Numatic
Accessory Port Flow or Suction Fault
On models with separate accessory sockets, external wand tools do not operate correctly when connected.
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Possible Causes
Blocked accessory port, Incorrect hose connection, Internal diverter valve stuck, Leak at accessory coupling
How to Fix / Troubleshooting
Safety first: Unplug the machine before changing hose connections.
- Verify connections: Ensure the accessory hose is connected to the correct port and fully engaged.
- Clean port: Inspect and clear any debris from the accessory suction and solution ports.
- Check diverter valve: If your model uses a valve to switch between floor and accessory modes, operate it several times to free it. Service if stiff.
- Inspect couplings: Replace any worn O-rings or damaged couplers that may cause leaks.
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Repair Difficulty
Easy
2/5
Required Part
Accessory Port Diverter Valve
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