Vaillant TL-AE PM-03 PCB · 0020028476 · VMW ES 242/3-5 M

Application to the exact variant pending confirmation. Main PCB related to ignition, flame modulation, and boiler safety. Lack of ignition, restarts, or erratic errors require diagnosis before attributing the fault to this part.

Type of part: Vaillant
Status: Refurbished
Catalogue reference: 0020028476
Warranty: 1 year

VAT included Stock · 5 units

Compatibility

Vaillant boilers compatible with reference 0020028476

Vaillant with reference 0020028476. 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 VMW 242/4-5 M R1	Vaillant	Unconfirmed
Vaillant turboTEC plus VU 202/5-5, VU 242/5-5 and VUW 202, 242, 282, 322/5-5	Vaillant	Unconfirmed
Vaillant atmoTEC and turboTEC pro/plus VUW (200, 240, 280; 202, 242, 282) series 3-3 and 3-5	Vaillant	Unconfirmed
Vaillant VMW ES 242/3-5 M	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 ref. 0020028476 is the part for your boiler

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

Check your PCB for the code 0020028476 and compare it with ours. Ours also marks 7484 0392 A / 0188.06.03, TL-AE / PM-03 and TM-AE1 / V132-E1.
Check the data plate that your boiler is a Vaillant VMW ES 242/3-5 M, the registered one. The turboTEC and atmoTEC mentioned are to be confirmed.
Compare the 0020028476 and the TL-AE PM-03 circuit with your PCB. They differ regarding the 0020092371 and the 0020035443 / 0020045430: do not consider them equivalent.
if they match, call us at 911 17 77 77 with the model of your boiler. Any questions? Send us a photo of the label on your PCB from Contact.

Diagnosis and fault codes

Symptoms that require diagnosis in the Vaillant 0020028476

Common symptoms and faults

01
The boiler does not ignite or does not respond to the thermostat.
Cause: To confirm: among the signs of changing the PCB 0020028476; have it diagnosed by a technician.
02
Erratic fault codes on screen and continuous resets
Cause: Signals associated with the PCB.
03
Stuck relays that prevent the burner from starting.
Cause: Fault attributed to the PCB.
04
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.
05
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.
06
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.
07
The boiler does not start or shuts down, with the warning F28 or F29.
Cause: Gas supply, ionization electrode or ground connection.
Have a technician check it. Do not touch the gas valve.
08
The boiler detects flame with the gas valve closed: warning F27.
Cause: Ionization electrode, faulty PCB or gas solenoid.
It is a security fault. Have a technician check it immediately.
09
The boiler locks out with the warning F61 or F62: fault in the gas valve or in the PCB.
Cause: Faulty wiring or gas valve, or a malfunctioning PCB.
Do not manipulate it. Have a technician check it.
10
The boiler displays the warning F63: memory fault of the PCB.
Cause: Faulty PCB.
Have a technician check it. It may be necessary to replace the PCB.
11
The boiler does not ignite and shows F.28.
Cause: After three failed ignition attempts, the device goes into fault.
It could be related to the gas or the electronics.
12
The boiler shuts down during operation and displays F.29.
Cause: The flame goes out and the reignition does not occur properly.
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 detected with the gas valve closed.	It is a safety fault. Have a technician check it immediately. Point to the ionization electrode or the PCB.
F26	Stepper motor current of the gas valve not plausible.	Have a technician check it. Focus on the gas valve, its wiring, or the PCB.
F49	Low voltage on the eBUS (thermostat or controller line).	Check the wiring of the thermostat. If the warning returns, have a technician check it. Point to the communication PCB.
F64	Fault in the electronic system or in the sensors.	Have a technician check it. It points to the PCB or a short circuit in a supply or return sensor.
F65	Electronic system temperature too high.	Have a technician check it. It points to external heat on the PCB or a faulty PCB.
F20	Safety temperature limiter activated: overheating.	Do not reset it over and over again. Have a technician check it. If the warning returns, it may be due to a lack of water circulation, not the PCB.

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 0020028476

Catalogue reference: 0020028476
Uniclima internal SKU: PLC199
Brand: Vaillant
Type of part: Vaillant
Units in stock: 5 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.

Terminal marking: 21V / 230V
Connection marking: 5V
Inventory — Subcomponent relay ZETTLER AZ8692-1C-240/20: 8 A, 250 VAC/30 VDC
Inventory — Subcomponent relay ZETTLER AZ6962-1CE-24D(200): marked on the part; nominal capacity not verified
Inventory — Visible fuse on PCB: F1, T2
Inventory — Application indicated in inventory: VMW ES 242/3-5 M
Inventory — Marked code: 7484 0392 A / 0188.06.03; TM-AE1 / V132-E1
To confirm: Supply voltage data: 230 V · 50 Hz
To confirm: Data from (1 source) — Operating temperature: -10 °C to +90 °C
Identification — Marked code: 0020028476
Identification — Marked code: 7484 0392 A / 0188.06.03
Identification — Marked code: TL-AE / PM-03
Identification — Marked code: TM-AE1 / V132-E1
Marked terminals: 21V / 230V
Marked connection: 5V
Inventory data — Subcomponent relay ZETTLER AZ8692-1C-240/20: 8 A, 250 VAC/30 VDC
Inventory data — Subcomponent relay ZETTLER AZ6962-1CE-24D(200): marked on the part; nominal capacity not verified
Inventory data — Visible fuse on PCB: F1, T2
Inventory data — Application indicated in inventory: VMW ES 242/3-5 M
Inventory data — Marked code: 7484 0392 A / 0188.06.03; TM-AE1 / V132-E1
Pending applications to verify: VMW ES 242/3-5 M — noted compatibility; pending confirmation by variant.

Before purchasing

Publish a fault table for the VMW ES 242/4-5M, not for this boiler: the technical sheet does not use any fault codes.
Vaillant VMW 242/4-5 M R1 — 1 origin:
To confirm: Vaillant turboTEC plus VU 202/5-5, VU 242/5-5 and VUW 202, 242, 282, 322/5-5 — 1 origin: (its list of compatible)
To confirm: Vaillant atmoTEC and turboTEC pro/plus VUW (200, 240, 280; 202, 242, 282) series 3-3 and 3-5: with (same catalog)
Do not confuse: 0020092371 — Board sold with 0020028476 printed; in a list for the VMW 242/3-5 M classic (another variant) it is "Printed circuit support" — contradictory: compare the TL-AE PM-03 and your boiler.
Do not confuse: 0020035443 / 0020045430 — PCB "TC-AG1"; they are placed in the title alongside 0020028476 — contradictory; our brand TL-AE PM-03 and 0020028476.
To confirm: they do not match regarding 0020092371: they link it to 0020028476, but a list in Vaillant format, hosted in the VMW 242/3-5 M classic (another variant), refers to it as "Printed circuit board support."
The 0020028476 is linked to a Vaillant PCB, but there is a discrepancy regarding the 0020092371. The VMW ES 242/3-5 M and the marked ones come registered.
Pending registered applications to confirm by model, variant, or programming: Vaillant VMW ES 242/3-5 M.

Frequently Asked Questions

Frequently asked questions: vaillant 0020028476

What codes should I compare with my PCB?

Our unit is marked with 0020028476, TL-AE / PM-03 (circuit code), 7484 0392 A / 0188.06.03, and TM-AE1 / V132-E1. Compare at least 0020028476 and TL-AE PM-03. Connect 0020028476 to a Vaillant PCB; none mention the other markings.

Is it compatible with my Vaillant VMW ES 242/3-5 M?

The compatibility of this variant is pending confirmation. Registered application: this PCB for the Vaillant VMW ES 242/3-5 M. If your model has a different ending, compare the specification label of the boiler.

In which other boilers is 0020028476 used?

The compatibility of this variant is pending confirmation. To be confirmed: it is provided for the VMW 242/4-5 M R1 and the turboTEC plus 5-5. Application registered for atmoTEC and turboTEC pro/plus from series 3-3 and 3-5, such as the turboTEC plus VUW 242/3-5. None registered (1). For yours, please send us a photo of the label via Contact.

Is 0020092371 the same as 0020028476?

they do not match. it sells a Vaillant PCB with 0020028476 printed on it along with 0020092371; it lists it as "Other Identifiers" and places it next to 0020028476. However, a formatted list from the VMW 242/3-5 M classic (another variant) refers to it as "Printed circuit support." Compare 0020028476 and TL-AE PM-03.

What is mounted on this PCB and what should be checked before replacing it?

Our unit has a fuse marked F1, T2 and two ZETTLER relays: AZ8692-1C-240/20 (8 A, 250 VAC/30 VDC) and AZ6962-1CE-24D(200). The terminals indicate 21V / 230V and the connection 5V (marked from the unit, not measurements). Before declaring it faulty, the technician should check the fuse F1, T2.

What symptoms point to this PCB and who should install it?

associate with 0020028476 a boiler that does not ignite, erratic errors, continuous resets, and stuck relays. It should be installed by a qualified technician.

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Vaillant TL-AE PM-03 PCB · 0020028476 · VMW ES 242/3-5 M