ErrorCodeDoctor
LG Dishwasher P1–P4 error code
P1, P2, P3, and P4 are not error codes. They indicate that a special downloaded cycle has been loaded onto the dishwasher. Each code corresponds to a different cycle designed for a specific type of load. P1 is for heavily soiled pots and pans, P2 is for greasy casserole dishes, P3 is for delicate glassware, and P4 is a quiet overnight cycle. These cycles are downloaded via the LG ThinQ app and appear on the display when selected.
Common causes
- A downloaded cycle was intentionally selected via the LG ThinQ app
- P1: Pots and pans cycle selected for heavily soiled cookware
- P2: Casserole cycle selected for greasy and heavily soiled dishes
- P3: Glassware cycle selected for delicate items
- P4: Night care cycle selected for quiet overnight washing
How to fix it
-
1
No action is needed — this is a normal cycle indicator not an error
-
2
If you want to cancel the downloaded cycle press the CANCEL button and select a standard cycle instead
-
3
If you did not intentionally select a downloaded cycle press CANCEL and restart with your preferred cycle
Related LG Dishwasher error codes
bE
The wrong type of detergent was used or the dishwasher is not level
CL
Child lock or control lock is active — buttons are disabled
AE / E1
Water has leaked into the base of the dishwasher and activated the float switch
IE
The dishwasher did not fill with enough water within 10 minutes
P1–P4 error — frequently asked questions
What does the P1–P4 error mean on a LG dishwasher?
A downloaded cycle is active — the letter and number indicate which cycle was downloaded
What causes the P1–P4 error?
The P1–P4 error is usually caused by: A downloaded cycle was intentionally selected via the LG ThinQ app; P1: Pots and pans cycle selected for heavily soiled cookware; P2: Casserole cycle selected for greasy and heavily soiled dishes; P3: Glassware cycle selected for delicate items; P4: Night care cycle selected for quiet overnight washing.
Can I fix the P1–P4 error myself?
Yes — this is rated an easy fix that most people can do themselves, typically in No action needed.
How much does it cost to fix the P1–P4 error?
Fixing the P1–P4 error on a LG dishwasher typically costs $0, depending on parts and whether you do it yourself or hire a technician.
Is it safe to keep using my dishwasher with the P1–P4 error?
In most cases yes, but it's best to address the P1–P4 error soon — see the fix steps below to resolve it.