Candy induction hob power supply board schematic and repair sources

User question

Onde encontrar Esquema da placa eletrónica de alimentação da placa de indução Candy

Artificial Intelligence Response

Direct answer to the question

For a Candy induction hob power supply / power electronics board schematic, the most realistic places to look are:

1. Elektrotanya — often the best source for appliance service manuals. I found, for example, a Candy PEI644B3 service manual listed there, but service manuals may contain only partial diagrams or troubleshooting information, not always full PCB-level schematics. (elektrotanya.com)
2. Candy official technical assistance / authorized service — useful for manuals, spare parts and official repair routes, but they usually provide board replacement rather than component-level schematics. Candy Portugal states that official service can help with maintenance, failures and compatible spare parts. (candy-home.com)
3. Search by the PCB code, not only by the appliance model — open the hob and look for markings on the board: PCB reference, module number, OEM manufacturer code, sticker number, revision, etc.
4. Repair forums such as EEVblog, Foros de Electrónica, Tout-Electromenager, Electro-Tech-Online and similar communities. There are repair discussions for induction hob power boards and even Candy-related induction faults, but usually based on reverse engineering rather than official schematics. (forosdeelectronica.com)
5. Spare-parts suppliers — for example, Candy spare-parts sites list replacement PCB/control modules for hobs, which is often the manufacturer-supported repair method. (candy-spares.co.uk)

The important point: a complete component-level schematic of a Candy induction power board is usually not publicly available. Manufacturers normally treat those schematics as proprietary. In practice, technicians identify the board reference and either replace the module or repair common failure sections.

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Detailed problem analysis

1. Why the schematic is hard to find

Induction hobs contain high-power inverter electronics: rectifier, DC-link capacitor bank, IGBTs or MOSFETs, resonant capacitors, current sensing, auxiliary SMPS, gate drivers and microcontroller control circuits. Because of safety, certification and intellectual property reasons, appliance manufacturers usually do not publish full PCB-level schematics.

What is more commonly available:

Document type	Usually available?	Usefulness
User manual	Yes	Installation, error codes, basic troubleshooting
Service manual	Sometimes	Access procedure, wiring, diagnostics, replacement modules
Wiring diagram	Sometimes	Connector-level repair
Exploded-view spare parts list	Often	Identifies replacement board/module
Full power-board schematic	Rare	Component-level repair
Forum reverse-engineered schematic	Sometimes	Very useful, but unofficial

Some Candy induction manuals available online include troubleshooting such as “replace the power board” when the pan detection or heating circuit is faulty, which indicates the official service approach is usually module replacement, not board-level repair. (device.report)

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2. What information you need before searching

Do not search only for:

“Candy induction hob schematic”

That is too broad.

Instead, collect these identifiers:

• Full appliance model, for example:
  • CI640C
  • CIE3637B
  • PEI644B3
  • CDTP644SC/E1
  • CID30/1
• Product code / service code from the rating plate.
• Serial number.
• PCB code printed on the board.
• Sticker code on the power module.
• IC references:
  • SMPS IC: LNK304, TNYxxx, VIPer12/22, etc.
  • Gate driver ICs.
  • IGBTs.
  • Relays.
• Any burned component markings.

The PCB code is often more important than the Candy model number. Candy may use boards made by external OEM suppliers, so the same or similar power board may appear in other brands.

Search examples:

Candy CIE3637B power board schematic
Candy CI640C inverter board repair
Candy PEI644B3 service manual
Candy induction hob PCB code schematic
[PCB code] induction hob power board
[PCB code] IGBT repair
[SMPS IC reference] Candy induction hob

If the board has a code such as Midea, E.G.O., Copreci, Vestel, Youlong, or another manufacturer marking, search that code directly.

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Current information and trends

Current online availability suggests three practical realities:

• Official Candy support focuses on assistance, manuals and spare parts, not public release of full electronic schematics. Candy Portugal directs users to official technical service and compatible spare parts. (candy-home.com)
• Spare-part suppliers list complete PCB/control modules, which confirms that the industry repair path is commonly board replacement rather than component-level schematic repair. (candy-spares.co.uk)
• Repair forums remain the most useful source for component-level repair, especially when someone has repaired the same board and posted photos, measurements or partial reverse-engineered diagrams. Candy CIE3637B and generic induction hob power-board discussions are findable in electronics repair forums. (forosdeelectronica.com)

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Supporting explanations and details

A Candy induction hob power board normally contains these sections:

1. Mains input and protection

Typical components:

• Fuse or fusible resistor.
• MOV surge suppressor.
• EMI filter.
• NTC inrush limiter.
• Bridge rectifier.

If the house breaker trips immediately, check:

• Bridge rectifier short.
• IGBT short.
• DC-link capacitor short.
• Burned PCB tracks.

2. Auxiliary power supply

This creates the low voltages for the logic and control circuits, commonly:

• 5 V for microcontroller/display.
• 12 V for relays/fan.
• 15–18 V for gate-driver circuits.

Common faults:

• Open fusible resistor.
• Failed LNK/TNY/VIPer-type SMPS IC.
• Shorted secondary diode.
• Bad electrolytic capacitor.
• Faulty optocoupler or TL431 feedback circuit.

If the hob is completely dead, this is often the first section to inspect.

3. High-power inverter stage

This drives the induction coils.

Typical components:

• IGBTs on heatsink.
• Fast diodes.
• Resonant film capacitors.
• Current transformer or shunt.
• Gate resistors.
• Gate-driver ICs.

If one zone does not heat, suspect:

• IGBT pair for that zone.
• Gate-driver circuit.
• Resonant capacitor.
• Relay contact.
• Cracked solder joint.

4. Pan detection and control

Induction hobs detect cookware through current, phase shift and resonant behavior. If the display works but the hob shows “no pan” or flashes “U”, possible causes include:

• Incorrect cookware.
• Weak resonant capacitor.
• Bad relay contact.
• Fault in current sensing.
• Communication fault between display/control board and power board.
• Defective power board.

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Practical guidelines

Step-by-step approach to finding the schematic or repair data

1. Remove power completely.

   • Disconnect from mains.
   • Wait.
   • Discharge the DC-link capacitors safely.

2. Photograph the board.

   • Top side.
   • Bottom side.
   • Connector labels.
   • Burned area.
   • Sticker labels.
   • IC markings.

3. Write down every code.

   • Appliance model.
   • Product code.
   • Board code.
   • Revision.
   • Main IC numbers.
   • Relay numbers.
   • IGBT numbers.

4. Search in this order:

   • Candy [model] service manual
   • Candy [model] schematic
   • Candy [model] power board
   • [PCB code] schematic
   • [PCB code] repair
   • [IGBT part number] induction hob Candy
   • [SMPS IC] Candy induction

5. Check these sources:

   • Elektrotanya.
   • Candy official support.
   • Candy spare-parts sites.
   • EEVblog forum.
   • Foros de Electrónica.
   • Tout-Electromenager.
   • Adepem / Spareka discussion pages.
   • Local Portuguese appliance-repair forums or Facebook technician groups.

6. If no schematic exists, repair by functional blocks.

   • Input protection.
   • SMPS.
   • DC bus.
   • IGBT inverter.
   • Gate driver.
   • Relays.
   • Resonant capacitors.
   • Display/control communication.

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Safety note

A Candy induction hob power board is not a low-voltage board. After rectifying 230 V AC mains, the DC bus is typically around:

\[ V_{DC} \approx 230 \times \sqrt{2} \approx 325\,V \]

This voltage can remain stored in the large electrolytic capacitors after the hob is unplugged.

Before touching the board:

• Disconnect the appliance from mains.
• Verify with a multimeter.
• Discharge DC-link capacitors using a suitable resistor, not a screwdriver.
• Avoid live measurements unless you are qualified and have the correct isolation and differential measurement equipment.
• If the board has carbonized PCB material, cracked IGBTs or burned mains tracks, repair may be unsafe without proper inspection.

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Brief summary

You will probably not find an official full schematic for the Candy induction power board. The best route is:

1. Identify the exact hob model and PCB code.
2. Search Elektrotanya, repair forums and spare-part sites.
3. Contact Candy authorized service for official parts/manuals.
4. If repairing at component level, diagnose by circuit blocks: SMPS, rectifier, IGBTs, relays, capacitors and gate drivers.

If you send the model number of the Candy hob and clear photos of the power board labels, I can help you identify the board and suggest more targeted search terms or likely failure points.

Disclaimer: The responses provided by artificial intelligence (language model) may be inaccurate and misleading. Elektroda is not responsible for the accuracy, reliability, or completeness of the presented information. All responses should be verified by the user.