V-GROUP PM-01 PCB · 0020023308 / 0020028479 · Saunier Duval Isomax F35 E Isotwin F30

Price pending confirmation; please consult us before booking. The PCB controls the boiler. The reference 0020028479 is associated with ignition faults, erratic errors, or restarts; first check the power supply and fuses. The application is still pending confirmation.

Type of part: Saunier Duval
Status: Refurbished
internal SKU: PLC060
Warranty: 1 year

VAT included OUT OF STOCK

Compatibility

Compatible Saunier Duval boilers

Saunier Duval. Two confirmed compatibilities: Saunier Duval Isomax F35 HMOD (F 35 H-MOD) and Saunier Duval Isotwin F30 H-MOD. There are two other models that we are still verifying.

Proven compatibility

Boiler model	Family	Verification
Saunier Duval Isomax F35 HMOD (F 35 H-MOD)	Saunier Duval	Contrasted
Saunier Duval Isotwin F30 H-MOD	Saunier Duval	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.

Saunier Duval Isotwin F25 EH-MOD	Saunier Duval	Unconfirmed
Saunier Duval Isofast E 35 H MOD	Saunier Duval	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 for the designation "PM-01" on your PCB and the 10-digit code marked: 0020023308 or 0020028479.
Compare this code with that of your PCB: Registered confirmation: 0020023308 for the Isomax F35 HMOD and 0020028479 for the Isotwin F30 H-MOD.
To confirm: Do not mix them with 0020048284 (=0020023308, without explanation) or with 0020027894 and 0020027893, which are for Isotwin F 30 and F 25.
Also compare the terminals: the 0020023308 marks 24 V and capacitors of 250 V~; the 0020028479 has terminals of 230 V and 24 V and a relay K15 of 230 V.
If they match, call us at 911 17 77 77 with the model of your boiler.

Diagnosis and fault codes

Symptoms that require diagnosis in the Saunier Duval.

Common symptoms and faults

01
The boiler does not ignite or respond to any user commands.
Cause: To confirm: it is related to the PCB 0020028479; first check power supply and fuses.
02
The display shows erratic fault codes or strange faults.
Cause: It indicates a faulty PCB, especially if the boiler shuts down by itself.
03
Spontaneous resets during normal operation
Cause: They are mentioned alongside stuck relays or burnt tracks, visible on 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

Saunier Duval

Uniclima internal SKU: PLC060
Brand: Saunier Duval
Type of part: Saunier Duval
Units in stock: 0 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 terminals: 230V;24V;230RelX15
Inventory — Voltage markers: 230 V and 24 V
Inventory — Application indicated in inventory: ISOTWIN F30 H-MOD
Identification — Marked designation: PM-01
Identification — Marked code: 0020028479
Serigrafia bornes: 230V;24V;230RelX15
Inventory data — Voltage markers/labels: 230 V and 24 V
Inventory data — Application indicated in inventory: ISOTWIN F30 H-MOD

Before purchasing

To confirm: Saunier Duval Isotwin F25 EH-MOD: (0020028479); gives 0020027893 for the F 25 E H-MOD.
To confirm: Saunier Duval Isofast E 35 H MOD — valid: it writes 0020023308 but it contradicts itself (does not count); it writes it cut off, "002002330" (ambiguous)
Not compatible or excluded: Saunier Duval Isotwin F 30 E H-MOD — they provide another PCB: 0020027894
Do not confuse: 0020048284 — board identified with code 288.66.0058, which appears next to 0020023308. It has not been confirmed that 0020048284 and 0020023308 are equivalent; compare the code of your board.
Do not confuse: 0020027894 — Main PCB ("Carte principale") of the Isotwin F 30 E H-MOD, and; the one for the F 30 H-MOD — Another code; none of those mention 0020028479 or 0020023308. Registered confirmation: 0020028479 for the F30 H-MOD.
Do not confuse: 0020027893 — Main PCB for the Isotwin F 25 E H-MOD — Another code; gives 0020028479 for the F25 EH-MOD: they differ.
Not confirmed: PM-01 nor V-GROUP. It has not been confirmed that 0020023308, 0020028479, and 0020048284 are equivalents. The codes are not clarified for the Isomax F 35 H-MOD; compare all the markings on your PCB before replacing it.
by code: (0020023308), (0020028479). also write 0020023308, but it contradicts (ISOMAX F35E H-MOD / ISOFAST E 35 H MOD) and does not count. other PCBs for the Isotwin. The reviewed manuals do not mention PM-01.

Frequently Asked Questions

Frequently asked questions: Saunier Duval

How do I identify this PCB V-GROUP PM-01?

Look for the designation PM-01 on the plate and the 10-digit code marked: 0020023308 on our Isomax F35 HMOD unit and 0020028479 on the Isotwin F30 H-MOD unit. Also compare the terminals: the first one marks 24 V and capacitors of 250 V~; the second one, 230 V and 24 V and a relay K15 of 230 V.

Is it compatible with my Saunier Duval Isomax F35 H-MOD?

Yes. The PCB 0020023308 is confirmed for Saunier Duval Isomax F35 H-MOD. The association 0020048284=0020023308 presents contradictory names: ISOMAX F35E H-MOD, ISOFAST E 35 H MOD, and ISOTWIN C 30. This association is not used as additional confirmation. The code has not been found in the user manual or in the reviewed installation fragments of Isomax F 35 H-MOD.

Is it compatible with my Saunier Duval Isotwin F30 H-MOD?

Yes. The PCB 0020028479 is confirmed for Saunier Duval Isotwin F30 H-MOD. It also appears for Isotwin F30 H-MOD 3s and F25 EH-MOD. For F 30 H-MOD another PCB is identified, 0020027894; compare the marked code.

What is the difference between 0020023308 and 0020028479?

They are two different Saunier Duval codes. Our two units have the same designation PM-01, but one is marked 0020023308 (Isomax F35 HMOD) and the other 0020028479 (Isotwin F30 H-MOD). Without additional confirmation, they consider them equivalent: choose the one that matches the code of your PCB.

What does 0020048284=0020023308 mean in some technical sheets?

The technical sheet of 0020023308 and the technical sheet of 20048284 state it without explaining the equivalence. It gives 0020048284 as the manufacturer code for its PCB 288.66.0058, with the Isomax F35H-MOD in its table, and does not mention 0020023308. We cannot say they are the same part: compare the code marked on your PCB.

Is it the same PCB as 0020027894 or 0020027893 from other Isotwin models?

It is not listed. They provide 0020027894 as the main PCB for the Isotwin F 30 E H-MOD; it is also given for the F 30 H-MOD. They provide 0020027893 for the F 25 E H-MOD. None mention 0020028479 or 0020023308: compare the code of your PCB.

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

what does 0020028479 sell: does not ignite or does not respond, erratic errors on the display, spontaneous restarts, stuck relays or burnt tracks; first check power supply and fuses. It is not advisable to install it without experience and it asks to cut the power. It is recommended to have a qualified technician; the unit 0020028479 has 230 V terminals.

How to identify this PCB?

Compare the silkscreen, the distribution of the connectors, and the exact variant of the circuit with the photographs.

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V-GROUP PM-01 PCB · 0020023308 / 0020028479 · Saunier Duval Isomax F35 E Isotwin F30