Water Hardness Analyzer
AW101 Testomat 6 Error Messages and Troubleshooting
14 IM/AW101 Rev. C
6 Error Messages and Troubleshooting
Displayed Message
(flashes at selected display)
CANCEL WITH HORN-KEY
Possible Causes Remedies
Ff. DOSING PUMP Dosing pump defective
No dosing message from the dosing pump
Replace dosing pump
Check cable to the dosing pump for correct
connection
Mf. TURBID The water is turbid / dirty
MEASURING RANGE EXCEEDED The measuring range is exceeded Choose another type of reagent (Basic program)
LOW WATER-PRESSURE No water input although LED I is lit
Inlet pressure too low
Overflow reagent is not active
Check water inlet
Connector of the inlet valve oxidized
Clean filter strainer
Replace valve block
Extract pressure regulator valve
Carry out adjustment
Ff. OUTLET TO DRAIN Water remains in the measuring chamber
although LED OUT lights up
Check water outlet
Connector of the outlet valve oxidized
Replace valve block
REAGENT LOW Reagent quantity is below minimum setting
without BOB: 50 ml (10%), with BOB: after
calculation
Check reagent level, fill up if necessary:
enter level: M SERVICE
Mf. DIRTINESS Sight-glass windows dirty Clean sight-glass windows
Ff. OPTICS Plug-in circuit board defective
Error at the optic component (transmitter or
receiver defective)
Replace plug-in circuit board
Replace measuring chamber sealing rings
Mf. ANALYSIS Incorrect analysis
For example:
Air in the dosing capillary
Incomplete blending
Reagent too old or use of third-party
reagent
Tighten connections of the dosing pump
Replace stirring mechanism
Replace suction insert in the bottle
Replace reagent (use only ABB reagent)
Ff. DOSING FAULT Dosing inaccuracy of the dosing pump Replace dosing pump or return to the supplier for
calibration
Table 6.1 Error Messages and Troubleshooting
Key
Ff. = Function fault
Mf. = Measuring fault
BOB = Low-level reagent alarm – see section 4.13, page 10.
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