22
14. Troubleshooting
Fault
Probable cause
Recommended solution
Unpumped
Reduced/poor flow
Valves not fully open
Check all valves are fully open
Blocked filter
Ensure all filters are free from debris
Reduced/poor
pressure
Incoming mains pressure
dropped
Check pressure of incoming mains. If below 2 Bar/200 kPa consider a
pumped version. Contact PumpWise for more information
Pressure reducing valve not set
correctly
Check pressure of incoming mains and adjust pressure reducing valve
if necessary
Air precharge pressure not set
correctly
Check incoming mains pressure and adjust air precharge if necessary
System runs out of
water
Insufficient capacity in vessel
Contact PumpWise on 0191 516 2002
Pumped
Pump will not start
Electrical
Check power supply
Check fuse
Check circuit breaker and RCD
Inlet/outlet connections
incorrect
Check that connections are plumbed the correct way round and all
valves are open
Insufficient natural mains flow/
no water
Ensure all filters are free from debris
Check natural incoming mains flow rate (min of 2 L/min required)
Check all pipework valves and anti vibration hose isolators are fully
open
System pressure has not
dropped sufficiently to activate
pump
Fully open an outlet to allow pressure to drop within the system
Reduced/
intermittent flow
Insufficient natural mains flow/
no water
see above
Blocked filters
Ensure all filters are free from debris
Anti vibration couplers
restricting flow
Ensure that anti-vibration couplers are straight and not bent or
distorted
Ensure isolation valves on anti-vibration hoses are fully open
Air in pipework
Open each outlet in turn until all air has been removed
Pump starts/
continues to run
when all outlets are
closed
Vessel not reached full water
capacity
Allow sufficient time for vessel to reach full capacity (this can vary
between 5-40 mins depending on vessel size)
Leak in system
Check all outlets are closed
Check all pipework and outlets for leaks
Pump is noisy
Air in pump/pipework
Open each outlet in turn until all air has been removed
Pump vibrating
Check rubber feet are fitted to pump
Anti-vibration couplers/
pipework causing vibration
Ensure that the anti-vibration couplers are straight and not bent or
distorted
Check all pipework is clipped securely
Unit is leaking
Connections are not tight
Make sure all connections are tight and washers are fitted
Unit has suffered chemical
damage
Ensure that no part of the unit has not come into contact with
chemical substances such as solder flux
Unit appears to have leaked but
not sure
Check leak is not from pipework above or around the unit
Pump does not fill
vessel
Insufficient natural mains flow/
no water
See above