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Author Topic:   SmartCraft Sea Water Temperature Indicator Fault
jstarzy posted 08-09-2015 02:00 PM ET (US)   Profile for jstarzy   Send Email to jstarzy  
Hi All....

I have a 205 Conquest with SmartCraft Gauges. The sea water temperature reading is at about 163 degrees F. when in 88 degree sea water.

As part of troubleshooting, I've turn the function on and off in the tachometer and observed the reading go to "off" on the tachometer and speedometer. When re-established to on, the faulty 163 degree reading was still present.

It is a single motor installation with a Smartcraft Tachometer and Speedometer and (I presume) sensor in the paddle wheel. The speed indicator from the paddle wheel is working fine. The sea temp adjustment calibration is at 0 and can adjust 10 degrees up or down. There is no SmartCraft depth transducer.

Any ideas if this is a calibration issue or faulty sensor? Can the sensor be replaced/repaired without replacing the whole paddle wheel assembly?

Any help would be much appreciated.



acseatsri posted 08-09-2015 05:48 PM ET (US)     Profile for acseatsri  Send Email to acseatsri     
Are you sure you're not looking at engine temperature? I wouldn't think your smart craft gages would show sea temperature. More likely this would come from a fish finder or a separate sea temp gage.
Jefecinco posted 08-09-2015 07:15 PM ET (US)     Profile for Jefecinco  Send Email to Jefecinco     
The SmartCraft seawater temperature sensor is integrated with the paddle wheel speed sensor.
jstarzy posted 08-11-2015 08:22 AM ET (US)     Profile for jstarzy  Send Email to jstarzy     
Thank you for the replies.

This is indeed a sea-water temperature function, not engine coolant temperature or oil temperature. The SmartCraft system has a sensor for sea water temperature in the paddle wheel on my boat.

Does this seem like a set-up problem within the SmartCraft system? (I have SC-1000 Tachometer and Speedometer)

Or, a malfunctioning sensor in the paddle wheel? If so, can the sensor be cleaned or replaced without replacing the entire paddle wheel assembly? Could it perhaps be a connection problem in a wiring harness?

Thanks for any help.


Jefecinco posted 08-11-2015 08:58 AM ET (US)     Profile for Jefecinco  Send Email to Jefecinco     

I have SmartCraft with my 135 Verado but have not yet had a malfunction. The sensor can be cleaned and if it has growth on it that could be a problem. From the forums it seems that the vast majority of SmartCraft problems are due to operator error or wiring connection problems due to loose connections with in the harness connectors.

Due to my limited abilities I would check all the connectors in the system by disconnecting them, checking for any obvious problems with the connectors then carefully reconnecting them. I would probably use a little CRC contact cleaner on the connectors before reconnecting them.

I recommend you visit the Verado Club site for more information. A search there will provide some better troubleshooting suggestions.


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