Symptom | Possible Reasons | Suggested Solutions |
Unit is not reading prop- | There are three basic | Refer to the pages in |
erly at high speeds, | types of installations: | this manual along with |
causing high random | the drawings for your | |
numbers at high RPM. | particular boat on the | |
| Transom Mount. Gen- | proper installation tech- |
| erally, this situation is | nique. |
| attributed to the location | If this is a Transom |
| and installation of the | |
| transducer. A great | Mount Transducer, it |
| deal of air is flowing | may require that the |
| over the face of the | transducer be adjusted |
| transducer and is inhib- | lower in the bracket so |
| iting the unit from re- | that it extends further |
| ceiving the correct | under the bottom of the |
| bottom reading. | boat and is allowed a |
| Cavitation (locked on | clean flow of water. |
|
| |
| bubbles) either on the | It could also require that |
| face of the transducer or | the transducer and/or |
| on the underbelly of the | bracket be relocated to |
| boat is preventing the | achieve a clean, smooth |
| unit from displaying the | flow of water over the |
| true depth. | face of the transducer. |
Transom Mount Trans- | This occurs if the trans- | Transducer may be per- |
ducer is breaking where | ducer is installed under | manently damaged and |
the mounting bracket at- | a gasoline overflow vent | is non repairable. Be- |
taches to the trans- | OR if an adhesive such | fore installing a replace- |
ducer. | as LOCKTITE® was | ment |
| used to bond the hard- | sure to move the |
| ware onto the trans- | bracket. |
| ducer mounting bracket. | The adhesive or gaso- |
|
| |
|
| line has eaten into the |
|
| plastic and cannot be |
|
| repaired. |
A30 or A00 reads out | A lug from a transducer | Unfortunately, perma- |
permanently on the dis- | wire was accidentally | nent damage has been |
play. | connected to either the | done to the main sur- |
| Alarm Up/Down terminal | face mount “chip”. The |
| and power was applied. | instrument head only |
|
| must be returned for re- |
|
| pair. |
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