Rohde ST 411 - General Faults and Causes; Replacing the Control Unit Fuse

86 / 327 - EN -
11.2. General faults
Fault
Cause
Solution
The control unit cannot
be switched on.
The kiln is not supplied with electricity.
⇒ Check the supply line/mains plug of
the kiln.
⇒ Check the fuses of the house
connection of the kiln.
⇒ Observe the operating instructions
for the kiln.
A safety device on the kiln has triggered and
has completely switched off the energy
supply to the furnace.
Observe the operating instructions for
the kiln.
The control unit cable is not connected to
the kiln or the connection is incomplete.
Check the connection cable.
The key switch for switching on the control
system on the kiln is switched off.
Observe the operating instructions for
the kiln.
The fuse in the control unit has tripped and
must be replaced.
Observe Section 11.3. in this instruction
manual.
The control unit is
showing an error
message.
An error has occurred in the operation of the
control system.
Observe Section 9. in this instruction
manual.
11.3. Special malfunction: Replacing the control unit fuse
If the control unit cannot be switched on and other faults have been excluded, replace the fuse in the housing of the
control unit.
Required spare part: 3.15 A T micro-fuse
ROHDE item no.: 708051
Replacing the fuse:
Step Activity Remark
1
Switch the control unit off.
2
Switch off the kiln completely.
Set the main switch on the kiln to the “0/OFF” position
or pull the power plug.
3
Disconnect the control unit connection cable
from the kiln.
4
Remove the fuse carrier on the underside of the
housing.
Tool:
7 mm slotted screwdriver
Place the tool in the slot in the fuse holder.