Originally Posted by Cartouche
I can here tab motor running when I move the levers but the tabs do not retaract and extend, thus my thought is it has lost fluid
Not necessarily. I'm a Bennett guy, but TrimMaster operated in a very similar fashion. The pump has 3 electrical components, the motor and 1 solenoid each for port and starboard actuators. In order to deploy or retract a tab the motor has to turn and the appropriate solenoid(s) need to open, simultaneously. If there is an electrical problem with a solenoid you could hear the motor run but the tabs would not move because the solenoids do not open. From corrosion in wiring, control or connections, the motor will just run slower, but the solenoids are much more voltage sensitive.
There is usually a connector between the wire harness and the pump near the pump that is often the culprit. Connections at the control are sometimes the problem. You may have a leak, in which case you would have fluid in the bilge or a sheen on the water.
Find the pump by ear, if it has fluid you may just need to clean some elect connections. A solenoid or the control may need to be replaced. But if you can hear the motor running, the pump itself is usually good.
The basic Bennett troubleshooting guide is still a good tool across hydraulic trim tab brands for both Boat Leveler and TrimMaster