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13. Trouble-shooting
Fluid leaks at the gap
between the valve
block and the recirculation
valve
Fluid leaks between
stopcock shaft and
valve block (only perceptible
when cover is removed
Delivered volume
incorrect
No display
- Recirculation valve loose or
damaged
- Stopcock shaft loose
- Discharge tube loose or
damaged
- Suction tube loose or
damaged
- Suction/ discharge/
recirculation valves loose or
damaged
- Device switched off
- Battery is flat
- Tighten recirculation valve with the
wrench or replace if necessary
(see section 10)
- Tighten nut on stopcock shaft
- Mount original discharge tube correctly
(see section 6.4)
- Tighten suction tube (see section 6.2)
- Tighten valves with the wrench
- Clean the device (see section 8.1)
- Briefly touch either one of the keys to
switch on the device
- Battery needs to be replaced
50
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