Installation, Operating and Maintenance Instruction
Model TVS
TVS 100-english
page 34
Revision 04
Article No 771072023
Issue 01/2011
Meaning of code number for cause and method of repair
1.
Motor protection switch is wrongly set
•
Check setting or replace the motor protection switch
2.
Phase failure
•
replace defective safety fuses
•
Check pipes for damage
3.
Wrong frequencies or under voltage
•
Compare voltage and frequency with data on the rating plate
4.
Rotates in the wrong direction
•
Swap over phases of power supply
5.
Motor winding or electrical cable defective
•
Ask for assistance
6.
Motor gets caught at the star delta at the star stage
•
Replace star delta converter
7.
Voltage loss due to burned out safety fuse
•
Replace safety fuse
8.
Voltage loss due to defective feeding cables
•
Renew cables
9.
Voltage loss due to motor protection switch being released
•
Establish the causes
•
Reset the motor protection switch
10. Pump is blocked due to impurities
•
Dismantle and clean the pump part
11. Pump does not reach the handled liquid due to it not being installed deeply enough
•
Check the water level
•
Hang the unit deeper
12. Defective coupling
•
Replace shaft + coupling
13. Gate valve closed
•
open
14. Suction filter displaced by foreign bodies
•
Take out pump and clean the suction filter
15. uninspected, wrong direction of rotation
•
change direction of rotation
16. Gate valve not quite open
•
open
17. Pipes constricted by foreign bodies
•
clean pipes
18. Well filter blocked
•
Consult well sinker company
19. Leakage in the delivery pipe
•
Check pipes
20. Impellers worn because liquid handled is aggressive or contains sand
•
Dismantle unit and replace the impellers (be careful when selecting material)
21. Impellers worn due to cavitation
•
Check operating conditions
22. too little speed due to under voltage or wrong frequencies
•
Check mains voltage and mains frequency
23. too little speed because running in 2 phases
•
check electrical branch circuit connections and safety fuses
24. Flow rate too high or too low
•
Adjust valve