13
Problem
Little or no air
flow.
Loud noise
Possible cause
Thermal protective switch
activated due to high
temperature.
Internal tubes are
defective, popped off, or
not connected.
Diaphragm damaged
Other defect
Valves or diaphragm are
faulty.
Due to defective
diaphragm armature hits
coil/core.
Solution
After cooling the pump will switch
back on automatically.
Disconnect power.
Opens pump. Reconnect or replace
tubes.
Service pump by trained service
personnel.
Check pump by trained service
personnel.
Check pump by trained service
personnel.
Check pump by trained service
personnel.
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