PFT G4 - Troubleshooting table

Mixing Pump PFT G4
Troubleshooting
56 2007-09-05
Pos: 7.19 /KN2006-SM/S törungen/005 1.1 Stör ungstabelle_Titel @ 9\ mod_1144442349705_29 3361.doc @ 293711
7.3 Troubleshooting table
Pos: 7.20 /KN2006-Pr ojekte/Knauf/Störu ngen/Mischpumpe PFT G4/1. 1 Störungstabell e @ 12\mod_1152526292830_ 293361.doc @ 298842
Problem Possible cause Corrective action to be
corrected by
Insufficient water pressure Check the water feed line, clean the
debris collector sieves (see chapter
"Maintenance" in this Operating
Manual)
Operator Machine does
pump water
Manometer shows less than 2.2.
bar
Switch on the booster pump Operator
Power supply line not functioning Repair the electric power supply line Certified
electrician
Main switch not switched on Switch on the main switch Operator
Residual current operated circuit
breaker has tripped
Reset the residual current operated
circuit breaker
Certified
electrician
Indicator light yellow, fault sense
of rotation is illuminated
Change the sense of rotation, on the
main reversing switch, push the
metal bracket in the opposite
direction (see chapter "Switching on
and starting up" in this Operating
Manual)
Operator
Motor protection switch tripped On the control panel turn the motor
protection switch to position 1
Service
technician
"Operation ON" button not pressed Press button "Operation ON" Operator
Contactor defective Replace the contactor Certified
electrician
Fuse defective Replace fuse Service
technician
Machine does
not have
electricity
Water safety switch incorrectly set Adjust the water safety switch Service
technician
Pressure drop in the remote
control is insufficient due to
blocked air line or air nozzle pipe
Clean the blocked air line or air
nozzle pipe (see chapter
"Maintenance" in this Operating
Manual)
Operator Machine does
not supply
air
Air-safety switch incorrectly set Adjust the air-safety switch Service
technician