Anthony Liftgates don't break often, but even the most rugged parts don't last forever. Damage or normal wear and tear can interfere with normal liftgate operation. We've prepared this section to help guide you step-by-step through the most common troubleshooting procedures for liftgate repair. Simply locate and click the description that most closely matches your issue, then follow the troubleshooting steps outlined on that page.

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Platform will not lower.  

Possible Cause #1 Bad ground or other bad connection.
Action -            

Check all connections and all connectors             for worn, loose, or corroded connections. Replace any defective terminals with             'heat shrink' factory terminal.




(Diagnosis time - 1/2 hr. / Repair time - 15 minutes).

Part Numbers - N/A
Possible Cause #2 Bad lowering valve coil.
Action - Remove coil from lowering cartridge and             test magnetism of inside of coil with metal object ( i.e. screwdriver ) while             energizing 'down' control side of switch only.            



(Diagnosis time - 15 minutes / Repair time - 1/2 hr.).

Part Numbers -             ATU-121 (Monarch Lowering Valve)            
            ATU-479 (Fenner Lowering Valve)            
Possible Cause #3 Latch assembly not unlatched.
Action -            

With platform on ground, remove lowering             valve and inspect. Clean if dirty. Replace if plunger not freely             moveable.




(Diagnosis time - 1/2 hr. / Repair time - 1/2 hr.).

Part Numbers -             ATU-121 (Monarch lowering valve)            
            ATU-479 (Fenner lowering valve)            
Possible Cause #4 Latch assembly not unlatched.
Action -             Unlatch assembly.            
Part Numbers - ATU-195 (Latch Assembly)
Warranty Information:
Base Warranty:            

3 Years on mechanical structure.


2 Years on hydraulic & electrical components.


Warranties are void if genuine Anthony parts are not used.