7
FAILURES
7.1
Remedy failures
WARNING
In case of a failure always warn the
•
installer.
Remove the power and pressure from
•
the unit before starting repairs. Refer to
§ 7.3 on how to put the unit out of
operation.
After re-opening the system isolation
•
valves, always check for possible
leakages.
WARNING
There are hot parts under the cover. Let
•
the unit cool down before starting
repairs.
1.
Use the failure table in § 7.5 to find the cause.
2.
If necessary, put the unit out of operation. Refer to
§ 7.3.
3.
Remedy the failure.
4.
Reset the unit, refer to § 7.4, or put the unit into
operation again, refer to § 6.2.
7.2
Replace a fuse
For electrical specifications, refer to
•
§ 3.3.
Broken fuses F2 and F3 are indicated by
•
error codes, refer to § 7.5.
1.
Open the cover (A).
2.
Replace the broken fuse.
3.
Close the cover.
4.
Do a check to see if the failure is resolved.
User manual - 3.0
7.3
1.
If the unit is switched on, select the on/off button
and select "turn off" to stop the unit.
2.
Take the plug out of the wall socket.
3.
Close the valve of the inlet line (A) and the valve of
the outlet line (B).
4.
For units of -R and -B versions: Close the valve (C)
in the refill supply line (D).
5.
Connect a drain line (F) to the drain connection (E).
6.
Drain the unit through the drain connection.
7.
Open the air vent screw on the main pump to
completely empty the unit. Refer to the figure in
§ 5.4.2.
A
7.4
1.
At the error or warning pop up, select the button
C
LEAR FAULT
English
Taking out of operation
WARNING
Make sure that it is not possible to
•
unintentionally supply power to the
system.
C
D
E
F
Resetting the unit
.
NOTE
It is only possible to select the button C
when it is yellow. If the button is grey,
FAULT
first solve the error.
B
A
LEAR
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