Vaillant PCB V132_K2 0020080512 · Ref. 0020092421 for VMW ES 296/3-5 R3

Application for the exact variant pending confirmation. Control board of the Vaillant boiler, with terminals for 21 V, BUS, RT 24 V, and 230 V. It is suspected when the boiler does not give a signal.

Type of part: Vaillant
Status: Refurbished
Catalogue reference: 0020092421
Warranty: 1 year

VAT included Stock · 3 units

Compatibility

boilers Vaillant compatible with reference 0020092421

Vaillant with reference 0020092421. 0 verified compatibilities. There are 4 other models that we are still checking.

Models pending verification

These models are associated with this reference, but we have not finished verifying them yet, so we do not consider them compatibleIf your boiler is one of them, send us a photo of the part you are going to replace and we will verify it before you purchase.

Vaillant VC 126, VC 196 and VC 246	Vaillant	Unconfirmed
Vaillant VC 306/3-5, VCI 196/3-5, VCI 246/3-5, VCW 196/3-5 (A) and VCW 246/3-5	Vaillant	Unconfirmed
Vaillant VC / VCW (unspecified model)	Vaillant	Unconfirmed
Vaillant VMW ES 296/3-5 R3	Vaillant	Unconfirmed

Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.

Guide

How to check if reference 0020092421 is the part for your boiler?

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

Look for the main label on your PCB: it should have 0020092421 and the visible code 5172 0143 G.
Look at the circuit: silkscreen TM-K2 V132_K2 0020080512 and X15 TC-K2. On the terminal sub-board, PM-02 and 0020045379.
Do not rely solely on 0020080512: the same silkscreen appears on another PCB with label 0020092504; also list 0020092377, unconfirmed. Compare the main label.
registered: for the VMW ES 296/3-5 R3.
the labels match, call us at 911 17 77 77 with your boiler model.

Diagnosis and fault codes

Symptoms that require diagnosis in the Vaillant 0020092421

Common symptoms and faults

01
The boiler is not signaling and the fine fuse on the PCB was blown.
Cause: In a forum, when changing that fuse, another component was damaged: they point to the switched power supply (ICE3A2565) and the driver BD6290.
02
The boiler does not ignite: after three attempts without a flame, the fault code F.28 appears and it goes into fault mode.
Cause: Gas shortage or ignition failure, faulty electrodes or damaged PCB.
If it repeats, have a technician check it. Do not attempt to reset multiple times in a row.
03
The boiler shuts down during operation and the restart fails (fault code F.29).
Cause: Temporary gas cut, gas recirculation, condensates, or faulty grounding.
Have a technician check it.
04
The gas valve does not activate: the boiler stops with fault code F.61.
Cause: Fault in the wiring or in the coils of the gas valve, or faulty PCB.
Have a technician check it.
05
Three ignition attempts without flame and the boiler locks out with F28.
Cause: Lack of flame when igniting: gas closed or with low pressure, ignition electrode or burner defective.
Check that gas is reaching and reset once. If it blocks again, have a technician check it.
06
The boiler shows F27 with the burner off.
Cause: Moisture in the electronics, faulty PCB or gas valve that does not close completely.
Have a technician check it; do not try to resolve it yourself.
07
F65 appears and the boiler's electronics are hot.
Cause: Insufficient ventilation around the boiler or excessive heat from the surroundings.
Ensure the ventilation of the area. If it reappears, have a technician check it.
08
F61 or F62 appears related to the gas valve.
Cause: Wiring of the valve, the valve itself or the control board.
Turn off the boiler and do not tamper with it. Have a technician check it.
09
The boiler does not ignite: after several attempts, F.28 appears and it gets locked.
Cause: It does not detect flame during ignition: gas, ignition, ionization, or electronics.
Check that the gas valve is open. If it still does not ignite, have a technician check it.
10
The boiler shuts down during operation and does not restart; fault code F.29 appears.
Cause: The flame goes out and the retries fail: gas supply interrupted, incorrect grounding, or flue gas recirculation.
Reset a maximum of three times. If it repeats, have a technician check it.
11
The boiler stops due to lack of water and fault code F.22 appears.
Cause: Water pressure too low: lack of water, faulty pressure sensor or pump.
Fill the installation according to the manual and bleed the radiators. If the pressure drops again, have a technician check it.
12
When starting the heating, F.75 appears and the boiler does not start working.
Cause: Faulty pressure sensor or pump, air in the system or low water.
Bleed the radiators and check the pressure. If it continues, have a technician check it.
13
A fault code F.61 to F.67 appears and the boiler locks out.
Cause: Gas valve, defective EEPROM or electronic board.
Do not reset multiple times. Have a technician check it.

Vaillant fault codes that require diagnosis

Code	Fault	Technical checks
F.28	Start-up fault: after three attempts without flame, the boiler goes into fault.	If it repeats, have a technician check it: it could be the gas, the electrodes, or the PCB.
F.29	Flame loss during operation and failed reignition.	If it repeats, have a technician check it: it could be the gas supply, the flue gas recirculation, the grounding, or the ignition.
F.61	The gas valve does not activate properly: fault in the wiring, coils, or PCB.	Have a technician check it. Point to the PCB if the wiring of the gas valve is correct.
F.62	The gas valve takes time to close after the flame goes out.	Have a technician check it: it could be the gas valve, the electrode, or the PCB.
F.63	Fault in the memory of the PCB (EEPROM).	It usually points to the PCB: have a technician check it.
F.67	The flame signal is not valid: fault in the electronics or ionization.	If it goes out when turning on, have a technician check the PCB and the ionization.
F27	Flame signal with the burner off. The boiler locks for safety.	It is usually due to moisture in the electronics or a gas valve that is not closing properly. If it reappears, have a technician check it; it points to the PCB or the valve.
F64	Short circuit or fault in the NTC sensor, or internal fault of the PCB.	If it appears, the PCB or the NTC sensor may fail; have it checked by a technician.
F65	The boiler's electronics are too hot.	It is usually due to insufficient ventilation around the boiler. Ensure proper ventilation; if it reoccurs, have a technician check it.
F.22	Water pressure too low. The boiler shuts down to protect itself.	Check the circuit pressure on the manometer and refill according to the manual. If the pressure drops again, there is a leak or a fault with the pressure sensor or the pump: have a technician check it.
F.75	When starting the pump, the pressure in the circuit does not rise.	Check the pressure and bleed the radiators. If the fault code persists, it points to the pressure sensor or the pump: have a technician check it.

These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.

Technical data

Vaillant 0020092421

Catalogue reference: 0020092421
Uniclima internal SKU: PLC190
Brand: Vaillant
Type of part: Vaillant
Units in stock: 3 units
Status: Refurbished
Warranty: 1 year
Shipping: Delivery time shown at checkout
Return: 14 days

Part data and available documentation

Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.

Screen printing of the terminal block: 21V; BUS; RT24V; 230V~; RT230V~
Inventory — Main part label: 0020092421; visible code 5172 0143 G
Inventory — PCB/edge sub-board: TM-K2; V132_K2_0020080512; X15 TC-K2
Inventory — Subplate/terminals: Vaillant Group PW-02; visible ref. 0020045379; Anl.-Therm. PM-02; BUS; RT 24 V=; 5 V; 230 V~; RT 230 V~; terminals 7-8-9, L-N-ground, 3-4-5
Inventory — Application indicated in inventory: VMW ES 296/3-5 R3
Inventory — Marked code: 0020092421; 5172 0143 G; 0020080512; TC-K2; PM-02
Switched source controller: ICE3A2565 (Infineon) ·
PCB fuse: 4 A/T
Three-way valve motor driver: BD6290
Identification — Marked designation: TM-K2 V132_K2
Identification — Marked code: 0020092421; 5172 0143 G
Identification — Marked code: 0020080512; TC-K2; PM-02
Identification — Marked code: 0020045379
Serigrafia de regleta: 21V; BUS; RT24V; 230V~; RT230V~
Inventory data — Main part label: 0020092421; visible code 5172 0143 G
Inventory data — PCB/border sub-board: TM-K2; V132_K2_0020080512; X15 TC-K2
Inventory data — Subplate/terminals: Vaillant Group PW-02; ref. visible 0020045379; Anl.-Therm.
Inventory data — Subplate/terminals: PM-02; BUS; RT 24 V=; 5 V; 230 V~; RT 230 V~; terminals 7-8-9, L-N-ground, 3-4-5
Inventory data — Application indicated in inventory: VMW ES 296/3-5 R3
Inventory data — Marked code: 0020092421; 5172 0143 G; 0020080512; TC-K2; PM-02
Pending applications to verify: VMW ES 296/3-5 R3 — compatibility noted; pending confirmation by variant.

Before purchasing

To confirm: Vaillant VC 126, VC 196, and VC 246: and (with E-C; unclear association)
To confirm: Vaillant VC 306/3-5, VCI 196/3-5, VCI 246/3-5, VCW 196/3-5 (A) and VCW 246/3-5 — 1 origin; they are provided with 0020035420.
To confirm: Vaillant VC / VCW (model not specified):
Not compatible or excluded at source: Vaillant ecoTEC plus VUW 246/3-5 and 316/3-5 (also R1) and 376/3-5 R1, control box until 08/07 — They have a different PCB, 0020052093 (official catalog ecoTEC plus 10/2008)
Not compatible or excluded: Vaillant VCW 126, VCW 196 E-C and VCW 246 E-C — They have a different PCB, 130808.
Do not confuse: 0020092478 — PCB of the VUW 296/3-5 R3; it is also provided for the VMW 296-3-5 R3 (contrary data, unconfirmed); a user cites it as a spare part, unconfirmed — Another code: without additional verified confirmation links it to 0020092421.
Do not confuse: 0020035420 — PCB that lists for various VC, VCW, and VCI 3-5 (not for the VC 126) — Another code: removed from similar models with 0020092421
Do not confuse: 0020036861 — Main PCB of the ecoTEC plus 415, 418, 428, and 438 British — Another code: without additional confirmation it links to 0020092421
Do not confuse: 0020092504 — Label of another PCB with the same silkscreen (Vaillant 438) — Another label
Do not confuse: 0020092377 — Code in the title, unconfirmed — Another code
They give 0020092421 as a Vaillant PCB; the readings do not mention the VMW ES 296/3-5 R3 (registered). They differ: VC series, other labels, and 0020092478 (VUW 296/3-5 R3; VMW 296-3-5 R3: contrary data, unconfirmed).
Pending registered applications to confirm by model, variant, or programming: Vaillant VMW ES 296/3-5 R3.

Frequently Asked Questions

Frequently asked questions: vaillant 0020092421

Where is the code for this PCB and what other markings should I compare?

The main label has 0020092421 and 5172 0143 G. On the edge of the circuit, it is engraved TM-K2 V132_K2 0020080512 and X15 TC-K2; on the terminal subplate, PM-02 and 0020045379.

Is it compatible with my Vaillant VMW ES 296/3-5 R3?

The compatibility of this variant is pending confirmation. Registered: for the VMW ES 296/3-5 R3. What we have been able to read does not mention that boiler with the 0020092421. It lists the 0020092478 as the control box PCB for the VUW 296/3-5 R3, another boiler from the same series. Compare the label: it should have 0020092421.

Is it compatible with another Vaillant boiler?

The compatibility of this variant is pending confirmation. We only confirm the VMW ES 296/3-5 R3. The PCB for VC 126, 196, 246, and 306/3-5, VCI 196 and 246/3-5, VCW 196/3-5 A and VCW 196 and 246/3-5 has already been withdrawn, and for "VC VCW": to be confirmed. The list 0020035420 is for VC 196/3-5, 246/3-5, and 306/3-5, VCW 196/3-5, 246/3-5, and 196/3-5 A, VCI 196/3-5 and 246/3-5 (not for VC 126), and the VUW 246/3-5 and 316/3-5 (until 08/07) use 0020052093. For another boiler, call 911 17 77 77 or contact us with photos.

What is the difference between 0020092421, 0020080512, 0020092504, and 0020092377?

0020092421 is on the main label and 0020080512 is the circuit type: they are mentioned together. 0020092504 is the label of another PCB with the same silkscreen (Vaillant 438); 0020092377 appears in the title, unconfirmed. Unconfirmed: 0020092504 and 0020092377 with 0020092421: compare the label.

Is the 0020092478 PCB the same as the 0020035420 or the 0020036861?

We do not know: without additional verified confirmation, it links to 0020092421. A user cites 0020092478 as a Vaillant spare part, unconfirmed. It lists 0020035420 for various VC, VCW, and VCI 3-5. The British source provides 0020036861 for the ecoTEC plus 415, 418, 428, and 438; according to a user, the technical department of Vaillant indicated that same reference as a spare part for the PCB of a 438 with this silkscreen.

What usually fails in the PCB 0020092421?

A user describes a Vaillant 0020092421 with no signal: the thin fuse was blown and when it was replaced, another component was damaged. According to the forum, its switched-mode power supply uses an ICE3A2565 (Infineon) and the BD6290 driver for the three-way valve is also commonly damaged.

Can I install it myself?

No. The PCB operates at 230 V (screen printing 230V~) and, according to a forum user, includes the ignition automatic, a safety component. It must be installed by a qualified technician.

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Vaillant PCB V132_K2 0020080512 · Ref. 0020092421 for VMW ES 296/3-5 R3