LG LDF8874ST/00 dishwasher Parts

On an LG dishwasher like model LDF8874ST, the model and serial number are printed on the unit’s rating label. The label is typically located on the inside edge of the door (along the top or side of the door frame) and is easiest to read with the door fully open; see the LDF8874ST owner's manual.

Quick ways to find it fast

• Open the door fully and look along the inner door frame (top edge first, then left and right sides).
• Check the tub opening frame where the door seals against the tub.
• Wipe the label gently with a damp cloth if it is cloudy from detergent residue.
• Use a flashlight and take a photo; zoom in to read small print.
• Write down both the model number and serial number before ordering parts.

What the label usually looks like

Most LG rating labels include these fields:

Label field	What it’s used for	Example for this unit
Model	Identifies the exact dishwasher version	LDF8874ST
Serial	Identifies production run and date info	(varies)
Electrical ratings	Confirms power requirements	(varies)

Why it matters

We use the model number to match the correct LG dishwasher parts (for example, a control panel assembly, drain pump, or a dishwasher diverter motor 4681ED3001D) because similar-looking dishwashers can use different components.

Last updated: February 2026

The purchase price of an LG LDF8874ST dishwasher depends on whether you’re buying it new, used, or as a replacement unit; we focus on helping you keep your existing LDF8874ST running with the right parts and specs from the LDF8874ST owner's manual.

What you can use to estimate total cost

Dishwashers are usually most cost-effective to keep when the issue is a wear item (rollers, seals, springs) rather than a major motor or control failure.

• Compare the cost of the needed repair part(s) to the value of the dishwasher
• Factor in labor if you are not doing a DIY repair
• Consider age and condition (rack rust, leaks, repeated drain issues)
• Use model specs to confirm fit before replacing the unit
• Price out common repairs first (rollers, gaskets, drain pump)

Common repair parts that affect “cost to keep”

If you’re asking about cost because the dishwasher needs work, these are some of the higher-impact parts for the LG LDF8874ST.

Repair need	Typical symptom	Example part for LDF8874ST
Not draining	Water left in tub	Dishwasher drain pump ABQ73503004
Leaking at door/tub	Water at front or sides	Dishwasher tub gasket 3920DD3005H
Poor wash coverage	Some racks not getting clean	Dishwasher diverter motor 4681ED3001D
Door won’t stay up	Door drops open	Dishwasher door spring 4970ED4004G

Model specs that matter when replacing the dishwasher

If you’re pricing a replacement, match the opening and utility requirements. For the LG LDF8874ST, the manual lists:

• Power supply: 120 V, 60 Hz AC, minimum 15 A circuit
• Water pressure: 20 to 120 psi
• Minimum inlet water temperature: 120°F (49°C)
• Size (W x D x H): 23 3/4 in. x 24 5/8 in. x 33 1/2 in.
• Product weight: 100.5 lb

Why it matters

Knowing the LDF8874ST’s exact dimensions and electrical requirements helps you avoid buying a replacement that will not fit the cabinet opening or match the existing hookup, which can add unexpected installation costs.

Last updated: February 2026

On LG model LDF8874ST, we clear most error displays by canceling the cycle and restoring power. Press and hold START to reset/cancel, then restart a fresh cycle; if the display shows PF, simply restart the cycle after power is stable (PF indicates a power failure, not a malfunction). See the LDF8874ST owner’s manual for the exact button sequence and code meanings.

Quick reset steps (safe first)

• Press and hold START to cancel the current cycle.
• Wait about 10 seconds, then select a new cycle and press START.
• If the dishwasher is unresponsive, turn OFF at the breaker (or unplug) for 10 to 15 minutes, then restore power.
• If PF appears, press any button; it typically displays briefly, then you can restart the cycle.
• If Child Lock is on, press SPRAY and RINSE together for 3 seconds to toggle it off.

What the code is telling you (and what to do next)

An error code usually comes back because the dishwasher still detects the underlying problem. Use the code to aim your troubleshooting.

What you see	What it usually means	What to check first
PF	Power interruption	Restart cycle; check breaker and outlet stability
Drain-related code	Water not pumping out	Filter area, drain hose routing, air gap/disposal plug, pump
Leak-related code	Water detected in base	Door seal area, tub gasket, oversudsing, loose clamps
Fill-related code	Not filling correctly	Water supply valve open, inlet screen, float/level sensing

Parts that commonly relate to recurring codes

If troubleshooting points to a failed component, these model-matched parts are common suspects:

• Dishwasher drain pump ABQ73503004 for repeated drain errors or standing water
• Dishwasher pressure switch EBF61334501 for fill/level sensing problems
• Dishwasher diverter motor 4681ED3001D if wash performance issues accompany a code

Why it matters

Clearing the display gets you running again, but the code is the dishwasher’s way of preventing poor cleaning, leaks, or pump damage. Fixing the root cause reduces repeat shutdowns and protects the control board.

Last updated: February 2026

For the LG LDF8874ST dishwasher, the most common problems we see are poor cleaning (often from clogged filters or spray arms), draining problems, and cycles stopping or not finishing (sometimes tied to power interruptions or wash-system issues). Start with basic cleaning and a quick check for error codes in the LDF8874ST owner's manual.

Most common symptoms and what usually causes them

• Dishes come out dirty: blocked spray arm holes, dirty filter area, low water temperature, overloading.
• Water left in the tub: clogged filter/sump area, kinked drain hose, drain pump issue.
• Stops mid-cycle or won’t resume: power disruption (PF indicator), door not fully latched, control sensing a fault.
• Leaks: door seal contamination, tub gasket wear, loading issues causing spray to hit the door.
• Odd noises: food debris in the pump area, spray arm striking dishes, diverter issues.

Quick checks we recommend first (fast, no parts)

1. Turn power on and select a cycle within 4 minutes (the control can power off if no cycle is chosen).
2. If you see PF, restart the cycle (PF indicates a power surge, outage, or disruption and the cycle must be restarted).
3. Clean the filter area and check the sump for debris.
4. Spin spray arms by hand to confirm they move freely and holes are not plugged.
5. Confirm hot water at the sink before starting a cycle (helps cleaning and dissolves detergent).

When a part is commonly involved

Symptom	Common part area	Example part for LDF8874ST
Not draining	Drain system	Dishwasher drain pump ABQ73503004
Poor wash on one rack	Spray system / diverter	Dishwasher diverter motor 4681ED3001D
Leaking at door/tub	Seals and gaskets	Dishwasher tub gasket 3920DD3005H

Why it matters

Poor cleaning and draining issues usually start as maintenance problems (filters, spray arms, loading) and can turn into pump or motor strain over time. Catching the symptom early helps protect the circulation system and keeps cycle times consistent.

If an error code is showing, use our LG dishwasher error codes guide to narrow the cause before replacing parts.

Last updated: February 2026

LG dishwashers typically last 10 to 15 years with normal household use. For the LG LDF8874ST, consistent care (especially filter and spray arm cleaning, correct detergent use, and avoiding overloads) is what most often determines whether you land closer to 10 years or closer to 15.

What affects lifespan the most

• Filter maintenance: Keeping filters clean helps protect the pump and motor from debris.
• Spray arm condition: Clogged spray holes reduce cleaning and can strain circulation.
• Water quality and temperature: Hotter, consistent incoming water supports better washing and drying.
• Rinse aid use: Helps drying performance in LG’s hybrid drying approach.
• Loading habits: Overloading and blocking spray paths increases wear and poor results.

Maintenance checklist (best return for the effort)

Use the schedule in the LDF8874ST owner’s manual as your baseline.

• Clean the filters on a regular schedule (more often if you see food debris).
• Inspect and clean the lower, upper, and top spray arms if performance drops.
• Run hot water at the sink before starting a cycle if the dishwasher is far from the water heater.
• Use rinse aid and adjust the setting if drying needs improvement.
• Let the dry cycle finish before opening the door so heat stays in for drying.

Common wear items vs. major repairs

Item type	Examples	What it usually looks like
Wear and tear	Rack rollers, door springs, gaskets	Noisy racks, door dropping, small leaks
Performance related	Spray arms, diverter components	Poor cleaning, weak spray, uneven washing
Major components	Pump and motor, control board	Won’t wash, won’t drain, dead or erratic operation

If you’re chasing uneven wash performance, a failing diverter can be a factor on some dishwashers; the dishwasher diverter motor 4681ED3001D is one of the model-matched parts we list for LDF8874ST.

Why it matters

A dishwasher that is cleaned and loaded correctly runs with less restriction and less strain on the circulation and drain system. That directly improves cleaning results and helps the machine reach the typical 10 to 15 year lifespan.

Last updated: February 2026