TROUBLE SHOOTING GUIDE
UNIT STARTING AND OPERATION
STARTING
When the unit is connected to the electrical supply, the green led
“Power On”
lights up and the yellow
led
“On”
(pump in operation) indicates that the pump has been started.
The pump continues to operate for a few seconds enabling the system to fill and to reach the required
pressure.
If the failure (red) L.E.D. lights up, this indicates that the pump is out of water or priming is incomplete.
In the event of this happening, check water supply to pump. If all is in order keep the RESTART
button depressed with a tap open and wait until the red failure light goes out. When the button is
released and the tap closed, the control unit will stop the pump at its maximum pressure.
FUNCTIONING
The unit is programmed to perform all the pump control operations automatically.
When particular operational breakdowns occur, such as water failure, obstruction of the suction pipe
etc, the unit recognizes the breakdown and the red led
“Failure”
lights up, at the same time a stop
signal is sent to the pump to prevent damage caused by its working in the absence of water. After
rectification of the failure that has caused the blockage, the system is restarted by pressing the
“Restart”
button.
Symptoms
Probable Cause
Recommended Action
Pump will not start.
Control module failure
light illuminated.
Water supply low.
Inlet fi lter blocked (if fi tted).
Electrical supply.
Static inlet or outlet head
is greater than permitted.
Check water level in the supply tank and all stopcocks are
open.
Reset the control module by depressing the restart button.
Remove and clean fi lter gauze.
Reset control unit.
Check all electrical switches are on.
Is the correct fuse fi tted?
Is the circuit breaker set?
Re-position control module.
(See unit installation).
Pump will not start.
Integral motor thermotrip activated.
Pump jammed.
Supply failure.
Wait for thermotrip to cool and auto-reset.
Investigate cause of problem.
Remove debris from pump.
Restore voltage to pump.
The pump does not stop.
System leaks.
Flow detector jammed.
Control module has been remotely
re-positioned incorrectly.
Restart button is jammed.
Check system for leaks by closing isolating valve on pump
outlet while pump is running. If pump stops it confi rms there
is a condition in the system calling for the pump to run. Re-
open outlet isolating valve and investigate cause for demand
and rectify.
Free the debris from detector.
Re-position control module (see unit installation section).
Press button repeatedly to free.
Turn power off and on to reset control unit.
Pump surges.
Insuffi cient water supply to pump.
Air is trapped in system.
Blockage/restriction in pipework.
Check water level in supply tank and all stopcocks are open.
Purge the system of air.
Remove restriction.
Pump hunting
(starting and stopping).
Failing non-return valve in control
module.
Investigate and correct problem or replace the unit.
Check system for leaks.
Stuart Turner Ltd, Henley-on-Thames, Oxfordshire RG9 2AD ENGLAND
Tel: +44 (0) 1491 572655, Fax: +44 (0) 1491 573704
[email protected] www.stuart-turner.co.uk
Issue No. 0215/2-01
Pt. No. 19332
