INDRA HYDRO TECH PUMPS PVT. LTD.
316, 1st Floor, 8th Cross, 4th Phase, Peenya Industrial Area, Bengaluru - 560 058, Karnataka, India
Tel.: +91 80 2836 2916, Fax: +91 80 2836 3048, Email: [email protected], www.ihpindia.in
* We reserve the right to amend specification without prior notice.
Instruction Manual
a. The fuses are blown
b. The circuit breaker has tripped
c. No electricity supply.
d. The motor protection has cut off the
electricity supply due to overload.
Cause
Remedy
Fault
e. The drop cable is defective.
f. Over-voltage has occurred.
1. The pump does not run.
2. The pump runs but gives
no water.
a. The discharge valve is closed.
b. No water or too low water level in well.
c. Check valve is stuck in its closed position.
d. The suction strainer is closed.
e. The pump is defective.
a. The draw-down is larger than anticipated.
b. The valves in the discharge pipe are
partly closed/blocked.
c.
The discharge pipe is partly chocked by impurities.
3. The pump runs at
reduced capacity.
4. Frequent starts and stops.
e. The pump and the riser pipe are partly
chocked by impurities.
f. The pump is defective.
d. The non-return valve of the pump is blocked.
g. Hole in discharge pipe.
h. The riser pipe is defective.
i.Under-voltage has occurred.
a. The differential of the pressure switch
between the start and the stop pressures
is too small.
b. The water level electrodes or level
switches in the reservoir have not been
installed correctly.
c. Non return valve is leaking, stuck half-open
or damaged
d. The supply voltage is unstable.
e. The motor temperature is too high.
Replace the blown fuses. If the new fuses
too blow, check the electrical installation and
the drop cable.
Reset the circuit breaker.
Contact the electricity provider.
Check for motor / pump blockage.
Repair/replace the pump’s cable.
Check the electricity supply.
Open the valve.
Allow water to get collected.
Pull the pump and clean or replace the valve.
Pull the pump and clean the strainer.
Repair or replace the pump.
Increase the installation depth of the pump.
Throttle the pump or replace it with a smaller
capacity model
Check and clean/replace the valves as necessary.
Clean/replace the discharge pipe.
Pull the pump and check/replace the valve.
Pull out the pump. Check and clean or replace
the pump, if necessary. Clean the pipes.
Repair/replace the pump.
Check and repair the piping.
Replace the riser pipe
Check the electricity supply.
Increase the differential. However, the stop
pressure must not exceed the operating pressure
of the pressure tank, and the start pressure
should be high enough to ensure sufficient
water supply.
Adjust the intervals of the electrodes/level
switches to ensure suitable time between the
cutting-in or cutting-out of the pump. See
installation and operating instructions for
automatic devices used. If the intervals between
start/stop cannot be changed via the automatics,
the pump capacity may be reduced by throttling
the discharge valve.
Pull the pump and clean/replace the
non-return valve.
Check the electrical supply.
Check the water temperature.