If your HydroHoist sits lower after being raised, start by identifying the actual model and control system. The symptom is useful information, but it does not establish which part needs repair. A model-specific assessment is more useful than applying a generic hydraulic troubleshooting checklist.

Understand the lift you have

HydroHoist describes its UltraLift systems as hydropneumatic: air and water displacement in flotation tanks raise and lower the boat. That is a different mechanism from lifting with hydraulic cylinders. Confirm the model before using any maintenance or troubleshooting instructions. See the manufacturer's UltraLift overview and manual library.

What may cause leak-down?

The manufacturer's manual for 4400/6600 UL2 front-mount models identifies a leak in a valve, tank or hose as a possible cause of a hoist leaking down. This is model-specific guidance, not a diagnosis of your lift. The control arrangement, condition and installation need to be reviewed before recommending parts or repair. Read the model-specific manual.

What to send before a Lake Austin service visit

Your property location and the lift's make and model.
Photos of the lift, control unit, visible hoses and dock access, taken from a safe position.
When you first noticed the problem and whether the change affects one side or the whole lift.
Whether the boat, equipment or installation has changed recently.
Any existing manual, previous service record or relevant installation information.

Do not open controls, dismantle fittings or adjust the installation based on this article. Follow the operating and safety instructions for your model. For assembly, installation or repair, contact an authorized HydroHoist technician.

Agree on assessment and repair scope

Ask what the visit will assess, how the findings will be documented, and which work requires a separate repair proposal. Equipment condition, parts availability and site access determine the next steps. This page does not promise same-day service, stocked parts or a repair completed in one visit.

What does a diagnostic visit cost?

Tell us the lift model, location and symptoms. We will explain the diagnostic scope and current visit charge before scheduling. If a repair is needed, ask for a quote and confirm how any diagnostic charge is treated in that proposal.