7
Troubleshooting
Error in temperature display
"F0"
Handle is not in its support
Insert handle in its support to allow thermal process for
reducing bacterial count to start (jet connection must
point to the rear of the unit).
Replace handle (Art.No. 502.0963.0)
"F1"
No water (water pressure < 0.5 bar
Check, whether the water supply delivers a pressure of at
least 2 bar (did you open the water-faucet?).
Filter clogged?
"F2"
- 5V is missing (supply voltage on the control
board)
Inform the service staff.
"F3"
Break of the safety NTC
Inform the service staff.
"F4"
Safety switching does not react (49°C comparator)
Have the safety switching (temperature controller)
checked by the service staff.
"F5"
Break of the regulating NTC
Inform the service staff.
"F6"
Different switch settings in the handle holder
Handle must be correctly inserted in its support.
Inform the service staff.
"F7"
Temperature too high (>48°C), display only in the
stimulation and irrigation mode but not in the
thermal cleaning procedure
Check, whether temperature setting is too high. If neces-
sary, adjust desired temperature to a value of <48° C by
means of the coding switches.
Inform the service staff.
"F8"
Short-circuit of the regulating NTC
Have temperature feeler of the regulating NTC checked by
the service staff.
"F9"
No heating performance (excess temperature
switch), def. semi-conductor relay or regulator)
Inform the service staff (internal excess temperature
switch might have released).
Important
•
If errors cannot be corrected, inform the GN Otometrics service staff of your supplier. Do not attempt to
repair the unit.
Otometrics - Aquamatic II
25
7 Troubleshooting
