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Same part, different name. Vaillant, Bulex and Saunier Duval belong to the same manufacturer group and use the same part numbers: if your Bulex or Saunier Duval part carries number 0020233813, this is that part.
According to the Vaillant parts lists, this part fits 9 models, including Vaillant aroTHERM VWL 35/5 AS, Vaillant aroTHERM VWL 35/6 A and Vaillant aroTHERM VWL 35/6 A R1. The full list is under “Fits”.
In stock: order before 14:00 and it ships the same working day; delivery within the EU usually takes 3–5 working days.
Check the rating plate of your appliance before ordering; if in doubt, ask the manufacturer or your installer.
Supplied through the official technical wholesale channel, under Vaillant number0020233813
Also known as: printplaat, besturingsprint, PCB.
Fits 9 Vaillant models
The partVaillant PCB, installer board 1PH 0020233813is in the official parts list of these Vaillant appliances. Click a model for the complete parts list and exploded view.
Check the rating plate of your appliance. Not sure whether this part fits? Check with the manufacturer or your installer; with the correct manufacturer number you can order it here directly.
Does this fit my appliance?
Enter your appliance type, for example as shown on the rating plate. You will see straight away whether the Vaillant PCB, installer board 1PH 0020233813 is in the parts list of that model.
This spare part is shown as position 04 on the parts drawing. Open the drawing for the appliance and click the number to check that you have the right spare part.
According to the fault code database, these Vaillant fault codes point to this type of part. Always check first that the code matches the appliance type on the rating plate.
Contact S20 on heat pump main PCB (HMU) open, incorrect high-limit thermostat setting, flow temperature sensor (heat pump, gas boiler, system sensor) reading too low
Indicative: the same code can have a different cause depending on the situation. Have work on gas, flue or burner adjustment carried out by a qualified installer.
Frequently asked questions about this item
Does the Vaillant PCB, installer board 1PH 0020233813 fit my appliance?
This part is in the parts list of 9 Vaillant models, including the aroTHERM VWL 35/5 AS, aroTHERM VWL 35/6 A, aroTHERM VWL 35/6 A R1, aroTHERM VWL 35/6 A R2. The model type is on the rating plate of your appliance. Use the “Does this fit my appliance?” search box on this page to check your model. If in doubt, ask the manufacturer or your installer.
What is the delivery time for the Vaillant PCB, installer board 1PH 0020233813?
This item is in stock. Ordered before 14:00, it ships the same working day and usually arrives within three to five working days.
Can I return this item?
Yes, unused and in the original packaging within 14 days of receipt. Unpacked or fitted items and electronics such as PCBs cannot be returned. How to register a return is explained on returns.
What does shipping cost?
Shipping costs € 17.95 to Austria, Denmark, Italy, Spain and Sweden and € 24.95 to other EU countries. In-stock items ordered before 2 pm are dispatched the same working day; delivery usually takes 3–5 working days. Details: Shipping.
I have a fault code, which part do I need?
Look up the code in the fault code finder: per brand and appliance it shows what the code means and which part goes with it. If the code is listed with this part, the part belongs to that fault.
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