Repair; Troubleshooting - ProMinent CONCEPT PLUS Series Operating Instructions Manual

Repair / Troubleshooting
7
Repairs which may be carried out by qualified persons (according to
safety instructions):
• Cleaning a valve
• Replacing the diaphragm (installation instructions included with
For all other repairs consult your ProMinent
8
The pump does not prime despite full stroke action and venting
Cause:
Remedy: Remove suction hose from the supply tank and rise liquid
If unsuccessful, dismantle valves and clean.
Fluid is leaking from the head washer
Cause:
Remedy: Screw in the liquid end anti-clockwise (torque: 4.5 to 5 Nm)
If unsuccessful, replace the diaphragm (installation instructions
included with the diaphragm).
Error/operating indicator not lit
Cause:
Remedy: Use mains voltage as specified on the rating plate.
Error/operating indicator lit red
Cause:
Remedy: Top up supply tank.
Cause:
Remedy: Send pump away for repair.
24

Repair

replacement diaphragm)

Troubleshooting

Crystalline deposits on the ball seat due to valves drying out.
end thoroughly.
The liquid end is leaking at the pump diaphragm.
No or incorrect mains voltage.
Liquid level in the supply tank has reached "low liquid level".
Electronic failure.
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