Possible Cause:

pump/s blocked due to excessive debris in pit
electrical fault
check valve blocked

Solution: 

Can the pumps be run in manual mode?
Ensure the pit is clean with no sludge present
Megger test pump/s
Remove pumps and clear blockage
Test check if valves are free of debris

Possible Cause:

faulty float switch (open circuit)

incorrectly wired into controller

Solution: 

check wiring
check functionality with megger
replacement float required due to water ingress

 

 

Possible Cause:

faulty float switch (open circuit)

incorrectly wired into controller

dipswitch configuration not set correctly

Solution: 

check wiring
check functionality with megger
is dipswitch #6 in the upward position (5 sec delay)
replacement float required due to water ingress

Possible Cause:

airlocked
jammed impeller
capacitor blown

Solution: 

switch power to system off/on
replace capacitor
de-airlock pumps

Possible Cause:

system in high-level alarm
pump/s in fault
isolation valve closed
high-level alarm caught on pumps/wall of the tank
overloads tripped

Solution: 

pump impeller need to be cleared of blockage
electrical fault with pump
open isolation valve
re position floats to allow free range of motion
check overloads and ensure they are set at slightly more than pump FLC (Full Load Current)

Possible Cause:

system in service interval reminder alarm

Solution: 

switch off power to the controller via a red switch, whilst off press and hold the mute/reset button and switch the isolator back on. After 5 seconds, the alarm will sound and the fault will be cleared

Possible Cause:

start/stop float set too low

Solution: 

ensure start/stop float is set to switch the pump off before water level gets below 1/3 of the pump

Possible Cause:

Incoming power supply is not present
The internal circuit breaker is off
The ribbon wire for the touch panel is not aligned on PLC

Solution: 

Ensure power supply to the controller is stable
Switch the main circuit breaker on
Ensure all pins are aligned when connected and orientation is correct

This depends on the type of controller;
– High Level Alarm Controller: the float is connected to the two terminals labelled “input”.
– Monitor Panel: the float is connected to the terminals labelled “High Level Input 12 Vdc”
– Single & Dual Pump Controller (2 float set-up): The start/stop float is connected to terminals “Input 3 start level”. The high-level float is connected to terminals “Input 4 high level”.

The float is a generic Normally Open-Normally Closed Switch.
Black: Common, Blue: Normally Closed, Brown: Normally Open.

Use the black and brown wires to connect to the input terminals.

The float switch is not polarity sensitive.

a) The control panel must be in a fixed position.
b) Adequate power supply with circuit breaker protection must be connected to control
panel and switched on.
c) For dual pump systems, we require a minimum of 2x 40mm conduits with long radius bends installed from the pit to the controller including mechanical protection in accordance with AS3000 as required (speak with your electrician for clarification if needed).
Larger conduits (50/65/80mm dia) will be required for:
• When Conduit runs longer than 15m
• More than 3 bends
• Large pump cables (refer to recommendation/quotation for conduit size).
• Pump stations having more than 2 pumps.d) Pumps have been lowered into pit and coupled to the discharge pipework.
e) Pump and Float or Probe cables have been pulled through conduits and into the controller.
f) Power supply is connected.
g) All penetrations into the pit have been sealed.
h) Pit discharge outlet has been connected to the rising main pipe work.
i) Test water must be available.

On a single pump station 1x 40mm conduit is required from the pit to the controller including long radius bends. On a dual pump system, 2x 40mm conduits are required from the pit to the controller including long radius bends. (refer to note ‘5.c)’ for conduit upsizing requirements)

The hole will need to be dug 150mm deeper than the height of the pit (including height of pit cover or safety grate) and 400mm greater than the diameter of the pit.

All pits need to be vented to atmosphere in accordance with local authority requirements. (For sewage, a minimum DN80 is required).

Above Ground Pump Stations: cable gland penetrations are generally made prior to delivery – conduits can be installed from the gland location in accordance with site requirements.
Below Ground Pump Stations: Conduits should penetrate higher than the discharge outlet, preferably closest to the top of the pit, allowing for minimum cover per relevant authority requirements.

The power requirements vary from system to system. The available power supply
(Amperage) should exceed the combined pump/s current draw – the current draw (Full Load Amps) can be found on the pump name plate.
For example: 2 x 4.3Amp pumps require at least an 8.6Amp power supply.

Concrete back-fill is usually not required. Concrete to above anti-floatation ring to act as ballast is only required when there is ground water present. Refer to full installation manual for details

Single automatic pumps can simply plug into a standard GPO (power point) and do not normally require commissioning.

Pumps supplied with a monitor panel are hard wired and are okay to switch on after connection by a qualified electrician.

Please refer to the recommendation (quotation) provided.

Is system commissioned? Need to commission first, if not commissioned, the float setup is most likely wrong.

Ask to open fron door and say which red LED is illuminated.

If level alarm LED is lit up:

• High level float has been lifted – chewck not caught on anything and is wired correctly with black and brown wires
• Are pumps running? Is the pit full? (may need to open lid to look)
• If pumps are not in fault and have pumped the water down, I may have just been caused by an large influx of water (alarm should reset when float drops – if it does not, there is a float issue or dip switch 6 is set to on – should be off)
• Fault can also be reset by holding down reset button

If pump fault LED is lit up;

• Are both pumps in auto mode?
• Is the LED solid light or flashing?

If solid:

• Is overload set to just above pump running amps?
• Is voltage low? This will cause high current draw. Backup power systems will often run at a lower voltage so current draw will be higher during this time – adjust overload if needed
• Pump could be jammed with foreign object. Try resetting fault first to see if it has passed. If trips again, remove pump to inspect. Does impeller turn by hand? (with power isolated)
• Measure current draw, voltage and resistance?
• If resistance is low (normally infinite), probably is water in cable (was cable extended or joined?) – Need to replace cable
• Reset fault after problem cleared

If flashing:

• Pump lost prime, check water level in pit, adjust floats and reset fault

If pump was left in manual mode, it will have run dry and damaged pump. Will need to replace pump if this is the case.

• Overload has tripped or high level float is up
• Is overload setting correct?
• Reset overload by flicking black switch and try again
• If trips again, complete checks as above for solid LED in dual pump controller
• Is tank full of water? Check high level float – Is it caught on something? Is it wired in correctly?
• Reset overload and check float and try again.

• Is tank full and float up? If so, check pump operation and pump float position. As above
• Is the power on to the pump? (normally plugged into GPO)
• If tank is empty, check high level float is not caught on anything and is wired in correctly (black and brown wires)

• Dirt/mud in pump causing overload to trip
• Wiring float – use brown and black wires (into input on HLA’s)

Possible Cause:

Incorrect wiring of conductivity probes

Solution: 

Probes holder colour coded to match terminals inside controller

Possible Cause:

Pump running dry

Pump is airlocked

Solution: 

Ensure incoming water supply is present
Bled pump via bled point

Possible Cause:

Sump has high water levels
Pump is in overload fault

Solution: 

Pump down sump to normal working level

Ensure pump isn’t blocked/jammed

Possible Cause:

No foot valve installed on the suction line

Solution: 

Install foot valve on pipework in sump