SQFlex Service Instructions

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4. Trouble-shooting
Visual/general inspection of main components
Before starting specific Trouble-shooting, go through these simple visual inspections first.
Visual inspection of solar modules
• Check that the solar modules are intact.
• Make sure that trees, grass, bushes, buildings,
etc. do not cast a shadow on the solar
modules.
Visual inspection of the wind turbine,
see Check mechanical condition on page 24
Visual inspection of cables
• Check that the cables are intact.
Visual inspection of the water level
The water level must be at least 3 ft. above the
pump.
The dry running sensor must be under water.
Visual inspection of pipes and hoses
• Check that hoses or pipes are intact.
Test by means of a service CU 200
If available, a CU 200 can be used for test-
ing systems without a CU 200. Connect
the CU 200 and proceed according to the
instructions in section
1.3.1 CU 200 SQFlex
control unit on page 8.
POWER PUMP
GND IN
PE PE PE
F1 = OVERVOLTAGE
F2 = OVERTEMP
F3 = NO CONTACT
F4 = OVERLOAD
CONTROL INDICATOR
MAX SPEED
+24 V
+10 V
+5 V
LEVEL SWITCH
sqflex_SI_US_WG.book Page 25 Thursday, October 1, 2009 3:27 PM