Error messages/troubleshooting
62
Description, possible
causes
Solution, troubleshooting measures
No correct analysis, e.g.:
Air in dosing hoses?
Insufficient mixing
Indicator expiry date
exceeded
Foreign indicator in the
device
Re-tighten dosing pump connections
Renew intake insert in bottle
Check suction and pressure hose for dam-
age
Replace stirring bar
Replace indicator, only use Heyl Testomat
2000
®
indicator
Indicator minimum quan-
tity is not attained
- without BOB: 10%
- with BOB: according to
calculation
Check indicator fill level, Insert new indicator
bottle and Reset indicator fill level.
No water intake despite
permanent lamp "IN"
Intake pressure too low
Water remains in the
measuring chamber, de-
spite the lamp "OUT"
lighting up
Check water inflow
Plug at the inlet valve corroded
Clean filter sieve
Replace valve block
Remove the pressure regulator core
Outlet valve blocked or defective. Clean or
replace valve
Photo sensor not dark-
ened
Permanently illuminated
LED in measuring
chamber
Shut the device door
Avoid sunlight
Hardware problem. Send device for repair.
The quantity of indicator
no longer suffices for 72
hours operation without
supervision
Automatic venting has
failed.
Possible causes can be problems with the
dosing pump, optics, cloudiness, dirt contam-
ination, analysis error or water shortage. To
determine the error more accurately, keep
the OK button pressed and restart the de-
vice. Another error message is displayed.
Proceed to troubleshooting, as described in
the error message.
1
Device reverts to pause mode until the error is acknowledged
2
The error Water shortage is treated as a special case here, as this
is the only case in which the number of consecutively occurring errors
in the menu =>Basic program => Water low count can
be adjusted until the relevant alarm or message is triggered. One
error is generated per measurement cycle.
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