Worcester GREENSTORE Instruction Manual page 43

HTF in under limit T10 (GT10) and HTF out under
limit T11 (GT11)
Possible cause 1: Temporar y low heat transfer fl uid temperature.
Action: 1. Monitor performance of the heat pump.
2. If the alarm returns, contact the Technical Support
Department.
Possible cause 2: Too low fl ow on the collector circuit.
Action: 1. Check the fi lter.
2. Clean the fi lter if it is blocked.
Possible cause 3: The minimum heat transfer fl uid temperature has
been set too low.
Action: 1. Monitor performance of the heat pump.
2. If the alarm returns, contact the Technical Support
Department.
Anode error
Possible cause 1: Temporar y error.
Action: 1. When large amounts of hot water are used (e.g.
with a bath) the alarm may be given without
there being a fault. Contact the Technical Support
Department at repeated alarms.
Possible cause 2: Faulty electric anode.
Action: 1. Contact the Technical Support Department.
43
What to do if a fault occurs
ALARM (GT10)
HTF (coll) in
060822 16:08:15
Info Ackn.
ALARM (GT11)
HTF (coll) out
060822 16:08:15
Info Ackn.
Alarm
Anode error
040622 16:08:15
Return Info