Water Flow Low
This guide takes you step-by-step through the process of checking for low water flow
- Laser 220VAC or Three-phase:
- Check that the input current is correct (220VAC or 360VAC)
- Machine with By-Pass Valve:
- At the top of the water bottle, follow the hose to the By-Pass valve, with the hose returning to the water bottle
- Turn the valve and verify that there is water flow into the bottle
- Make sure no hose is kinked
- Without By-Pass Valve:
- Press and hold the water outlet hose on the Flash Lamp Chamber for 10 seconds, then ensure there are no air bubbles.
- Repeat the procedure until no air remains in the water line.
If no more air bubbles remain in the water line and the problem persists, locate the pins labeled J34 on the Control Board. A purple wire will be connected in that position.

Take a two-pin jumper from the Troubleshooting Jumpers Kit. This Kit is always close to the Control Board.
Disconnect the cable at J34 from the Control Board and place one Black Jumper Cap on the pins at J34.
Turn ON the laser. Check if the message no longer appears.
- The message appears: "Control Board Faulty."
- The message does not appear = Flow Valve Faulty or irregular water flow in
the System
If your water filter is older than 6 months, replace it.
If your laser is the benchtop version, check that there are no obstructions in the water container outlet.
- Drain the water from the system.
- Remove the water filter.
- Look inside. The interior of the Water Bottle must be clean and
without any residue. - If you find debris inside, remove the water bottle to clean it.
- Use a soft-bristle brush to clean the water bottle's inner screen.

If the Water Pump is noisy, replace the Mag Drive, water, and water filter.
Once you have checked all previous steps and the problem persists, replace the flow switch.
Do not attempt to use the laser with the jumper installed on J34. If there is low water flow to the laser and you bypass the warning message by installing the jumper on J34, this can cause more severe damage to the laser.
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