Maintenance, Service; Summary Of Faults - Biral LX Instrucciones De Instalación Y Funcionamiento

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48
Fault
Pump does not run
Protective motor
switch activated
Short circuit
when pump switched o
Pump emits noises
Radiators do not warm up
english

7. Maintenance, Service

Before commencing maintenance works, do not fail
to put the pump out of action, pull all pins out of
the power supply incl. CEC connection and secure
it against becoming switched on again.
Implementation only by specialist staff.
Observe operating instructions.
Only carry out the works with the plant at a standstill.
Disconnect pump from power supply.
Switch off fuse and mount warning board.
Risk of scalding from emerging medium.
Risk of burning from hot surfaces.

8. Summary of faults

Before removing the terminal box cover and before
any dismantling of the pump, do not fail to switch
off the entire power supply.
Cause
Pump blocked
No voltage in motor
Voltage too low
Pump blocked/polluted
Motor incorrectly
connected
Motor winding defective
Motor incorrectly
connected
Wrong plug
Motor defective
Air in the pump
Cavitation
Pump too powerful
Pump regulation
Pump too weak
Direction of rotation
wrong
Air in the pump
Subject to technical alterations
Remedy
deblock, see section 6.4
check switch and fuses
check power supply
check control and mains
deblock heating, flush
connect correctly
replace pump
connect correctly
see section 5.1
replace pump
deaerate system and pump,
see section 6
increase system pressure/
reduce temperature
smaller electric setting/
smaller pump
check pump regulation
install more powerful pump
correct direction of
rotation
deaerate system and pump,
see section 6

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