Simrad AP26 and AP27 Autopilots
6 TROUBLE SHOOTING
An autopilot is a complex system. Its performance dependents on a proper installation and a successful sea trial.
In the event of an autopilot failure, the autopilot’s numerous test features will assist you in isolating a probable fault.
Audible and visual alarm is provided for every fault being detected.
The audible alarm is reset by pressing any button (e.g. by changing mode from AUTO to STANDBY). All visual alarms will remain and alternate with the operating display until the fault has been rectified. Refer to the table below for hints and try to solve the problem yourself. You may also consult your nearest Simrad dealer for assistance, if required.
Perform any repair action in the listed sequence.
Notes!
1.‘Compass difference’, ‘Vessel off course’, and ‘Rudder limit’ warnings are automatically reset when the error is rectified.
2.– – – in a display indicates that data is missing.
6.1Alarms
Display readout | Probable fault | Recommended action | |
System failure Alarms: |
|
| |
The boat is off | Boats heading is | 1. | Check steering parameters |
course | outside fixed off |
| (Rudder, Autotrim, Seastate- |
| course limit of 20 |
| filter). |
| deg. (Automatic reset | 2. | Increase Rudder value |
| when inside limit.) | ||
| 3. | Increase boat speed, if possible, | |
| Extreme weather | ||
| conditions, too slow |
| or steer by hand. |
| speed. |
|
|
NAV. data failure | Missing or invalid | 1. Check the Nav. Receiver/GPS | |
| NAV data. |
| setup. |
|
| 2. See Service menu Chapter 4.9. | |
118 | 20221586B |
