Manual JBL CristalProfi e1901 (page 31 of 201) (All languages)

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Impeller and/or shaft tted crooked, shaft broken,

rubber bearings of shaft missing, bayonet lock on

impeller casing not positioned correctly

Dismantle, check, replace faulty parts and re-

assemble. Check shaft and bayonet lock correctly

positioned.

Impeller missing or blocked by gravel, wormgear

casing or impeller faulty

Clean impeller casing, t intact impeller

Filter capacity greatly reduced

Cause Solution

Stopcocks levers on pump head not in “OPEN”

position

Check positions and correct them

Hose connection block dirty

Remove hoses and use suitable brushes to clean

hose connection block whilst in position with

stopcocks in “OPEN” position

Hoses kinked etc. Check hoses for kinks, constrictions etc.

Intake strainer blocked Clean intake strainer

Hoses blocked with sediment Clean hoses with cleaning brush

Filter material heavily soiled

Clean lter material (particularly pre-lter

material).

Filter material lled into net bag

Do not ll long-term biological lter material e.g.

JBL MicroMec, JBL Sintomec etc. in nely meshed

net bags. For special problem solutions, only use

the original CristalPro lter material with the

appropriate foam edge.

Filter material not cleaned thoroughly

Remove lter material from lter basket and

clean.

Incorrect lter material used

Fill ne lter material e.g. lterwool loosely

into the lter baskets so that water ow is not

obstructed.

Pump dirty

Clean pump chamber, impeller and cover with

cleaning brush (10)

Water does not circulate correctly Repeat start procedure (5)

Impeller and/or shaft tted crooked, shaft broken,

rubber bearings of shaft missing, bayonet lock on

impeller casing not positioned correctly

Dismantle, check, replace faulty parts and re-

assemble. Check shaft and bayonet lock correctly

positioned.

Too many accessories attached to hose system

Accessories (e.g. UV-C clarier etc.) reduce water

ow. Remove accessories or operate with own

separate water circulation.

Air in ﬁlter

Cause Solution

Connection of telescopic suction pipe is above

the surface of the water

When carrying out a partial change of water,

siphon o water to approx. 5 cm above the

connection only. Otherwise disconnect plug.

Filter is positioned too high

The top of the pump head should be at least 20

cm below the surface of the water, the further the

better.

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JBL CristalProfi e1901 Manual

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