How to Sell a Broken Keyboard Piano

A broken keyboard piano is still worth selling — typically £12 to £75 at For Parts, against £50 to £300 in working order.

Can you sell a keyboard piano that does not work?

Yes. Repairers, people replacing one component and buyers who want a project all shop deliberately at this end. None of them will accept a fault they discover after paying.

What actually goes wrong with keyboard pianos

These are the faults that move a keyboard piano down the grades, and the first things a buyer will ask about:

Dead or sticking keys, the most common fault
Failing contacts causing uneven velocity response
Missing power supply, which is often proprietary
Unweighted budget keyboards, which sell for very little

Grading it honestly

Fair covers something heavily used, or with a described fault or missing part: around £22 to £135. For Parts covers something not working or incomplete, sold as seen: roughly £12 to £75. Grades are seller-declared and nobody inspects them for you, so grading up does not raise what you get — it produces a buyer who arrives expecting something else. All five grades explained.

Working out what you actually have

Establish the fault properly rather than guessing at it:

Play every key individually and listen for dead or uneven notes
Test the sustain pedal and any expression inputs
Confirm you have the correct power supply

Photographing the fault

Photograph the damage directly and in focus — it is the evidence that the rest of the description is honest:

The keyboard from above, whole, keys visible
The control panel and display
The rear panel showing the ports and power socket
The power supply, pedal, stand and anything else included

What to state in the listing

Alongside the fault itself, buyers of broken keyboard pianos want these confirmed:

Number of keys and the action type: weighted, semi-weighted or synth
Brand, model, and whether it has built-in speakers
Whether the power supply, sustain pedal and stand are included
Any dead or sticking keys, and the condition of the controls

Key count and action: “Yamaha P-45 88 Key Weighted Digital Piano”. Those are the two filters buyers apply first. Say whether the power supply is included, because proprietary adapters are expensive and their absence is a real deduction.

What buyers will ask

Answer these in the listing rather than waiting to be asked:

“Are the keys weighted?”

Press one and feel for resistance, or check the specification. Weighted actions suit piano students and unweighted ones suit synth players — entirely different buyers.

“Are there any dead keys?”

Play every single one. A dead note is the most common fault and the easiest to check, so buyers assume you have.

“Is the power supply included?”

Confirm it and note the voltage. Proprietary adapters can cost a significant fraction of a budget keyboard’s value.

Is it worth repairing first?

Usually not, unless it is cheap and you can evidence it. What lifts the price is condition and completeness, which a repair rarely restores:

Weighted or semi-weighted key actions
Every key sounding evenly with no dead notes
Original stand, pedal and power supply
Recognised makers with a following among players

If the work would cost more than the gap between £75 and what a sound one fetches, sell it as is broken and let the buyer decide.

When to list it

Steady with a strong Christmas lift and a September bump as lessons start. Weighted 88 key instruments sell fastest.

Getting it to the buyer

Long and awkward rather than heavy. Postage needs a long box and is expensive; collection is usual and lets the buyer play every key, which is exactly what they want to do.

WishThrift does not process payments, arrange delivery or hold funds. Confirm the money has cleared before the item leaves your hands, and keep the conversation on the site so there is a record of what was agreed.

Ready to list it? Free to list, no commission, and neither side pays a buyer-protection fee — create a free account, or read the full keyboard piano selling guide if yours turns out to be sound.

Frequently asked questions

Is a broken keyboard piano worth anything?

Yes — typically £12 to £75 at For Parts against £50 to £300 working. Repairers and people harvesting one component buy deliberately at this end. Dead or sticking keys, the most common fault

Should I repair it before selling?

Usually not, unless the repair is cheap and you can evidence it. The things that genuinely lift the price are weighted or semi-weighted key actions and a repair rarely restores those.

What do buyers ask about a faulty keyboard piano?

The fault itself, in detail. Press one and feel for resistance, or check the specification. Weighted actions suit piano students and unweighted ones suit synth players — entirely different buyers. The listing that answers it before being asked is the one that sells.