7-17
Troubleshooting
Operator Manual
920512-768
26. Alarm sounds and screen displays:
ALARM: TRAVELER
SENSORS DEFECTIVE
Printer records:
*ALARM TRAVELER
SENSORS DEFECTIVE
HH:MM:SS YY/MM/DD
Control detects traveler system in up and down positions
simultaneously.
1.
Press
Silence Buzzer
or
ACK
touch pad to silence
alarm buzzer.
2.
Defective traveler cylinder left position sensor (always
closed) – Call STERIS.*
3.
Defective traveler cylinder right position sensor (always
closed) – Call STERIS.*
27.
If pH Neutralizing System option is
present
, pH Can't Be Neutralized
Alarm sounds and screen displays:
ALARM: pH CAN'T BE
NEUTRALIZED
Printer records:
*ALARM pH CAN'T BE
NEUTRALIZED
HH:MM:SS YY/MM/DD
Water in cooldown tank is not neutralized after 16 trials.
1.
Press
Silence Buzzer
or
ACK
touch pad to silence
alarm buzzer.
2.
Neutralizing chemical container empty – Replace empty
container.
3.
Defective cooldown tank lowering pH injection pump –
Call STERIS.*
4.
Defective cooldown tank raising pH injection pump –
Call STERIS.*
5.
Defective pH probe – Call STERIS.*
28. Alarm sounds and screen displays:
ALARM: WATER
TOO LONG TO HEAT
Printer records:
*ALARM WATER
TOO LONG TO HEAT
HH:MM:SS YY/MM/DD
Temperature sensed by RTD has not reached set point
within specified time.
(Water temperature time-out alarm (15:00) has elapsed before
recirculating water temperature reaches setpoint).
1.
Press
Silence Buzzer
or
ACK
touch pad to silence
alarm buzzer.
2.
Building steam supply valve not fully open or closed –
Check and open building steam supply valve as neces-
sary.
3.
Not enough building steam pressure – Call STERIS.*
4.
Water heating alarm time too short – Call STERIS.*
5.
Steam pressure below specifications – Call STERIS.*
6.
Verify unit steam valve operation – Call STERIS.*
7.
If condition reoccurs, call STERIS.*
* Service charges may be incurred. Consult your warranty for details.
Table 7-4. Troubleshooting Chart - Alarm and/or Printout (Cont’d)
ALARM MESSAGE
POSSIBLE CAUSE AND CORRECTION