No water jet coming from the Piezon
handpiece
No powder/air jet coming from the AIR-
FLOW or PERIO-FLOW handpiece
Water leakage between the handpiece
cord and the handpiece
Water leakage between the PERIO-FLOW
handpiece and the nozzle
Air and powder leakage on the main unit
Air and powder is leaking at powder
chamber
Handpiece AIR-FLOW or PERIO-FLOW
effi ciency decreases
Leakage on the unit water supply
Check the water supply and water fi lter
Make sure the liquid fl ow rate is set at maximum level
Check the connections between the unit, the cord and the handpiece
Remove the instrument and activate the foot pedal for a few minutes until the liquid fl ows to the handpiece
Check for presence of water at the cord outlet port
Send the handpiece to an authorized Hu-Friedy & EMS Repair Center
Check the compressed air supply and air fi lter
Check for presence of powder/air at cord outlet port
Eliminate residual powder present in the channels using the cleaning needles provided
Check the quantity of powder in your unit
Send the system to an authorized Hu-Friedy & EMS Repair Center
Check the condition of the handpiece connecting O-rings
Send the system and the handpiece cord to an authorized Hu-Friedy & EMS Repair Center
Verify the position of the nozzle and its position on the handpiece
Verify that no dirt remains between the nozzle and the handpiece
Verify that nothing affects the alignment or prevents fi xing the nozzle.
Replace the nozzle
Replace the handpiece
Send the system and the handpiece cord to an certifi ed Hu-Friedy & EMS Repair Center
Verify the positioning of the bottles
Check the O-rings under the silicone caps of the powder chamber holders
Verify the cap of the powder chamber and the O-ring positioning
Verify the check valve and the O-ring under the powder chamber
Remove all powder dust between the bottle holder and the powder chamber
Send the unit to an authorized Hu-Friedy & EMS Repair Center
Check the seal condition and the cleanliness of the thread of the powder chamber cap
Replace the seals if necessary
Clean the sealing surfaces carefully
Replace the powder chambers
Send the unit to an authorized Hu-Friedy & EMS Repair Center
Verify the quantity of powder in your unit
Eliminate residual powder present in the channels using a cleaning needle
Send the system and the handpiece cord to an certifi ed Hu-Friedy & EMS Repair Center
Check the water supply connection and inlet pressure
Send the unit to an authorized Hu-Friedy & EMS Repair Center
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