Spare parts — usually 3–7 working days EU delivery from € 9.95 · free from € 199 In stock: delivered in 3–5 working days Delivery across the EU WebwinkelKeur 8,8/10 Pay by card, Apple Pay, Pay by Bank, PayPal & Klarna
★★★★★8,8/1024 reviews · verified by WebwinkelKeurAll reviews →

Bosch Kelvin WR 18H (GWH 18) spare parts

Find your Bosch part

Choose your appliance step by step

Or search directly

By part number, appliance type or name
Popular brands

Loading catalogue…

In brief

Instalpunt supplies 30 original parts for the Bosch Kelvin WR 18H (GWH 18), including sensors, gas valves and gas control, ignition and ionisation. Order online.

  • 30Spare parts
  • 9In stock
  • €19.76From
  • 11Types

Looking for parts for the Bosch Kelvin WR 18H (GWH 18) (instantaneous water heater)? Below are all 30 original parts, grouped by part type. Choose a type to jump straight to the right table.

Sensors for the Bosch Kelvin WR 18H (GWH 18) (1) all Bosch sensors →

PartItem no. / mfr. no.PriceStock
Nefit temperature limiter for e.g. F 2555HE-N 870720643508189078
Mfr. no. 87072064350
€46.01Made-to-order itemView & order

Gas valves and gas control for the Bosch Kelvin WR 18H (GWH 18) (2) all Bosch gas valves and gas control →

PartItem no. / mfr. no.PriceStock
Bosch gas control valve for e.g. Kelvin WR 14P (GWH 14P) 870702139508189072
Mfr. no. 87070213950
€156.32Made-to-order itemView & order
Nefit venturi for e.g. F 2555 870820527908036091
Mfr. no. 87082052790
€32.09Made-to-order itemView & order

Ignition and ionisation for the Bosch Kelvin WR 18H (GWH 18) (2) all Bosch ignition and ionisation →

PartItem no. / mfr. no.PriceStock
Nefit ignition electrode for e.g. F 2555HE-N 870810701308189086
Mfr. no. 87081070130
€51.36Made-to-order itemView & order
Bosch ignition electrode8189106
Mfr. no. 87113043380
€25.66Made-to-order itemView & order

Burners for the Bosch Kelvin WR 18H (GWH 18) (1) all Bosch burners →

PartItem no. / mfr. no.PriceStock
Nefit pilot burner for e.g. F 2555HE-N 873870474008189085
Mfr. no. 87387047400
€35.29Made-to-order itemView & order

Displays and controls for the Bosch Kelvin WR 18H (GWH 18) (1) all Bosch displays and controls →

PartItem no. / mfr. no.PriceStock
Bosch knob for e.g. Kelvin WR 11H (GWH 11) 870200029508189036
Mfr. no. 87020002950
€19.22In stockView & order

Valves for the Bosch Kelvin WR 18H (GWH 18) (1) all Bosch valves →

PartItem no. / mfr. no.PriceStock
Nefit pilot gas valve8185119
Mfr. no. 87085012490
€91.00Made-to-order itemView & order

Electrical parts for the Bosch Kelvin WR 18H (GWH 18) (2) all Bosch electrical parts →

PartItem no. / mfr. no.PriceStock
Bosch ignition transformer for e.g. Kelvin WR 11H (GWH 11) 87387163278189669
Mfr. no. 8738716327
€84.56In stockView & order
Bosch switch knob for e.g. Kelvin WR 11H (GWH 11) 870200029708189037
Mfr. no. 87020002970
€25.66Made-to-order itemView & order

Cables and wiring harnesses for the Bosch Kelvin WR 18H (GWH 18) (1) all Bosch cables and wiring harnesses →

PartItem no. / mfr. no.PriceStock
Bosch cable set for e.g. Kelvin WR 11H (GWH 11) 870440125608189045
Mfr. no. 87044012560
€34.22Made-to-order itemView & order

Gaskets and seals for the Bosch Kelvin WR 18H (GWH 18) (7) all Bosch gaskets and seals →

PartItem no. / mfr. no.PriceStock
Nefit O-ring 10 pcs for e.g. F 1400 870020500108036002
Mfr. no. 87002050010
€43.86In stockView & order
Nefit O-ring tap valve/housing 10 pcs8184176
Mfr. no. 87002050230
€22.44In stockView & order
Nefit burner gasket 10 pcs for e.g. WT 13 870100301008180257
Mfr. no. 87010030100
€17.09In stockView & order
Nefit O-ring for e.g. W 135 natural gas 870020500708184173
Mfr. no. 87002050070
€35.29Made-to-order itemView & order
Nefit O-ring 10 pcs for e.g. F 2555 870020511508036007
Mfr. no. 87002051150
€17.09In stockView & order
Bosch seal 10 pcs8189007
Mfr. no. 87001031120
€23.52Made-to-order itemView & order
Nefit O-ring 10 pcs for e.g. W 135 natural gas 874020500208184187
Mfr. no. 87402050020
€44.94Made-to-order itemView & order

Casing and panels for the Bosch Kelvin WR 18H (GWH 18) (2) all Bosch casing and panels →

PartItem no. / mfr. no.PriceStock
Bosch casing for e.g. Kelvin WR 11H (GWH 11) 870543127808189055
Mfr. no. 87054312780
€137.05Made-to-order itemView & order
Bosch panel for e.g. Kelvin WR 11H (GWH 11) 870550683608189066
Mfr. no. 87055068360
€33.16Made-to-order itemView & order

Fixing material for the Bosch Kelvin WR 18H (GWH 18) (4) all Bosch fixing material →

PartItem no. / mfr. no.PriceStock
Nefit screw 87034010690, 10 pcs8035016
Mfr. no. 87034010690
€24.59Made-to-order itemView & order
Nefit screw 29109521220, 10 pcs8035017
Mfr. no. 29109521220
€23.52Made-to-order itemView & order
Bosch temperature selector screw8189101
Mfr. no. 87085003040
€61.00Made-to-order itemView & order
Nefit bracket for e.g. F 1400 870470502408036032
Mfr. no. 87047050240
€35.29Made-to-order itemView & order

Other parts for the Bosch Kelvin WR 18H (GWH 18) (6)

PartItem no. / mfr. no.PriceStock
Nefit water section8180016
Mfr. no. 8738710118
€189.53In stockView & order
Nefit hydro generator for WR1828029204
Mfr. no. 87074060950
€124.20In stockView & order
Nefit threaded bush for e.g. F 2555 870030611008036013
Mfr. no. 87003061100
€37.44In stockView & order
Bosch water housing cover (black)80200758
Mfr. no. 8738714085
€73.86Made-to-order itemView & order
Bosch manufacturer badge for e.g. Kelvin WR 11H (GWH 11) 870110313508189030
Mfr. no. 87011031350
€25.66Made-to-order itemView & order
Bosch flue outlet stub Ø1308189061
Mfr. no. 87055040390
€23.52Made-to-order itemView & order

Fault code on your Bosch Kelvin WR 18H (GWH 18)? This is the part type involved

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

CodeWhat is going onPart type
2P564Temperature sensor temperature rising too fast (> 70 K/min).Sensors
8C373The burner thermostat has measured an excessive temperature more often than permitted.Burners
8C374Insufficient ionisation current has been measured during firing more often than permitted.Ignition and ionisation
9A235The KIM is too new for the burner control unit.Burners
9U233The burner control unit or the KIM is faulty.Burners
227 VNo flame signal after ignitionIgnition and ionisation

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

Other Bosch instantaneous water heaters

← All Bosch parts

Frequently asked questions

Which parts are available for the Bosch Kelvin WR 18H (GWH 18)?

The catalogue lists 30 original parts for the Bosch Kelvin WR 18H (GWH 18), including sensors, gas valves and gas control, ignition and ionisation, burners. All parts are listed above, grouped by type, with part number and price.

How much does a sensor for the Bosch Kelvin WR 18H (GWH 18) cost?

The sensors for this model cost €46.01 incl. VAT. Check the table "Sensors" above for the right part number.

Are the parts for the Bosch Kelvin WR 18H (GWH 18) in stock?

9 of the 30 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 Bosch Kelvin WR 18H (GWH 18)?

Search for the part by part number or use the parts list of the Bosch Kelvin WR 18H (GWH 18). Is your appliance showing a fault code? The fault code table shows the matching part type.

Are these original Bosch parts?

Yes. All 30 parts in this list are original manufacturer parts for the Bosch Kelvin WR 18H (GWH 18), delivered with the correct part number.

How much do parts for the Bosch Kelvin WR 18H (GWH 18) cost?

Parts for the Bosch Kelvin WR 18H (GWH 18) range from €17.09 to €189.53 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.
Scroll to Top