Haier Washer Error Codes — ERR3, ERR4, ERR5, ERR6, ERR8 Explained

Common Symptoms

• Error code displayed on the control panel (ERR3, ERR4, ERR5, ERR6, ERR8)
• Washer stops mid-cycle and will not resume
• Washer door locked and will not open
• Washer does not fill with water or fills very slowly
• Washer does not drain at the end of the cycle
• Drum vibrates violently or washer walks across the floor during spin
• Washer agitates but drum speed never increases to full spin

Most Likely Causes

1. 1

   ERR3 — Door Lock Fault

   ERR3 means the control board cannot confirm the door is securely latched. The door lock solenoid or door switch is not sending the expected signal. Causes: door latch striker bent or broken, door lock solenoid failed (test continuity — healthy solenoid reads 100–300Ω; OL = replace), loose wiring harness connector at the door lock assembly, or a foreign object caught in the door gasket preventing full closure. Common on HLT24AS and full-size front-load models.

2. 2

   ERR4 — Water Supply Fault

   ERR4 triggers when the washer does not reach the required water level within the allotted fill time (typically 4–8 minutes). Root causes: water supply valves behind the washer not fully open, kinked or pinched inlet hoses, clogged inlet valve mesh screen filters (blocked by sediment), household water pressure below 15 PSI, or a failed water inlet valve solenoid. Common on HLP21N portable models where the inlet hose faucet adapter seal leaks or the valve is partially open.

3. 3

   ERR5 — Drain Fault

   ERR5 fires when the washer cannot drain within the expected window (typically 3–5 minutes after the drain cycle starts). Common causes: clogged pump filter (coin trap — should be cleaned every 1–3 months), kinked drain hose, standpipe too low (below 18 inches causes siphoning), blocked drain pump impeller from a coin or small garment, or a burned-out drain pump motor. On the HLP21N, ERR5 is frequently caused by the drain hose extension not being fully inserted into the standpipe.

4. 4

   ERR6 — Motor Fault

   ERR6 signals that the control board cannot detect the expected motor speed feedback (tachometer signal). Causes: loose motor wiring harness connector, failed motor speed sensor (tachometer), worn carbon brushes on brushed-motor models (replace when worn below 5mm), motor control board failure, or motor winding failure. Running the washer repeatedly after ERR6 without diagnosis can damage drum shaft bearings.

5. 5

   ERR8 — Unbalance Fault

   ERR8 fires during spin when the drum sensor detects excessive vibration — the washer attempts 2–3 redistribution pauses and then halts. Causes: single heavy item (wet towel, jeans), overloaded drum, shipping transport bolts not removed before first use (4 rear bolts — critical on new Haier installations), worn drum suspension springs, or damaged shock absorbers. ERR8 on new machines almost always means the shipping bolts are still installed.

Quick DIY Checks

1. 1SAFETY FIRST — Unplug the washer from the wall outlet before accessing any internal component. For ERR3 door lock faults where the door is stuck closed, wait 3 minutes after unplugging — the lock solenoid will mechanically release once the control board loses power. Never force the door open.
2. 2ERR3 DOOR LOCK — Inspect the door gasket for small items (socks, underwear) caught in the fold. Open and firmly close the door — listen for the audible click of the latch engaging. Visually inspect the latch striker on the door for bending or damage. To test the door lock solenoid: unplug the washer, disconnect the door lock wiring harness, and probe the solenoid terminals with a multimeter in Ω resistance mode. A healthy Haier door lock solenoid reads 100–300Ω. An open circuit (OL) means the solenoid has failed — replace the door lock assembly (HLT24AS lock: verify part via model sticker inside door frame).
3. 3ERR4 WATER SUPPLY — Confirm both hot and cold supply valves are fully open (turn counterclockwise until they stop). Check both inlet hoses for kinks — straighten and route without sharp bends. Unscrew the inlet hoses from the back of the washer and inspect the small mesh screen filters inside the inlet ports. Clean any clogged screens under running water with a toothbrush. On the HLP21N portable model, reseat the faucet adapter and confirm the rubber seal is intact. If ERR4 persists, test household water pressure with a pressure gauge — must exceed 15 PSI.

1. 4ERR5 DRAIN — Locate the pump filter access door at the lower-front of the washer (front-load models: bottom panel, twist counterclockwise). Place towels and a shallow pan beneath — water will pour out when the filter is opened. Remove and clean the filter of lint, coins, and debris. Inspect the drain hose at the back: verify it is not kinked, and confirm the standpipe insertion is no more than 6 inches deep with the hose top 18–96 inches high. On the HLP21N, ensure the drain hose is fully seated in the sink or standpipe. Reinstall the filter and run a drain/spin cycle to confirm ERR5 clears.
2. 5ERR6 MOTOR — Unplug the washer and remove the rear access panel (4–6 Phillips screws). Locate the motor wiring harness connector at the base of the tub assembly and firmly reseat it — wiggle to confirm it is fully seated. Inspect connector pins for corrosion or bent pins. On front-load brushed-motor models, inspect the carbon brushes: if worn below 5mm, replace in pairs (brushes are sold as a matched set). Reconnect all wiring, reassemble, and retest. If ERR6 returns immediately with no load, the motor tachometer or control board has failed and requires a qualified technician.
3. 6ERR8 UNBALANCE — Open the door and manually redistribute laundry — pull apart tangled or bunched items. Remove single heavy items and wash them with a similar-weight item to balance the load. Do not exceed drum capacity (HLT24AS: 1.5 cu ft; full-size models: 4.0–5.0 cu ft). On new installations, check for shipping transport bolts at the rear of the machine — Haier ships washers with 4 large bolts securing the drum to the frame. These MUST be removed before first use. Leaving them installed causes violent ERR8 on every spin cycle and will eventually crack the tub. If ERR8 occurs on small balanced loads with shipping bolts removed, push against the front panel to test suspension — it should compress and rebound smoothly. Stiff or hard suspension indicates failed shock absorbers.
4. 7RESET PROCEDURE (all codes) — After correcting the root cause, press and hold the START/PAUSE button for 5 seconds to attempt a fault clear on most Haier models. If the error persists, perform a hard reset: unplug the washer for 60 seconds, plug back in, select any wash cycle, and press START. If the error code reappears immediately without the washer attempting to run water or rotate the drum, the underlying fault has not been fully resolved.
5. 8WHEN TO CALL A TECHNICIAN — ERR6 motor faults that persist after wiring inspection, ERR3 faults where the door lock assembly tests correctly (suspecting control board), or any fault combined with unusual burning smells or sparking should be escalated. Haier's parent company, Haier Group, owns GE Appliances and Hotpoint — certified GE Appliances service technicians are qualified to work on Haier-branded washers, and GE service parts often cross-reference to Haier models.

Repair vs Replace

Recommended Tools & Parts

• Haier Door Lock Assembly

  Replacement door latch and lock assembly for Haier front-load washers — resolves ERR3 door lock faults. Verify by full model number on the door frame sticker. Fits HLT24AS and similar front-load models.

  $40–$80

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• Water Inlet Valve (Dual Solenoid)

  Dual-solenoid water inlet valve for Haier washers — resolves persistent ERR4 water supply faults after inlet screens are cleaned. Includes integrated mesh screen filters. Verify by model number.

  $30–$65

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• Drain Pump Motor

  Replacement drain pump assembly for Haier front-load washers — resolves ERR5 drain faults that persist after pump filter cleaning and hose inspection. Verify by model number.

  $40–$75

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• Shock Absorber Set (2-pack)

  Replacement drum shock absorbers for Haier front-load washers — resolves ERR8 unbalance on normally loaded machines with shipping bolts already removed. Replace in pairs.

  $25–$55

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• Carbon Brush Set

  Motor carbon brushes for Haier washers with brushed universal motors — resolves ERR6 motor faults caused by worn brushes. Replace when brushes are shorter than 5mm. Sold as matched pair.

  $15–$30

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• Digital Multimeter

  Required for testing door lock solenoid resistance (ERR3), water inlet valve solenoid (ERR4), drain pump motor (ERR5), and motor continuity (ERR6). Ω resistance and continuity modes needed.

  $15–$35

  Buy on Amazon →

Links are Amazon affiliate links (tag: fixitfastai-20). Prices are estimates.

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