HB-100/140/160Z1
Temperature Control Unit
Faults
116
O8285-EN 2017-12
10.3 Determine the cause of a fault
Cause of a fault
Proceed as follows to identify the possible causes for a current fault
indication:
1.
Press the
key to display the online help for the pending
fault indication.
Fault overview
Fig. 83: Logbook Alarms
You can display the last 10 fault indications that occurred as
follows:
1.
Open the
Fault finding
menu page.
The fault indications overview is displayed. Fault indications
marked with "S" occurred during the start-up phase of the
temperature control unit.
2.
Select desired fault indication.
3.
Press the
key.
The online help is displayed for the selected fault indication.
10.4 Troubleshooting chart
Fault
Possible cause
Rectification
Rectified by
Undercurrent heater
or
Overcurrent heater
Not connected to the correct
mains voltage
Connect to the correct mains
voltage
Certified
electrician
Plug connections not correctly
connected or broken
Check plug connections
Certified
electrician
Where applicable, connect
properly or replace
Semiconductor relay defective Replace semiconductor relay
Certified
electrician
Heater defective
Repair or replace heater
Certified
electrician
Undercurrent pump
or
Overcurrent pump
Not connected to the correct
mains voltage
Connect to the correct mains
voltage
Certified
electrician
Pump defective
Repair or replace pump
Qualified
personnel
Phase missing
Mains connection not made
correctly
Make mains connection
properly
Certified
electrician