EHEIM professionel4+ - Prefilter Cleaning Procedure; General Filter Cleaning; Pump Chamber Cleaning

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Note: Renew the blue filter mat after the third cleaning.

8.1 Prefilter cleaning

1. Disconnect the power cable (31). 2. Disassemble the safety adapter (13) and the pump head (17) (chapter

3, step 1 - 3). 3. Remove the prefilter (4). 4. Remove the blue filter mat (1). 5. Rinse the blue filter mat (1)

under running, lukewarm water (replace if required). 6. Empty the prefilter (4) and rinse it. 7. Insert the blue

filter mat (1) into the prefilter (4). 8. Insert the prefilter (4) with the blue filter mat (1) (place onto supports ﬁ

arrows). 9. Check and, if required, clean the seals and treat them with EHEIM care spray (No.

4001000). 10. The prefilter flap (3) must be unobstructed. 11. Attach the pump head (17) (observe fitting

position) and close the locking clips (8). 12. Put the filter system into operation (chapter 5, step 17 - 23).

1. Disconnect the power cable (31). 2. Disassemble the safety adapter (13) and the pump head (17) (chapter

3, step 1 - 3). 3. Remove the pre-filter (3), the filter cartridge with the screened cover and white filter fleece.

Renew the white filter fleece (6) during each cleaning process. 4. Remove all filter inserts. 5. Rinse the filter

inserts (7) and filter media with water until they are clean (see EASY CLEAN function). 6. Empty the filter tank (9).

Note: Only carry out steps 7 to 8 during every third to fourth general cleaning. By mixing used and new sub-

strate media, the required bacteria cultures remain intact.

Caution: Do not overfill filter inserts as, otherwise, their accurate fit is no longer assured.

7. Leave one-third of the used EHEIM SUBSTRAT pro and EHEIM bioMECH in the filter cartridge. 8. Re-fill two-

thirds of the used EHEIM SUBSTRAT pro and EHEIM bioMECH. 9. If required, completely renew EHEIM

MECH pro. 10. Re-insert all filters and filter inserts (chapter 5, step 8 - 10). 11. Clean the hose system using

an EHEIM universal cleaning brush (No. 4005570). 12. Insert the prefilter (4) with the blue filter mat (1) (place

onto supports ﬁ arrows). 13. The prefilter flap (3) must be unobstructed. 14. Check and, if required, clean the

seals and treat them with EHEIM care spray (No. 4001000). 15. Attach the pump head (17) (observe fitting posi-

tion) and close the locking clips (8). 16. Put the filter system into operation (chapter 5, step 17 - 23).

8.2 General cleaning

Caution: The caramic axis may break. Clean carefully!

1. Disassemble the safety adapter (13) and the pump head (17) (chapter 3, step 1 - 3). 2. Turn the pump

cover (23) and remove it. 3. Disassemble the pump wheel (22). 4. Clean the pump chamber, pump cover,

pump wheel and lubrication duct with the EHEIM cleaning set (No. 4009560). 5. The pump wheel (22) must

be clean and unobstructed (see arrows). Observe the installation position of the ceramic sleeve (a) (only

in professionel

- 350 Type 2274). 6. Insert the pump wheel (22) into the pump chamber. 7. Close the

pump chamber with the pump cover (23) observing the cutout and studs (arrows). 8. Disassemble the bracket

(14) and the float (15) on the top side of the pump head (17) and clean them. 9. Install the check valve

(14/15) (observing the installation position; the float must be unobstructed). 10. Attach the pump head (17)

(observe fitting position) and close the locking clips (8). 11. Put the filter system into operation (chapter 5,

step 17 - 23).

8.3 Cleaning the pump chamber

. . . Top part of filter can’t be closed?

9 What to do if . . .

Cause Solution

Filter inserts have been inserted wrongly. Push filter inserts and pre-filter in until they lie flush on top of each other.

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