Vaillant aroTHERM VWL 125/5 AS spare parts

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In brief

Instalpunt supplies 75 original parts for the Vaillant aroTHERM VWL 125/5 AS, including fans, sensors, pressure switches and differential pressure switches. Order online.

75Spare parts
7In stock
€13.57From
17Types
availableExploded view

Looking for parts for the Vaillant aroTHERM VWL 125/5 AS (heat pump)? Below are all 75 original parts, grouped by part type, with the matching exploded view. Choose a type to jump straight to the right table.

View the interactive exploded view →

Fans 1
Sensors 4
Pressure switches and differential pressure switches 1
PCBs and controls 2
Expansion valves 1
Compressors 1
Siphons and condensate drains 1
Filters 2
Valves 5
Heating elements 1
Electrical parts 3
Cables and wiring harnesses 6
Gaskets and seals 1
Pipes, tubes and hoses 1
Casing and panels 20
Insulation 4
Fixing material 16
Other parts 5

Fans for the Vaillant aroTHERM VWL 125/5 AS (1) all Vaillant fans →

Part	Item no. / mfr. no.	Price	Stock
Vaillant fan for e.g. aroTHERM VWL 35/5 AS 0020266326	80501202 Mfr. no. 0020266326	€640.45	Made-to-order item	View & order

Sensors for the Vaillant aroTHERM VWL 125/5 AS (4) all Vaillant sensors →

Part	Item no. / mfr. no.	Price	Stock
Vaillant temperature sensor	8050664 Mfr. no. 0020148022	€37.44	In stock	View & order
Vaillant sensor for e.g. flexoTHERM VWF 87/4 0020210697	90170249 Mfr. no. 0020210697	€113.48	Made-to-order item	View & order
Vaillant temperature limiter for e.g. aroTHERM Split plus VWL 55/8.2 AS 230V 0020266436	80501068 Mfr. no. 0020266436	€64.21	Made-to-order item	View & order
Vaillant frost protection, condensate drain	80501135 Mfr. no. 0010027548	€159.54	Made-to-order item	View & order

Pressure switches and differential pressure switches for the Vaillant aroTHERM VWL 125/5 AS (1) all Vaillant pressure switches and differential pressure switches →

Part	Item no. / mfr. no.	Price	Stock
Vaillant pressure switch, high pressure	80501024 Mfr. no. 0020266435	€71.71	Made-to-order item	View & order

PCBs and controls for the Vaillant aroTHERM VWL 125/5 AS (2) all Vaillant PCBs and controls →

Part	Item no. / mfr. no.	Price	Stock
Vaillant PCB, installer board 3PH	80501140 Mfr. no. 0020233814	€182.03	In stock	View & order
Vaillant PCB for e.g. aroTHERM VWL 75/6 A 8000043822	10161194 Mfr. no. 8000043822	€289.14	In stock	View & order

Expansion valves for the Vaillant aroTHERM VWL 125/5 AS (1) all Vaillant expansion valves →

Part	Item no. / mfr. no.	Price	Stock
Vaillant expansion valve 11-15kW	8051912 Mfr. no. 0020175865	€109.20	Made-to-order item	View & order

Compressors for the Vaillant aroTHERM VWL 125/5 AS (1) all Vaillant compressors →

Part	Item no. / mfr. no.	Price	Stock
Vaillant compressor, 15k 1P	80501197 Mfr. no. 0020192779	€831.11	In stock	View & order

Siphons and condensate drains for the Vaillant aroTHERM VWL 125/5 AS (1) all Vaillant siphons and condensate drains →

Part	Item no. / mfr. no.	Price	Stock
Vaillant condensate drain	80500990 Mfr. no. 0020268739	€21.37	In stock	View & order

Filters for the Vaillant aroTHERM VWL 125/5 AS (2) all Vaillant filters →

Part	Item no. / mfr. no.	Price	Stock
Vaillant filter for e.g. aroTHERM Pro VWL 75/7.1 A 230V 0020266439	80501069 Mfr. no. 0020266439	€51.36	In stock	View & order
Vaillant filter for e.g. aroTHERM Pro VWL 75/7.1 A 230V 0020175862	8051919 Mfr. no. 0020175862	€29.94	Made-to-order item	View & order

Valves for the Vaillant aroTHERM VWL 125/5 AS (5) all Vaillant valves →

Part	Item no. / mfr. no.	Price	Stock
Vaillant valve for e.g. aroTHERM VWL 55/3 A 230V 0020266437	80500985 Mfr. no. 0020266437	€26.72	In stock	View & order
Vaillant valve, Schrader (x5)	80500948 Mfr. no. 0010027681	€32.09	Made-to-order item	View & order
Vaillant valve 3/8	80501074 Mfr. no. 0020266448	€64.21	Made-to-order item	View & order
Vaillant valve for e.g. aroTHERM VWL 125/5 AS 0020266454	80501076 Mfr. no. 0020266454	€70.64	Made-to-order item	View & order
Vaillant valve 5/8	80501072 Mfr. no. 0020266446	€71.71	Made-to-order item	View & order

Heating elements for the Vaillant aroTHERM VWL 125/5 AS (1) all Vaillant heating elements →

Part	Item no. / mfr. no.	Price	Stock
Vaillant compressor heater for e.g. aroTHERM VWL 75/6 A 0020175853	8054586 Mfr. no. 0020175853	€58.86	Made-to-order item	View & order

Electrical parts for the Vaillant aroTHERM VWL 125/5 AS (3) all Vaillant electrical parts →

Part	Item no. / mfr. no.	Price	Stock
Vaillant coil for e.g. aroTHERM VWL 75/6 A 0020266434	80501067 Mfr. no. 0020266434	€61.00	Made-to-order item	View & order
Vaillant coil for e.g. aroTHERM VWL 125/6 A 400V 0020266489	80501222 Mfr. no. 0020266489	€304.14	Made-to-order item	View & order
Vaillant coil for e.g. aroTHERM VWL 55/3 A 230V 0020148034	8050825 Mfr. no. 0020148034	€74.93	Made-to-order item	View & order

Cables and wiring harnesses for the Vaillant aroTHERM VWL 125/5 AS (6) all Vaillant cables and wiring harnesses →

Part	Item no. / mfr. no.	Price	Stock
Vaillant connector for e.g. aroTHERM Pro VWL 75/7.1 A 230V 0020266328	80500906 Mfr. no. 0020266328	€27.80	Made-to-order item	View & order
Vaillant wiring harness, inverter/compressor	80501123 Mfr. no. 0020273273	€101.70	Made-to-order item	View & order
Vaillant wiring harness, inverter 3PH	80501122 Mfr. no. 0020273271	€113.48	Made-to-order item	View & order
Vaillant wiring harness, 230/400V	80501210 Mfr. no. 0020266347	€124.20	Made-to-order item	View & order
Vaillant wiring harness, 24V for e.g. aroTHERM VWL 125/5 AS 0010027551	80501182 Mfr. no. 0010027551	€208.81	Made-to-order item	View & order
Vaillant connector, coding 0010035385	80501762 Mfr. no. 0010035385	€27.80	Made-to-order item	View & order

Gaskets and seals for the Vaillant aroTHERM VWL 125/5 AS (1) all Vaillant gaskets and seals →

Part	Item no. / mfr. no.	Price	Stock
Vaillant gasket for e.g. aroTHERM VWL 75/6 A 0020266357	80500981 Mfr. no. 0020266357	€33.16	Made-to-order item	View & order

Pipes, tubes and hoses for the Vaillant aroTHERM VWL 125/5 AS (1) all Vaillant pipes, tubes and hoses →

Part	Item no. / mfr. no.	Price	Stock
Vaillant hose for e.g. aroTHERM VWL 75/6 A 0020060808	8053979 Mfr. no. 0020060808	€25.66	Made-to-order item	View & order

Casing and panels for the Vaillant aroTHERM VWL 125/5 AS (20) all Vaillant casing and panels →

Part	Item no. / mfr. no.	Price	Stock
Vaillant cover, switch box	80501010 Mfr. no. 0020273321	€29.94	Made-to-order item	View & order
Vaillant protective cap (set 1/2, 1/4, 3/8, 5/8)	80501019 Mfr. no. 0020278358	€29.94	Made-to-order item	View & order
Vaillant logo plate for e.g. aroTHERM VWL 35/5 AS 0020266376	80500983 Mfr. no. 0020266376	€44.94	Made-to-order item	View & order
Vaillant cover for e.g. aroTHERM VWL 35/5 AS 0020266391	80500984 Mfr. no. 0020266391	€49.22	Made-to-order item	View & order
Vaillant cover for e.g. aroTHERM Split plus VWL 55/8.2 AS 230V 0020273327	80501124 Mfr. no. 0020273327	€64.21	Made-to-order item	View & order
Vaillant cover, inverter	80501125 Mfr. no. 0020273330	€64.21	Made-to-order item	View & order
Vaillant logo plate for e.g. aroTHERM VWL 75/6 A 0020266395	80501065 Mfr. no. 0020266395	€68.50	Made-to-order item	View & order
Vaillant casing parts, corner L for e.g. aroTHERM VWL 125/6 A 400V 0010027561	80501183 Mfr. no. 0010027561	€321.28	Made-to-order item	View & order
Vaillant casing parts, corner L for e.g. aroTHERM VWL 125/6 A 400V 0010027562	80501184 Mfr. no. 0010027562	€323.41	Made-to-order item	View & order
Vaillant casing parts, corner L for e.g. aroTHERM VWL 125/5 AS 0010027563	80501185 Mfr. no. 0010027563	€324.48	Made-to-order item	View & order
Vaillant side panel, L for e.g. aroTHERM VWL 125/6 A 400V 0020266334	80501205 Mfr. no. 0020266334	€340.55	Made-to-order item	View & order
Vaillant side panel, L for e.g. aroTHERM VWL 125/6 A 400V 0020266365	80501215 Mfr. no. 0020266365	€338.41	Made-to-order item	View & order
Vaillant front panel, L for e.g. aroTHERM VWL 125/5 AS 0020266337	80501207 Mfr. no. 0020266337	€355.55	Made-to-order item	View & order
Vaillant cover for e.g. aroTHERM VWL 75/6 A 0010026000	80501134 Mfr. no. 0010026000	€327.70	Made-to-order item	View & order
Vaillant front panel, L for e.g. aroTHERM VWL 125/5 AS 0020266338	80501208 Mfr. no. 0020266338	€355.55	Made-to-order item	View & order
Vaillant side panel, L for e.g. aroTHERM VWL 125/5 AS 0010028139	80501190 Mfr. no. 0010028139	€340.55	Made-to-order item	View & order
Vaillant grille, L for e.g. aroTHERM VWL 125/6 A 400V 0020266372	80501141 Mfr. no. 0020266372	€434.81	Made-to-order item	View & order
Vaillant grille, L for e.g. aroTHERM VWL 125/5 AS 0010027564	80501186 Mfr. no. 0010027564	€791.47	Made-to-order item	View & order
Vaillant cover for e.g. aroTHERM VWL 75/6 A 0010038451	80508290 Mfr. no. 0010038451	€142.40	Made-to-order item	View & order
Vaillant cover for e.g. aroTHERM VWL 35/5 AS 0010038454	80599908 Mfr. no. 0010038454	€49.22	Made-to-order item	View & order

Insulation for the Vaillant aroTHERM VWL 125/5 AS (4) all Vaillant insulation →

Part	Item no. / mfr. no.	Price	Stock
Vaillant insulation, (2 pcs)	80500924 Mfr. no. 0020273331	€24.59	Made-to-order item	View & order
Vaillant insulation, casing parts	80500925 Mfr. no. 0020273332	€27.80	Made-to-order item	View & order
Vaillant insulation (set) for e.g. aroTHERM VWL 75/6 A 0020266358	80500982 Mfr. no. 0020266358	€34.22	Made-to-order item	View & order
Vaillant insulation (set) for e.g. aroTHERM VWL 125/5 AS 0020266441	80501070 Mfr. no. 0020266441	€94.20	Made-to-order item	View & order

Fixing material for the Vaillant aroTHERM VWL 125/5 AS (16) all Vaillant fixing material →

Part	Item no. / mfr. no.	Price	Stock
Vaillant screw 0020073877, 10 pcs	8055017 Mfr. no. 0020073877	€11.74	Made-to-order item	View & order
Vaillant screw 0020195593, 10 pcs	80500893 Mfr. no. 0020195593	€23.52	Made-to-order item	View & order
Vaillant screw 0020266342, 10 pcs	80500907 Mfr. no. 0020266342	€25.66	Made-to-order item	View & order
Vaillant clamp, (5 pcs)	80500922 Mfr. no. 0020273318	€25.66	Made-to-order item	View & order
Vaillant clip, (10 pcs) for e.g. aroTHERM VWL 75/6 A 0020273322	80500923 Mfr. no. 0020273322	€25.66	Made-to-order item	View & order
Vaillant holder for e.g. aroTHERM VWL 35/5 AS 0020273315	80500919 Mfr. no. 0020273315	€27.80	Made-to-order item	View & order
Vaillant clamp, (10 pcs) for e.g. aroTHERM Split plus VWL 55/8.2 AS 230V 0020266327	80500905 Mfr. no. 0020266327	€27.80	Made-to-order item	View & order
Vaillant screw (5 pcs)	80500921 Mfr. no. 0020273317	€27.80	Made-to-order item	View & order
Vaillant holder for e.g. aroTHERM VWL 35/5 AS 0020273316	80500920 Mfr. no. 0020273316	€29.94	Made-to-order item	View & order
Vaillant clip, (5 pcs)	80501003 Mfr. no. 0020269433	€28.87	Made-to-order item	View & order
Vaillant clamping band, (5 pcs)	80500980 Mfr. no. 0020266330	€29.94	Made-to-order item	View & order
Vaillant holder for e.g. aroTHERM VWL 75/6 A 0020273324	80501011 Mfr. no. 0020273324	€47.08	Made-to-order item	View & order
Vaillant fixing set, compressor	80501066 Mfr. no. 0020266429	€65.28	Made-to-order item	View & order
Vaillant nut 5 pcs for e.g. aroTHERM VWL 35/5 AS 0020278346	80501339 Mfr. no. 0020278346	€24.59	Made-to-order item	View & order
Vaillant spacer 10 pcs	80501353 Mfr. no. 0020266340	€28.87	Made-to-order item	View & order
Vaillant clamp 10 pcs for e.g. aroTHERM VWL 35/5 AS 0020266345	80501356 Mfr. no. 0020266345	€33.16	Made-to-order item	View & order

Other parts for the Vaillant aroTHERM VWL 125/5 AS (5)

Part	Item no. / mfr. no.	Price	Stock
Vaillant counterweight	80500986 Mfr. no. 0020266438	€46.01	Made-to-order item	View & order
Vaillant box, control box	80501012 Mfr. no. 0020273329	€48.14	Made-to-order item	View & order
Vaillant cable tie (100 pcs)	80501009 Mfr. no. 0020273320	€52.43	Made-to-order item	View & order
Vaillant refrigerant collector for e.g. aroTHERM VWL 125/5 AS 0020278079	80501252 Mfr. no. 0020278079	€124.20	Made-to-order item	View & order
Vaillant inverter for e.g. aroTHERM VWL 125/5 AS 0020266450	80501142 Mfr. no. 0020266450	€1,212.41	Made-to-order item	View & order

Exploded views of the Vaillant aroTHERM VWL 125/5 AS

Click an exploded view to enlarge it. The position numbers are shown next to each part.

Fault code on your Vaillant aroTHERM VWL 125/5 AS? This is the part type involved

Common Vaillant fault codes and the part type that is usually the cause; the parts for this model are listed above. All codes explained: Vaillant fault codes.

Code	What is going on	Part type
F.00	The flow temperature sensor signal is interrupted.	Sensors
F.01	The return temperature sensor signal is interrupted.	Sensors
F.02	The hot water connection temperature sensor signal is interrupted.	Sensors
F.022	Pressure loss in the heating circuit due to a leak or air lock, heating circuit pressure sensor defective	Sensors
F.03	The cylinder temperature sensor signal is interrupted.	Sensors
F.037	Obstruction in the product's air duct, fan motor defective or not connected, connection between the main PCB and the fan PCB damaged or interrupted	Fans

For guidance only: the same code can have a different cause depending on the situation.

Other Vaillant heat pumps

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Frequently asked questions

Which parts are available for the Vaillant aroTHERM VWL 125/5 AS?

The catalogue lists 75 original parts for the Vaillant aroTHERM VWL 125/5 AS, including fans, sensors, pressure switches and differential pressure switches, PCBs and controls. All parts are listed above, grouped by type, with part number and price.

How much does a fan for the Vaillant aroTHERM VWL 125/5 AS cost?

The fans for this model cost €640.45 incl. VAT. Check the table "Fans" above for the right part number.

Are the parts for the Vaillant aroTHERM VWL 125/5 AS in stock?

7 of the 75 parts are in stock; shipping €9.95 to Austria, Denmark, Italy, Spain and Sweden and €12.95 to the other EU countries, free from €199, usually 3–5 working days. Parts marked "Made-to-order item" are ordered specially for you; the delivery time is shown on the product page.

How do I know which part I need for the Vaillant aroTHERM VWL 125/5 AS?

Search for the part by part number or use the exploded view of the Vaillant aroTHERM VWL 125/5 AS.

Are these original Vaillant parts?

Yes. All 75 parts in this list are original manufacturer parts for the Vaillant aroTHERM VWL 125/5 AS, delivered with the correct part number.

How much do parts for the Vaillant aroTHERM VWL 125/5 AS cost?

Parts for the Vaillant aroTHERM VWL 125/5 AS range from €11.74 to €1,212.41 incl. VAT. The exact price of each part is shown in the tables above.

Can I return a part?

As a consumer you have a 14-day right of withdrawal. You may unpack and inspect the part; do not install or connect it. For a part that has been installed, connected or damaged we deduct the diminished value, up to the full price for circuit boards.