How To Test The Seastar Power Assist; Test Procedure - Dometic HC4645H Troubleshooting Manual

EN
10 How to test the SeaStar
Power Assist

10.1 Test procedure

WARNING!
The power assist must remain connected to the boat's electrical and
hydraulic systems at all times during this procedure.
CAUTION!
Care must be taken to ensure no kinking, twisting or any other damage
occurs to the hoses while testing.
1. Access the power assist's rear cover and remove the screws that hold it
in place. Remove the rear cover.
2. At point (A). With the key or remote switch in the 'on' position, check to
ensure there is between 12.5 & 14.5 VDC battery voltage.
3. If there is low or no voltage at this point you must trace the wires and
resolve any issue.
4. At point (B). Check to ensure there is between 12.5 & 14.5 VDC
battery voltage.
5. If there is low or no voltage at this point, check that the battery
connections and fuse are clean and in good working order. Repair and/
or replace as required. Record the voltage.
6. At point (C). With an assistant turning the steering wheel, check the
voltage. The voltage should be variable. Before the wheel is turned,
voltage should be near zero. The voltage should rise as the wheel
is turned.
7. Turn the wheel quickly and note the maximum voltage. This reading
should be comparable with that recorded at point (B).
8. If there is low or no voltage at this point contact Dometic technical
support at 604-248-3858.
Figure 10-1. Voltage test points A, B, and C.
B
C
A
TEST FOR VOLTAGE
AT THESE POINTS
29