IWAKI IX-C060 S6 FA-RF, Instruction Manual

Page: 54 / 84

54
Troubleshooting
Troubleshooting
First check the following points. If the following measures do not help remove problems, con-
tact your nearest distributor.
■ Pump
States Possible causes Solutions
The pump does not run
( The operation LED
does not light or the
screen is blank.).
Power voltage is too low. • Observe the allowable voltage range of
90-264VAC.
The pump is not powered. • Check the pump is switched on.
• Correct wiring.
• Replace a breaking wire to new one.
Liquid can not be
pumped up. Air lock in the pump • Expel air. See page 33.
Air ingress through a suction line • Reroute piping.
An O ring is not fi tted to a valve set. • Fit O ring to the valve set.
Foreign matters are stuck in the pump
head valves. • Dismantle, inspect and clean the valves.
Replace as necessary.
A ball valve is stuck on a valve seat. • Dismantle, inspect and clean the valve.
Replace as necessary.
A vale seat has been pressed in the
valve guide. • Do not push the valve seat into the valve
guide. See page 59.
A fl ow rate fl uctuates. Air stays in the pump head. • Expel air. See page 33.
Overfeeding occurs. • Mount a back pressure valve to keep a
constant level of discharge line pressure.
Foreign matters are stuck in the pump
head valves. • Dismantle, inspect and clean the valves.
Replace as necessary.
Diaphragm is broken. • Replace the diaphragm. See page 59.
Pressure fl uctuates at an injection
point.
• Maintain a pressure constant at an injec-
tion point by optimizing piping or by relo-
cating the point.
Liquid leaks. A fi tting is loose. • Tighten the nut to fi x the fi tting.
Loose fi t of the pump head • Retighten the pump head. See page 32.
An O ring is not fi tted to a valve set. • Fit O ring to the valve set. See page 58.
Diaphragm is broken.
A leak from the drain port (Vent hole) • Replace the diaphragm. See page 59.