Liebherr OW-17 and UW-14 Heater Service Manual

An auxiliary heater keeps the cab warm and the coolant ready to work on a crane or heavy vehicle, and when it quits in winter the machine sits. This manual is the workshop document for the OW-17 and UW-14 heaters. Technicians reach for it when they're fixing the heater in-house, tracing a fault, or pulling and replacing a component.

What this manual helps you do

• Trace faults through the diagnostics and troubleshooting and error correction sections
• Follow the repair instructions for removing and refitting heater parts
• Replace components on the water heater Thermo 90 ST using the installation and repair procedures
• Check the heating air conditioning unit against the service works steps
• Diagnose heating system problems before you order parts or start taking things apart

Who this is for

A crane service technician or rental fleet mechanic who has an OW-17 or UW-14 in the shop and needs workshop-level procedures. It also suits independent repair shops and plant maintenance staff working on a used machine that arrived without documentation.

FAQ

Q: What do I receive and how is it organised?

A: You get one PDF file of 72 pages, in German. The text can be searched and copied, so you can jump straight to a fault or a component name.

Q: Which machines does it fit?

A: It is written for the Liebherr OW-17 and UW-14 heaters. The title on the manual is "Heating and Auxiliary Heater Repair Diagnostics."

Q: How does it fit the job I'm doing?

A: You'd expect to find the heating system, the heating air conditioning unit, installation and repair, service works and diagnostics in one file. That puts the fault finding and the repair steps side by side at the bench.

Open it, search the fault or part you're working on, and get the heater back in service.

Click here to view the preview (PDF)

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