take the room down the day they happen. Each one is a call now, not a Monday call.
Siemens MAGNETOM Espree wide-bore MRI scanner installed in an imaging suite

Hard-Down MRI Faults

If the console will not boot at all, or reports TPS Reset Failed or Host Monitor not running, start with GE Signa troubleshooting or MRI computer issues. Protocol and reconstruction failures are on MRI software issues.

Multicoil TR Bias Fault
The RF coil chain fails its bias check during Auto Pre-Scan and the system refuses to scan. More than one part of the chain can raise it, so it is diagnosed, not swapped.
Gradient Overcurrent or Gradient Not Ready
The gradient subsystem trips on overcurrent or never confirms ready after a recovery cycle. Until it clears, no sequence runs.
Scan stops mid-series
The table or scan halts with a patient in the bore and the study has to restart. It repeats, usually at a worse time, until the cause is found.
Patient Comfort Sensor trip
A bore-environment fail-safe stops the scan until conditions inside the bore are right. Nuisance trips point to a sensor, fan or airflow fault worth clearing before the next patient.
Talk to an MRI Engineer MRI Troubleshooting

Faults That Warn You First

These do not stop the room on the day they start, which is exactly why they get ignored until they do.
MRI technician servicing a GE MRI scanner — FDM Enterprises diagnostic imaging repair

The Warnings Worth Acting On

A magnet also warns you on the cryogen side: a helium level that keeps trending down, or a cold head that starts knocking. Those live on our helium fill and cold head replacement pages. Image-quality drift with no fault message usually belongs on MRI calibration.

Transmit gain climbing at prescan
Prescan needs more RF drive every month to hit the same flip angle. That trend is an RF amplifier or coil path losing output before it fails outright.
Receive coil elements dropping out
One channel goes quiet and the image shows shading or a step in signal across the field of view. Coil faults grow from one element to the whole array.
Spike and zipper artifacts
Bright specks or a zipper line that follows a particular sequence. Gradient spiking and RF leakage both leave this signature and both get worse.
Gradient cabinet temperature warnings
The gradient amplifier or coil runs warm and the system throttles or trips on long sequences. It is a cooling or amplifier problem, and it reaches the cryogens if the chiller is shared.
Schedule an MRI Assessment MRI Calibration

How the Job Runs

Pull and read the full system log, not just the headline error. Isolate the failing subsystem, RF, gradient, table, coil or cryogen, confirm it, then repair, calibrate and verify before the room goes back.

Why Facilities Call Us

25+ years of field service, more than 20 of them on MRI and CT, including GE Healthcare and Philips Healthcare OEM years. Veteran-owned, independent, and we find the cause rather than swapping parts until it stops.

Where We Work

On-site across eleven states, Tennessee through Florida. Helium fills and delivery reach the continental US. See our service coverage.

Frequently Asked Questions

It means the system flagged a fault on the RF coil chain during Auto Pre-Scan, and it stops you scanning until it is resolved. More than one part of the chain can raise it, which is exactly why guessing at a fix wastes time you do not have.

It means the gradient subsystem is not confirming ready-to-scan status, and the cause can sit in more than one place in that chain. Replacing the wrong part is an expensive way to find out you guessed wrong, so we identify the actual fault before anything is swapped.

Almost any subsystem, coil, RF or gradient, can trigger it, which makes it one of the hardest faults to self-diagnose. The fix depends entirely on which one it is.

Mid-scan interruptions can come from several places in the system, and letting it go usually means it happens again, often at a worse time. Getting ahead of it keeps your schedule intact.

It is a built-in fail-safe that stops scanning when conditions inside the bore are not right, and one of several things can be behind it. It is disruptive with a patient already on the table, so it is worth getting looked at quickly.

Yes. RF amplifier faults are diagnosed on-site, and when the amplifier itself is confirmed as the point of failure we replace and calibrate it to get you back to reliable scanning.

Yes. Liquid helium fills and helium delivery are arranged across the continental US through our cryogen partner, and cold head replacement on GE and Siemens magnets is done in our eleven-state footprint with the cryogen scheduled for the same visit. Each has its own page linked from this one.

FDM Enterprises services GE Signa Excite, HDx and HDxt systems (Signa software 9.x through 23.x) and comparable Siemens platforms, on-site across eleven states from Tennessee to Florida. CT service is GE only.

FDM Enterprises is an independent, veteran-owned alternative to an OEM contract: the same platform expertise, faster response and clear documentation on every visit, without the overhead. If you want coverage in writing, we also quote MRI full service contracts and PM-only agreements per system.