Xylem CO COM IM Bedienungsanleitung PDF herunterladen (Seite 19)

8. Fault finding chart

PROBLEM PROBABLE CAUSE POSSIBLE REMEDIES

A) No power

B) Automatic switch tripped or fuses

blow

C) Overload protection tripped

D) Faulty capacitor

E) Impeller jammed

A) Water level too low: the foot valve

is not submerged

B) Pump not filled.

Check for leaks

A) Suction lift exceeds pump suction

capacity.

Excessive flow resistance

B) Pump or pipes obstructed

C) Incorrect direction of rotation

(three-phase versions only)

A) Overload protection activation

The pump does not rotate freely.

Viscous liquid

1. The pump does not

deliver

The motor does not

start

2. The pump does not

deliver

The motor does not

start

3. Insufficient delivery

4. Pump stops at short in-

tervals

A) Supply electrical power

B) Reset the switch or replace the

fuses

C) Single-phase: it will reset automati-

cally after cooling down

D) Replace the capacitor

E) Foreign matter between fixed and

rotating parts

A) The mechanical seal could be da-

maged

B) Same as per above

A) Replace suction pipe with one of

larger diameter

Reduce elbows

Remove deposits

Reduce suction lift

B) Clean or unclog

C) See point 6.2

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