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14
Trouble Shooting
Problem
Possible Cause and Solution
Low flow rate
1. Filter flow rate has slowed due to sediment build up on the top
layer of sand. Perform maintenance on the filter (Section 7).
2. Filter has become air-locked due to dissolved gases in the
water coming out of solution. Follow the degassing procedure
(Section 9).
3. Draining the filter below the top of the sand. Follow the
degassing procedure (Section 9).
4. Outlet valve has been closed. Ensure that it is open.
5. Surface of sand has become compacted due to excessive
flow rate. Follow the degassing procedure (Section 9).
6. Inlet water temperature has dropped since the flow rate
control valve was last set. Reset the control valve (Section 5).
Note that the valve will have to be reset again when the water
temperature increases.
Water not entering
the filter
1. Filter inlet valve not fully open. Check the valve to the filter.
2. Mechanical float valve out of adjustment. Re-adjust as
required.
3. Solenoid valve closed. See solenoid valve not functioning
below.
Storage tank
overfilling
1. Mechanical float valve out of adjustment. Re-adjust as
required.
Pump not operating 1. Storage tank low level float switch out of adjustment. Re-
adjust as required.
2. Pump doesn’t have electricity. Check electrical connection
and breakers.
3. Valves not open. Check valves on the storage tank and pump
/ pressure tank.
4. Consult the pump manufacturer’s instructions.
Solenoid valve not
functioning
1. Check float switch adjustment. Re-adjust as required.
2. Check electrical outlet. (Solenoid is normally closed)
3. Consult the solenoid manufacturer’s instructions.
