Sunrise Medical 931157 Section, Troubleshooting No Power, Circuit Breaker Reset, Test Joystick

Section 1

Troubleshooting: No Power

1.0 Circuit Breaker Reset

If On/off button is pressed and no light or bar is shown, check for tripped circuit breaker (see figure A1.0.1) and make sure all connections are clean and tight (including the batteries). If the problem persists, then perform the following diagnostics.

A1.0.1

1.1 Test Joystick

Check that the voltage is going to the controller, set the meter to dc volts and take a voltage reading from pin 1 (using the red lead) and pin 2 (using the black lead) to the charger port of the VSI controller (see figure A1.1.1) If the voltage meter reads approximately 24 volts, replace the con- troller, if the meter reads less than 12 volts, proceed to the next step.

Note: Make sure the polarity is correct. If the reading is inter- mittent, there is a connection or Controller problem.If polari- ty is reversed proceed to step 1.6

A1.1.1

21

3

If the total Battery Voltage reads approx. 24 V, and the Polarity is correct, replace the controller.

1.2 Battery Test

Check that the batteries are fully charged and in good con- dition. Remove the seat, and the battery cover, with con- troller connected and turned on, use the meter to check the voltage across the battery terminals (see figure A1.2.1). If the voltage meter reads between 12 -13.5 volts, then pro- ceed to next step. If the voltage meter reads below 12volts,charge the batteries.

Note: To find a bad battery, use a battery load tester.
	A1.2.1

If the voltage meter reads below 12 volts, charge the batteries.

SUNRISE MEDICAL ASPIRE SERVICE MANUAL 2003 PAGE 1