emmeti SHARK E 4-130 Serie Manual De Instalacion Y Uso página 35

3. Accensione 6. MAINTENANCE/FAULTS
Fault
Pump is not running
although the power
supply is switched on.
Pump is making
noises.
Building does not
get warm.
Cause
Electrical fuse defective.
Pump has no voltage.
Cavitation due to insuffi-
cient suction pressure.
Thermal output of the
heating surfaces is
too low.
Remedy
Check fuses.
Restore power after
interruption.
Increase the system
suction pressure within
the permissible range.
Check the delivery-head
setting and set it to a
lower height if necessary.
Increase setpoint
(see 5.3).
GB GB
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