We are an authorised service centre for Migatronic and Voestalpine Böhler Welding. We specialise in professional out-of-warranty repairs of plasma units from leading manufacturers, including complete overhauls of Hypertherm systems. We guarantee expert diagnostics, original components and full technical support.
Is your Hypertherm Powermax hissing non-stop? Get control and reliability back.
A constant, uncontrolled flow of air from the torch is not just an annoying problem. Above all, it is a sign of a critical solenoid valve failure. Ignoring it leads to costly downtime, wasted compressed air and a risk of damage to the control board. We offer a complete repair with a guarantee: we replace the faulty module with the original Hypertherm repair kit P/N 228687 and bring your machine back to full working order and its well-known reliability.
Diagnosis: why does this happen?
The solenoid valve problem in the Powermax 65 and 85 is a widely known fault. The table below will help you identify it clearly.
| Symptom | Likely cause and solution |
|---|---|
| Constant air flow from the torch, even when the unit is idle. | The valve is mechanically stuck in the open position. The complete 228687 module has to be replaced. |
| Error codes 3-20-0, 3-20-1, 3-20-3 shown on the panel. | A fault in the valve's electrical circuit or its connection. The usual fix is replacing the complete kit. |
| Cut quality problems, unstable arc. | Incorrect gas flow control (pre-flow/post-flow) caused by a damaged solenoid valve. |
Our service, your peace of mind
Why do we replace the WHOLE module and not just the valve?
We follow Hypertherm's no-compromise service approach. The manufacturer supplies component 228687 as a complete, factory-assembled and tested subassembly for a reason: it contains the valve, hoses and screws. This removes the risk of assembly errors, leaks on old hoses or wrong connections. In production, where every minute of downtime costs money, speed and 100% certainty of the repair come first. We guarantee that after our work the gas control system will run like new.
The risk of cheap non-original replacements
Asian replacements are sold for a fraction of the price of the original. Buying them is a false economy that almost always ends badly. These parts often come with a false specification (e.g. the wrong supply voltage) that can instantly damage the main board of your cutter, with repair costs many times higher than the price of the original module. Made from inferior materials, they soon lose their tightness and performance. By using only the original Hypertherm 228687 kit, you protect your investment and keep the work safe.
Our repair process step by step
We carry out the replacement according to Hypertherm's strict service procedures. The process covers removing the housing and components, safely disconnecting the old module, installing the new, original 228687 kit with the screws tightened to the correct torque (23 kg-cm), then reassembly and a full functional test of the unit. You can be sure the job will be done professionally, cleanly and effectively.
What do you gain with our service?
- Full working order: The constant gas flow problem is eliminated.
- Protecting your investment: Further, more expensive electronics failures are prevented.
- Quality guarantee: Only the original, brand-new Hypertherm 228687 kit is used.
- Saving time and money: No more wasted compressed air or downtime.
Don't wait until a minor fault turns into a serious problem. Contact us to book a repair and bring your Powermax back to factory performance.
