Services

Corrective Maintenance and Troubleshooting

Corrective maintenance starts when an instrument has already failed or the results can no longer be used. Mahut diagnoses the fault and restores the system.

Troubleshooting on site follows the sample path. We do not swap assemblies until a check shows where the signal or the pressure is lost.

Typical calls

Safe user checks for the common HPLC and GC cases are in the knowledge base. Stop and call us if there is a gas leak, a hydrogen alarm, a cracked fitting, or a fault that remains after the column or the gas supply has been isolated.

HPLC pressure too high, too low, absent, or unstable
No peak, weak peaks, or retention times that move
GC inlet or detector pressure errors
A detector that will not ready, or a baseline that is too noisy to integrate
Leaks at fittings, pump seals, septa, or gas lines
A stoppage after a column change, a solvent change, or a gas-supply alarm

What we do on a corrective visit

Confirm the symptom on the method you use
Isolate supply, injector, column, and detector
Repair or replace the failed component
Run a simple checkout so you can see that flow, pressure, and signal are back
Tell you if the same fault will return unless a consumable or a method setting changes

What we need before arrival

A photo of the error text, the last good run, and the instrument model saves time. If a part is already suspected, say so, but do not leave fittings open or columns drying out while you wait.

If the same fault returns every month, ask for a preventive maintenance program after the instrument is back in service.

Keep reading

Spare parts

Performance optimization

Book your consultation

Book a consultation

Use a consultation to plan maintenance, review a recurring fault, or decide whether an instrument needs a visit now. If the instrument is already stopped, call +968 71130316.