No Speed or Temperature with DST800

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Steve,

It is recommended that the DST800 be disconnected from the iTC-5. Its thermistor may be tested using information found here. Its speed through water sensor should be inspected for signs of fouling and should be cleaned if none are found its paddlewheel rotates freely. Its speed through water sensor may be tested using the information found here. Should either of these sensors fail to meet the test criteria, then the transducer's insert will need to be replaced. Transducer inserts for the DST800 may be purchased from Gemeco (Airmar's US distributor). Should the sensors meet the test criteria, then the iTC-5 should be sent to Raymarine’s Product Repair Center to be bench tested/serviced.

Onboard warranty is not included unless the products are installed by a Certified Raymarine Installer. Those installed by others will may be serviced under warranty by Raymarine's Product Repair Center. Transducers carry a 1-year warranty.