3.6. Maintenance / Cleaning
The pump is designed to have a low maintenance requirement and under normal conditions will be
very reliable. However, the filter housing and all rotating parts must be cleaned regularly.
Fig. 4: Rotor of Eco Runner incl. cover plate
First of all, remove pipe connections and undo the bayonet on the pump housing. Now, the impeller
assembly can be taken out. Caution: This part is a tight fit because it has an "O" ring seal and
must be removed carefully so as not to break the ceramic shaft. It can be cleaned under running
water and then be re-assembled. When the rotor is completely dismounted, also the holes in the
cover plate (Fig. 3) have to be cleaned. They provide for sufficient water cooling of the rotor.
3.7. Failures
If the pump fails to operate, check power connection and fuse. If no fault is found, the pump may
be blocked and must be cleaned. See maintenance / cleaning above.
If the pump is noisy, the pump head and rotor (3, 4) have to be cleaned. If the impeller (3) is
damaged, it has to be changed.
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