Van der Ende Pompen B.V.
Maasambacht 4
2676CW Maasdijk
Nederland
Installation manual Envalve series VK, VKF and PVK
Page 16 of 23
7. Errors
Problem
Cause
Solution
1. Valve does
not turn
Control button man
auto
is set to manual
No power supply present.
Blown fuse
Faulty connected drive
Short circuit due to moist
Burned drive
Put the valve in the neutral position! Set the
control button to auto and push against the
connector shaft until a click is heard.
Find the problem and fix the power supply.
Find the cause and replace the fuse.
Check the connections (schematic is in the
annexes).
Find the cause, try to dry the drive, replace
the seal of the drive when needed and
consider a heating element (see paragraph
1.7).
Find the cause and replace the drive(motor),
check the supply voltage and functioning of
the valves (especially check for obstructions
of the paddle).
2. Drive turns
instable/restless
(constant opening
and closing)
Incorrect connected capacitor or loose
contact
To much voltage drop due to long cables or
insufficient diameter
Fluctuating power supply
Drive is told to open ánd close at the same
time
Contact the producer.
Check the supply voltage (at the drive),
calculate voltage drop, replace power cable
when needed.
Check the supply voltage.
Change the control program.
3. Drive fails
regularly
Loose contact in power supply
Bad or defect limit switches
First, make sure the power is switched off!
Check and tighten all contacts.
Replace limit switches
4. Drive doesn t turn
(entirely) to the end
position
Incorrect set limit switches
Defect sprocket in drive
Drive capacitor defect
Too much system pressure or to much
pressure difference over the valve
Obstruction of the paddle
Let the producer reset the limit switches, do
not attempt to do this yourself, warranty will
expire!
Replace the drive (this is often an error due
to obstruction of the paddle).
Contact the producer.
Check and reset the system pressure.
Disassemble the valve (loosen the
flanges/nut and remove valve from system)
and remove obstruction.
Table 6. Errors and solutions.
