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Troubleshooting - Zehnder Pumpen ZKH 15 Operating Instructions Manual

Fully automatic condensate removal pump

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especially after longer standstill period particulates, at times highly acidic, can affect or destroy parts of the
tank.
The upper part of the pump can be removed without the use of tools by carefully moving the 4 laces on
the upper part of the pump outward (see figure 8). The upper part can then completely be removed
and the float switch and the bottom part of the pump body as well as the tank (bottom part) are freely
accessible. These parts can now be washed with warm water and mild soap. After cleaning, place
the upper part on the lower (tank) part. A latching can be heard. Connect the pump to the mains and fill
water into the tank through one of the inlets. After having filled the tank with about 1.5 l the system will
start automatically and discharge the water into the canalization.
WARNING: All points pertaining to installation and start up (see point 4) must be observed
when pump is returned to service.
WARNING: Unit must be disconnected from the power source before
servicing or performing pump maintenance!
7 . Warranty
The warranty period for this product is 24 months from date of purchase. Proof of purchase must be
provided.
Any material or manufacturing defect within this timeframe will be rectified or repaired free of cost. Any
damage resulting from misuse, in particular non-observance of the instruction manual and excessive
wear and tear is excluded from warrantee. Any unauthorized modifications or opening of the product will
void the warranty.

8. Troubleshooting

Problem
Low flow rate
Motor is idle or does not start
Motor running, pump does not
deliver
Pump does not operate
automatically
Probable Cause
Outlet piping clogged or kinked
Check valve contaminated
Head to large
No voltage present
Plug not plugged in
Pump blocked by mud or solids
Defective motor
Defective electronics
Outlet piping clogged or kinked
Check valve contaminated
Float switch contaminated
Micro-switch defective
8
Remedy
Clean / remove kink
Clean
Reduce head
Check power supply
Plug in plug
Clean tank and pump body
Replacement by qualified personnel
Replacement by qualified personnel
Clean / remove kink
Clean
Clean
Replacement by qualified personnel
GB
B

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