Baxi Roca Victoria Condens PCB · 7660426 · CU-GH04 (0580183_07)

PCB with application pending confirmation for Victoria Condens, designated as air unit card. It has connectors for GAS VALVE, 3WV, Pump, and Mains, as well as a CANBUS interface. The ignition, modulation, safety, and communication functions require verification for this variant. Lack of ignition or erratic errors require diagnosis.

Type of part: PCBs (control boards)
Status: Refurbished
internal SKU: PLCN002
Warranty: 1 year

VAT included Stock · 5 units

Compatibility

Compatible Baxi Roca boilers

PCB. A proven compatibility: Baxi Roca Victoria Condens. There are 4 other models that we are still verifying.

Proven compatibility

Boiler model	Family	Verification
Baxi Roca Victoria Condens	Baxi Roca	Contrasted

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.

Baxi Roca Neobit Condens 24/24F (Westen)	Baxi Roca	Unconfirmed
Baxi Roca Neobit Condens 28/28F (Westen)	Baxi Roca	Unconfirmed
Baxi Roca Baxi Prime (24, 26, 28, 30 and 26 Mago)	Baxi Roca	Unconfirmed
Baxi Roca Baxi Evolution Prime (26, 26 Mago and 30)	Baxi Roca	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 it is the part for your boiler

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

Look at the label for the model CU-GH04(0304) and the code 0580183_07; on the tag, 2229A1128 and the reference 7660426.
Compare with the 7660426 ("Victoria Condens air unit card"). If you are offered the 7749763 (SIT CU-GH04), check the 0580183_07: match both codes.
Do not confuse it with the Baxi Roca control panel 7648436 or the connection PCB 7219229: they are different spare parts.
Check that the printed connectors are GAS VALVE, 3WV, Pump, and Mains, and that it has CANBUS.
If they match, call us at 911 17 77 77 with your boiler model and we will reserve it for you.

Diagnosis and fault codes

Symptoms that require diagnosis on the PCB

The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:

Common symptoms and faults

01
The boiler does not ignite or does not respond to the demands for heating and domestic hot water.
Cause: attribute it to 7660426. First, check the fault code displayed by the boiler.
02
Erratic errors on screen or sudden restarts
Cause: It relates them to this PCB; check for stuck relays, burnt traces, or corrosion.
03
Unexpected shutdowns or stoppages due to electrical faults
Cause: it indicates for the 7660426.
04
The boiler locks out or stops unexpectedly.
Cause: An electrical fault in the PCB can cause lockouts and unexpected shutdowns.
Note the code displayed by the boiler before changing anything. Compare the codes on your PCB (7660426, CU-GH04(0304) and 0580183_07) with those of this part. A technician must diagnose the boiler before replacing the PCB.
05
The boiler does not ignite and locks up on startup, with lights 60-70-90.
Cause: There may be a lack of gas or spark.
Check that there is gas and that the valve is open. If it happens again, have a technician check it.
06
The boiler behaves erratically and the lights 40-90 or 50-90 appear.
Cause: Faulty sensor or cable with a loose connection; moisture and rust on the connector cause this symptom.
Check the connector and the cable. If they are fine, have a technician check to replace the sensor or the PCB.
07
The boiler does not stop when there is no heating demand, with lights 50-70-90.
Cause: Fault in the safety relay.
Have a technician check it.
08
The boiler locks with a PCB or sensor fault code and does not start until reset.
Cause: Fault of the PCB, a sensor or its connection.
Note the code and perform a single reset. If it repeats, have a technician check it.
09
The boiler does not ignite and locks out after several attempts.
Cause: Ignition fault: gas, electrodes, or the PCB.
Note the code and perform a single reset. If it repeats, have a technician check it.
10
The boiler does not ignite after several attempts and gets locked.
Cause: Lack of flame during ignition. This may be due to the ignition electrode, the gas valve, or the PCB.
Check the gas supply and reset once. If it repeats, have a technician check it.
11
The boiler turns off several times a day with the burner on.
Cause: Repeated flame loss. Check the ionization electrode or the gas valve.
Do not reset in a loop. If it repeats, have a technician check it.

Fault codes Baxi Roca that require diagnosis

Code	Fault	Technical checks
t17	Overheated PCB.	Wait for it to cool down. It's a boiler status warning, not a fault code.
40-90	Lights 40 and 90 on: domestic hot water sensor faulty or wiring with a fault.	Check the connector and the cable of the domestic hot water sensor. If they are fine, the sensor or the PCB are the parts to be checked; have a technician inspect it.
50-90	Lights 50 and 90 on: heating sensor faulty or wiring failure.	Check the connector and the cable of the heating sensor. If they are fine, the sensor or the PCB should be checked; have a technician take a look.
60-90	Lights 60 and 90 on: the flame relay is not working properly or is off.	If the boiler does not ignite or gets blocked when starting, the PCB (flame relay) is the part to check; have a technician inspect it.
40-60-90	Lights 40, 60, and 90 on: fault in the safety circuit; the boiler needs to be reset.	Reset according to the manual. If the warning repeats, have a technician check it: it points to the PCB.
50-70-90	Lights 50, 70, and 90 on: fault in the safety relay, which does not close after the demand.	If the boiler does not stop when there is no demand for heating, have a technician check it: it points to the PCB.
70-90	Lights 70 and 90 on: safety fuse open.	If the boiler is locked with this warning, have a technician check it: it points to the PCB.
60-70-90	Lights 60, 70, and 90 on: ignition lock.	Check that there is gas and that the valve is open. If it happens again, have a technician check it: it could be the PCB, the electrode, or the gas valve.
40-50-70-90	Lights 40, 50, 70, and 90 on: burner off, with very short ignition timing.	If the boiler turns off when starting, have a technician check it: it points to the PCB.
40-60-70-90	Lights 40, 60, 70, and 90 on: safety relay with very long start-up timing.	If the warning repeats when turning on, have a technician check it: it points to the PCB.
E.00.04	Return temperature sensor disconnected: the boiler does not read the sensor.	Check the connector and wiring of the return sensor. If the issue persists, it points to the sensor or the PCB: have a technician check it.
E.00.05	Return temperature sensor in short circuit.	Check the return sensor and its wiring. If the issue persists, have a technician inspect it: it points to the sensor or the PCB.
E.01.04	Loss of flame five times in 24 hours.	If it repeats, check the ionization electrode or the gas valve. Have a technician inspect it.
H.03.02	Temporary flame loss.	If it occurs frequently, point to the ionization electrode. If it repeats, 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

Data sheet for the Baxi Roca PCB.

Uniclima internal SKU: PLCN002
Brand: Baxi Roca
Type of part: PCBs (control boards)
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.

Part name: VICTORIA CONDENS AIR UNIT CARD
Commercial reference: 7660426
PCB model: CU-GH04(0304)
PCB code: 0580183_07
Another code from the PCB label: 2229A1128
Nominal supply: 230 VAC/50Hz
CE marking PIN: 0085CP0322
CE marking on the label: 0085-22
Flammability classification of the PCB: 94V-0
PCB marking: CP 8B
Certification reference printed on the PCB.: E243951
Additional code printed on the PCB: 06 382 1
Silkscreen interface: CANBUS
Gas valve connector: GAS VALVE
Three-way valve connector: 3WV
Pump connector: Bomba
Power supply connector: Mains
Source of additional data: Declared information; auxiliary references and applications without equivalent from the accredited manufacturer.
Inventory — Screen-printed connector: Pump 1
Pending applications to verify: Statements from (documentation 23/10/2026; revision 24/10/2026), pending confirmation by the manufacturer. Check reference, revision, and serial number before use: Victoria Condens 24 AF · Victoria Condens 24/24F · Victoria Condens 28/28F · Neobit Condens 24/24F

Before purchasing

To confirm: Neobit Condens 24/24F (Westen): (7660426), (7749763)
To confirm: Neobit Condens 28/28F (Westen): (7749763)
To confirm: Baxi Prime (24, 26, 28, 30 and 26 Mago) — with 7749763; it only connects to 0580183_07.
To confirm: Baxi Evolution Prime (26, 26 Mago and 30) — with 7749763
Do not confuse: 7648436 — Control board Baxi Roca (288.93.0074) for Victoria Condens 24/24F and 28/28F — Another part; the page does not indicate its function.
Do not confuse: 7219229 / BA7219229 — "Wiring diagram" from Baxi, for electrical connections — Another PCB, with a different code.
Just match 7660426 and 7749763: always compare 0580183_07.
To confirm: 7660426 = Victoria Condens air unit card. No official breakdown read. Equate 7660426 and 7749763. It gives 2249A1461 along with the 0580183_07 from its PCB; our unit has 2229A1128 (prevails).

Frequently Asked Questions

Frequently asked questions about the PCB (control board)

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

On the PCB, the model is CU-GH04(0304), the circuit code is 0580183_07, and the additional code is 06 382 1; on its label, 2229A1128. The part reference is 7660426: it is listed as Baxi's reference for the "Victoria Condens air unit card." It shows on its PCB 0580183_07 and 2249A1461; this does not match the 2229A1128 from our unit.

Is it compatible with my Baxi Roca Victoria Condens?

Yes. Confirmed: for the Victoria Condens. Additionally, they provide it with the 7660426 for the 24/24 F, the 28/28 F, and the 24 AF, as well as for the 24/24 F and the 24/AF. If your boiler is different, please send us a photo of the label on your PCB and the specifications plate from the Contact section.

Is the 7660426 the same PCB as the 7749763 (SIT CU-GH04)?

It is yet to be confirmed: it only shows "Codes: 7660426, 7749763" in the same sheet. They sell the SIT CU-GH04 with the 7749763 for Victoria Condens and Prime; it displays the 0580183_07 from our unit. The measurements do not match each other.

Is it compatible with the Neobit Condens or the Prime?

Without confirmation for them. Provide 7660426 for the Neobit Condens 24/24F; provide 7749763 for the Neobit Condens and the Prime, and for the Prime. It's another code: compare with 0580183_07 or send us a photo of the label from Contact.

Does it get confused with another PCB from the Victoria Condens?

Yes. It sells a Roca control board with code 7648436 (ref. 288.93.0074) for the Victoria Condens 24/24F and 28/28F; it is another part and its page does not state its function. It offers a Baxi wiring diagram, code 7219229 (BA7219229), for the electrical connections.

What symptoms point to this PCB?

The boiler does not ignite or respond to heating and domestic hot water demands, erratic errors on the display, sudden restarts or freezes. It mentions unexpected stops or shutdowns due to electrical faults. Before replacing it, check the fault code of the boiler.

Who should install it?

A qualified technician. Works at 230 VAC/50 Hz and has a gas valve connector (GAS VALVE). He warns that electronic products must be installed by qualified personnel, as a poor connection can damage them. He requests to check the original code of the PCB and the exact model of the boiler before purchasing.

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Baxi Roca Victoria Condens PCB · 7660426 · CU-GH04 (0580183_07)