Emec KMS AC MF, Operating Manual

Page: 48 / 68

48
28. TROUBLESHOOTING
PROBLEM CAUSE HOW MANAGE
Pump does not turn on
• There is not power supply.
• Protection fuse is broken
• Main board failure
• Connect pump to main supply
• Replace fuse, see
⎘
Fuse replacement
procedure
.
• Replace cirucit, see
⎘
Main board replacement
procedure
.
Pump is not dosing but
solenoid is operating
• Foot filter is obstructed
• Unprimed pump (suction hose
is empty)
• Air bubbles in the hydraulic
circuit
• Product to dose is generating
gas
• Clean foot filter
• Prime the pump, see
⎘
How to prime pump
head
• Check valves, hoses and fittings and let air flow
away
• Turn on venting valve and let air flow away. Use
a self-venting pump head model.
Pump is not dosing and
solenoid isn’t operating or
slightly operating.
• Crystals block the balls inside
the valves
• Injection valve obstructed
• Clean valves and try to dose 2-3 liters of normal
water
• Change valves
Display shows ERROR
MEM
Error in data storage
Restore default value, see
⎘
LOAD DEFAULT
procedure
.
Display shows ERROR
DATA
Error in data setting
Check the value set. If correct and the error still
persist, the pump could be undersized
Display shows WRONG
PASSWORD
Error in password enter
Restore a new password, see
⎘
RESET PASSWORD
procedure
Display shows INPUT OPEN
In mA and VOLT working mode only:
no signal input
Check INPUT signal