28
Troubleshooting
EN
PrimoTherm®
8
Troubleshooting
Any malfunctions that cannot be removed by means of the measures
described in this chapter may only be repaired by the manufacturer.
Also observe the corresponding instructions of the manufacturer in the case
of malfunctions of the circulation pump or the actuator.
Problem
Possible reason
Repair
Noise in the system
Air in the system
Vent the system
Circulation pump not
properly adjusted
Verify correct adjust-
ment of the circulation
pump.
Circulation pump does
not run
Pump defective
Replace the circulation
pump
Other malfunctions
-
Contact the AFRISO
service hotline.
8.1
Replacing the circulation pump
DANGER
ELECTRIC SHOCK CAUSED BY LIVE PARTS
•
Disconnect the mains voltage supply before performing the work and ensure
that it cannot be switched on.
Failure to follow these instructions will result in death or serious injury.
1. Disconnect the mains voltage.
2. Close all ball valves and drain the affected system part.
- In the case of versions with ball valve below the circulation pump, it is
sufficient to close the two ball valves upstream and downstream of the
circulation pump.
3. Replace the circulation pump. Use new seals and tighten the screw con-
nections with 60 Nm.
4. Open all ball valves and perform a tightness test.
5. Fill and vent the system.
6. Connect the circulation pump to supply voltage.
