Worcester Greenstore Instruction Manual page 64

Sensor fault
Possible cause 1: Temporary error.
Possible cause 2: Short circuit or broken sensor cable.
Possible cause 3: Defective sensor or incorrect connection.
HTF in under limit T10 (GT10) and HTF out
under limit T11 (GT11)
Possible cause 1: Temporary low heat transfer fluid
temperature.
Possible cause 2: Too low flow on the collector circuit.
Possible cause 3: The minimum heat transfer fluid temperature
has been set too low.
In a ground water system the cause may also be:
Possible cause 4: Blocked filter in the groundwater circuit.
Possible cause 5: The motor cut-out or a fuse on the pump in
the groundwater system has tripped.
Possible cause 6: Faulty pump in the groundwater circuit.
Alarm (GT1)
Sensor return rad.
040622 16:08:15
Info Ackn.
Note
Note
Alarm (GT10)
Pump inlet too cold
040622 16:08:15
Info Ackn.
Alarm (GT11)
Pump outlet too cold
040622 16:08:15
Info Ackn.