Fault Finding; Disposal - Grundfos GT-C Installation And Operating Instructions Manual

7. Fault finding

Warning
Before starting work on the product, switch off the power supply.
Make sure that the power supply cannot be accidentally switched on.
Make sure that the tank is pressureless before removing it from the pipe system.
Close the isolating valves and release the precharge pressure through the air valve.
Fault Cause
1. Frequent a)
starts/stops.
b)
c)

8. Disposal

This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
Incorrect precharge pressure.
Diaphragm broken. Water escapes
if the air valve is pushed down.
Leakage in pipework.
Subject to alterations.
Remedy
Adjust the pressure according to section
4.3 Precharge pressure.
Replace the GT tank.
Check and repair the pipework.
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