FORM NO. 56043124 - Condor XL
™
- 61
ELECTRICAL SYSTEM
TROUBLESHOOTING GUIDE
AXP PCB ASSEMBLY
• The signal controlling the chemical pump is extremely complex and fi eld troubleshooting should take a functional approach. Substitute with
a known good chemical pump to check operation. If the known good pump does not operate, and the wiring and control inputs to the AXP
system are correct, the main controller Driver Box is probably defective. Check the resistance of the chemical pump before replacing the main
controller Driver Box so as not to damage it if the pump is defective.
• The Solution Pump (-) line provides a switched ground return for the pump. When the solution pump is “ON” a 7.8KHz signal with a varying duty
cycle and average voltage will appear between this pin and B+. Measuring with a DC voltmeter will give a signal in the range of 0 to 12 volts.
Changing the fl ow rate solution bars on the LCD should produce a relative increase or decrease of the meter reading.
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