Kärcher ARMADA BRC 40/22 C, Manual

Page: 48 / 61

48
Machine powers up everything runs except the pump will not run
1. It is not possible to check for voltage to the vac motor if it is disconnected from the harness, the controller will only put
out 21 VAC. Remove the pump cover as described on page 13. With your volt meter set on AC voltage, and the pump
switch turned on with the main switch in a solution mode, pull the yellow hand lever and check for voltage at the
connector in the harness, is there only 21 VAC? (figure 1d)
Yes Check the pump motor for resistance if it is greater than 12mΩ replace the pump. If the reading is OL,
check the wiring, if it is good replace the pump.
No Check the wiring to the controller if it is good replace the main controller.
Figure 1d