LG Dryer Error Code E5

E5 on an LG dryer signals a water supply pump error in the steam system. The dryer was unable to confirm that the steam generator reached a full water level within 60 seconds, or the pump's AD valve value read below 10 during test mode. This fault stops the steam cycle to protect the generator from running dry.

When E5 is active, the steam function will not operate correctly, and the dryer should not be used for steam cycles until the fault is resolved. Running the steam system without proper water flow risks damaging the steam generator. Standard non-steam drying cycles may still function, but confirming the fault is resolved before resuming normal use is the safer approach.

If the fix is simply reseating a loose connector, there is no parts cost involved. If the water supply pump needs replacement, parts typically range from around 30 to 80 dollars depending on the specific model, with professional labor adding another 80 to 150 dollars in most markets. Diagnosing the wiring harness and connectors first can help avoid unnecessary parts replacement.

Many cases of E5 can be resolved without professional help. Start by checking that the water supply line is connected, fully open, and free of kinks. Then inspect the wiring harness and connector at the water supply pump for loose or corroded terminals and reseat any loose connections. If those checks do not resolve the error, the pump itself likely needs to be replaced, which requires some disassembly of the dryer cabinet.

A reset may temporarily clear the E5 display, but if the underlying issue with the water pump or wiring is not repaired, the error will return as soon as a steam cycle is attempted again. Resetting is useful for confirming whether the fault is intermittent, but it is not a substitute for diagnosing and correcting the root cause.