T.I.P. HWW INOX 1000 Plus Mode D'emploi page 17

11. Maintenance and troubleshooting
Prior to carrying out any maintenance work, the pump must be separated from the electrical
mains. If you fail to separate the unit from mains, there is a risk of an inadvertent start of the
pump.
We decline any liability for damage caused by inappropriate repair attempts. Any damage
caused by inappropriate repair attempts will avoid all warranty claims.
Regular maintenance and thorough care will reduce the danger of possible malfunction and contribute to an
extension of the lifetime of your unit.
To prevent possible malfunction, it is recommended to check the occurring pressure and the energy consumption
at regular intervals. Also, the pre-pressure (atmospheric pressure) in the pressure tank should be checked
regularly. To do so, please separate the pump from mains, then open any consumer component in the pressure
line - for instance, a water tap - to release the pressure from the hydraulic system. Subsequently, unscrew the
protection cap of the tank valve (12). On the tank valve, please use a pressure gauge to check the pre-pressure.
It should read 1.5 bar, otherwise it has to be corrected.
If any water is leaking out of the tank valve, the membrane is defective and should be replaced. A high-quality,
food-proof membrane (item no. 30905) is available as a spare part.
If the device is not in use over some extended period of time, both the pump and the pressure tank should be
emptied using the devices provided for this purpose.
Water left in the pump may freeze in case of frost and thus cause considerable damage. Please store the pump in
a dry, frost- protected place.
In the case of malfunction, you should first of all check whether it was caused by an operating error or some other
reason which cannot be attributed to a defect of the device - for instance a power failure.
The list below shows some possible malfunctions of the device, possible causes and tips on their elimination. All
the measures referred to may only be carried out with the pump being separated from the electrical mains. If you
yourself feel unable to eliminate any of these malfunctions, please contact the customer service department or
your point of sales. Any repair beyond the scope specified below must only be performed by qualified staff.
Please bear in mind that all warranty claims will become void in the case of damage caused by inappropriate
repair attempts, and that we decline any liability for any ensuing damage.
MALFUNCTION
1. The pump is not discharging any
liquid, the motor is not running.
2. The motor is running, but the pump is
not discharging any liquid.
3. The pump stops after a short time of
operation because the thermal motor
protection feature has triggered.
POSSIBLE CAUSE
1. No current.
2. Thermal motor protection feature has triggered.
3. The capacitor is defective.
4. The motor shaft is jamming.
5. Wrong setting of the pressure switch.
1. The pump housing is not filled with liquid.
2. Air penetrates into the intake line.
3. Suction height and/or discharge height too great.
1. The electrical supply does not correspond to the
information given on the type plate.
2. Pump or intake line are blocked by solids.
3. Liquid is too viscous.
4. Temperature of liquid or environment is too high.
5. Pump is running dry.
1. Please use a device complying with GS (German
technical supervisory authority) to check for the
presence of voltage (safety information to be
observed!). Please verify the correct position of the
plug.
2. Separate the pump from the electrical mains, allow
the system to cool down, eliminate cause.
3. Please contact the customer service department.
4. Check the cause, eliminate the reason for the
jamming of the pump.
5. Please contact the customer service department.
1. Fill the pump housing with liquid (please refer to
"Putting into operation" section).
2. Check to make sure that:
a.) the connection points of the intake line are tight;
b.) the inlet opening of the intake line including the
check valve (non-return valve) are immersed into the
liquids being discharged;
c.) the check valve (non-return valve) with the filter is
tight and not jammed;
d.) no siphons (i.e. permanently liquid-filled loops),
kinks, counter- slopes or narrow spots are present along
the intake lines.
3. Change the arrangement of the installation so that
the suction height and/or discharge height will not
exceed the max. value.
1. Please use a device complying with GS (German
technical supervisory authority) to check the voltage of
the lines of the connection cord (safety information to
be observed!).
2. Remove possible congestion.
3. Pump may not be suitable for this liquid. If feasible,
the liquid should be thinned.
4. Make sure that the temperature of the liquid being
pumped and the environment do not exceed the max.
admissible values.
5. Eliminate causes of dry-running.
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ELIMINATION
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