- Appliances
- Washing machines
Unb
Hisense washing machine Unb: drum unbalance alarm during spin
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
The Unb code on a Hisense washing machine or washer-dryer is the unbalance alarm triggered during spinning. Switch off the machine, open the door, untangle and redistribute the clothes (or add one or two towels if the load is too light), then run the separate Spin programme.
Safety first
Stop and check this first
- Never force the door open while the drum is still moving: always switch off the washing machine and wait until the drum comes to a complete stop and the door lock disengages.
- The manual advises using low-foaming detergent formulated for automatic washing machines, as excessive foam can hinder draining and spin balancing.
Safe checks you can perform
- Untangle the laundry and reload it evenly into the drum
- Add more laundry or one or two towels when the load weight is insufficient
- Check that all four feet are level and transport bolts and foam are removed
Leave these tasks to a qualified professional
- Do not attempt this professional task: Verification of cabinet levelling, foot lock nuts and transport fixings
- Do not attempt this professional task: Inspection of drum suspension and balance detection during spin
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Verification of cabinet levelling, foot lock nuts and transport fixings
What they doThe technician checks the appliance with a spirit level, adjusts the four feet and their lock nuts against the cabinet, and confirms that all transport bolts and bottom foam packaging have been removed.
They must show youthe spirit level reading on top of the cabinet and the locked adjustable feet on the floor.
In writingthe verification of machine levelling, adjustment of foot lock nuts and confirmation that transport fixings are removed.
Inspection of drum suspension and balance detection during spin
What they doWhen the Unb alarm persists on an empty drum or with a balanced load on a level floor, the authorised after-sales technician inspects the drum suspension assembly, rotation and speed control.
They must show youa completed high-speed spin test free of the Unb alarm and the condition of the inspected suspension components.
In writingthe diagnostic check of the drum suspension and spin balance system, corrective work carried out and spin test verification.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Untangle the laundry and reload it evenly into the drum
- Who:
- you.
- How:
- when the laundry is tangled together, switch off the Hisense washing machine, wait for the door lock to release, open the door, shake and loosen the clothes, put them back into the drum evenly, close the door and select the separate Spin programme.
- Result that matters:
- the garments distribute around the drum and the separate Spin cycle completes without Unb.
- If the spin cycle finishes normally:
- the unbalance alarm was caused by tangled laundry in that cycle.
- If the load contains only one or two small items and Unb appears again:
- perform the underweighted load check.
- Evidence to keep:
- drum stability and completion of the standalone Spin programme.
Evidence: Hisense HWF5I9014 User's Operation Manual (washing machine)
Add more laundry or one or two towels when the load weight is insufficient
- Who:
- you.
- How:
- when the laundry weight is too light, switch off the machine, open the door and add more laundry or one or two towels so the drum can balance the load; close the door and select the separate Spin programme.
- Result that matters:
- the added towels balance the drum and allow full spin speed.
- If the drum reaches full spin without stopping:
- wash single heavy items together with a few smaller items in future cycles.
- If the machine still vibrates heavily or stops with a balanced load:
- check the levelling feet.
- Evidence to keep:
- successful spin completion after adding one or two towels to the drum.
Evidence: Hisense HWF5I9014 User's Operation Manual (washing machine)
Check that all four feet are level and transport bolts and foam are removed
- Who:
- you.
- How:
- with the machine stopped, check that it stands on a flat, solid floor with all four adjustable feet firmly seated and lock nuts tightened, and verify that all rear transport screws/rods and bottom packing foam have been removed.
- Result that matters:
- the cabinet does not rock when pushed diagonally across the top corners.
- If all four corners sit firmly on the floor:
- the physical installation and levelling of the washing machine are sound.
- If the cabinet rocks or packing pieces remain:
- adjust the feet until level and stable, or remove any remaining transport bolts and foam.
- Evidence to keep:
- cabinet stability test across diagonal corners on the floor.
Evidence: Hisense HWF5I9014 User's Operation Manual (washing machine)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Hisense
- Product type
- Washing machines
Known code variants
- Alarma Unb
- Hisense Unb
- UNB
- Unbalance alarm Unb
What it means
On Hisense washing machines and washer-dryers (such as the HWF5I9014 and WD5i1045BWQ series), display code Unb indicates an unbalance alarm. The appliance features an automatic balance detection and correction system that monitors drum stability before high-speed spinning: if the laundry remains lopsided after repeated redistribution attempts (due to tangled garments or an underweighted load), the machine lowers the spin speed or halts spinning to protect the drum and suspension. Seeing Unb does not prove that the motor or shock absorbers are faulty: it is a protective safety response that is normally cleared by rearranging the load.
Warnings and stop conditions
- Highsource verified
Never force the door open while the drum is still moving: always switch off the washing machine and wait until the drum comes to a complete stop and the door lock disengages.
Evidence: Hisense HWF5I9014 User's Operation Manual (washing machine)
- Lowsource verified
The manual advises using low-foaming detergent formulated for automatic washing machines, as excessive foam can hinder draining and spin balancing.
Evidence: Hisense HWF5I9014 User's Operation Manual (washing machine)
Symptoms and causes
Probable causes · in order
- Laundry tangled or rolled into a heavy bundle on one side of the drumCommon
Large items such as duvet covers, sheets or bathrobes can wrap around other garments, creating a concentrated weight that the automatic balance system cannot redistribute.
Evidence: Hisense HWF5I9014 User's Operation Manual (washing machine)
- Laundry weight is insufficient to balance the drum during spinCommon
Washing a single heavy garment or a very small load leaves no counterweight on the opposite side of the drum, triggering the Unb unbalance alarm.
Evidence: Hisense HWF5I9014 User's Operation Manual (washing machine)
- Appliance not level on the floor or transport bolts and bottom foam still fittedPossible
When all four feet are not resting firmly on a flat floor, or the rear transport bolts/rods or bottom foam were not removed at installation, vibration increases and prevents stable spinning.
Evidence: Hisense HWF5I9014 User's Operation Manual (washing machine)
- Excessive foam from high-foaming detergent or overdosingLess common
Too much suds inside the drum slows down water extraction and interferes with load balancing at the start of the spin phase.
Evidence: Hisense HWF5I9014 User's Operation Manual (washing machine)
Virtual technician
Does Unb still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Hisense WD5i1045BWQ: manual de usuario (lavadora secadora)
Hisense España · 2025 · manual
- 2
Hisense HWF5I9014 User's Operation Manual (washing machine)
Hisense New Zealand · 2026 · manual
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