Atag OSS 3 spare parts
In brief
Instalpunt supplies 33 original parts for the Atag OSS 3, including sensors, pressure sensors, gas valves and gas control. Order online.
- 33Spare parts
- 27In stock
- €19.71From
- 10Types
Looking for parts for the Atag OSS 3 (heat exchanger)? Below are all 33 original parts, grouped by part type. Choose a type to jump straight to the right table.
Quick left to the right part for the Atag OSS 3
| Part | From | Delivery |
|---|---|---|
| Ignition part Atag ignition electrode incl. seal Q and SHR after new heat exchanger 2013 from 2009 | €108.63 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
| Pressure sensor Atag water pressure sensor Huba | €119.03 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
Prices incl. VAT, taken directly from our checkout. Below is the complete parts list for this model.
Installer or self-employed engineer? Create a business account: prices excl. VAT and invoices in your company name.
- Sensors 2
- Pressure sensors 1
- Gas valves and gas control 1
- Ignition and ionisation 1
- Burners 1
- Maintenance and service kits 2
- Valves 2
- Gaskets and seals 10
- Pipes, tubes and hoses 1
- Fixing material 4
- Other parts 8
Sensors for the Atag OSS 3 (2)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag sensor hot water cylinder/return T2-3-8-9 | 8135300 Mfr. no. S4309700 | €29.07 | In stock | View & order |
| Atag flow sensor/DHW T1 12k ohm | 8135000 Mfr. no. S4307420 | €46.23 | In stock | View & order |
Pressure sensors for the Atag OSS 3 (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag water pressure sensor Huba | 8135490 Mfr. no. S4466300 | €119.03 | In stock | View & order |
Gas valves and gas control for the Atag OSS 3 (1) all Atag gas valves and gas control →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag venturi SHR51/60 | 8139123 Mfr. no. S4319020 | €126.83 | Made-to-order item | View & order |
Ignition and ionisation for the Atag OSS 3 (1) all Atag ignition and ionisation →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag ignition electrode incl. seal Q and SHR after new heat exchanger 2013 from 2009 | 8138101 Mfr. no. S4710100 | €108.63 | In stock | View & order |
Burners for the Atag OSS 3 (1) all Atag burners →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag burner bed OSS3/4 natural gas | 8138129 Mfr. no. S4825600 | €380.59 | In stock | View & order |
Maintenance and service kits for the Atag OSS 3 (2) all Atag maintenance and service kits →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag maintenance set for OSS3/4 | 8139225 Mfr. no. S4784900 | €95.63 | In stock | View & order |
| Atag maintenance set OSS3/4 with ignition electrode | 8139604 Mfr. no. S4785700 | €178.83 | In stock | View & order |
Valves for the Atag OSS 3 (2) all Atag valves →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag safety relief valve Duco 3 bar | 8135200 Mfr. no. S4344630 | €44.15 | In stock | View & order |
| Atag automatic air vent chrome SHR for OSS1/2/3/4 | 8135041 Mfr. no. S4419110 | €67.55 | In stock | View & order |
Gaskets and seals for the Atag OSS 3 (10) all Atag gaskets and seals →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag sealing ring gas valve/venturi for OSS1/2/3/4 | 8139033 Mfr. no. S4337610 | €25.95 | In stock | View & order |
| Atag sealing ring venturi/fan for OSS1/2/3/4 | 8139034 Mfr. no. S4325610 | €25.95 | In stock | View & order |
| Atag lip seal 80mm for OSS1/2/3/4 | 8135123 Mfr. no. S4304200 | €33.23 | In stock | View & order |
| Atag seal burner bed/upper tray for OSS3/4 | 8138120 Mfr. no. S4717400 | €44.67 | In stock | View & order |
| Atag seal heat exchanger/upper tray for OSS3/4 | 8138122 Mfr. no. S4719900 | €41.55 | In stock | View & order |
| Atag sealing ring intake fan SHR for OSS1/2/3/4 | 8135246 Mfr. no. S4309500 | €23.87 | In stock | View & order |
| Atag gasket fan mouth SHR for OSS1/2/3/4 | 8135270 Mfr. no. S4305700 | €25.95 | In stock | View & order |
| Atag O-ring 13.94 x 2.62 mm air vent/plate heat exchanger for OSS1/2/3/4 | 8131325 Mfr. no. S4342300 | €24.91 | In stock | View & order |
| Atag seal lower tray for OSS3/4 | 8138123 Mfr. no. S4724500 | €37.39 | In stock | View & order |
| Atag gasket electrode ionisation ignition | 8135260 Mfr. no. S4397100 | €37.39 | In stock | View & order |
Pipes, tubes and hoses for the Atag OSS 3 (1) all Atag pipes, tubes and hoses →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag safety relief pipe for OSS1/2/3/4 | 8137040 Mfr. no. S4467300 | €45.71 | In stock | View & order |
Fixing material for the Atag OSS 3 (4) all Atag fixing material →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag screw M5 x 12 mm hex socket countersunk (3 pcs) for OSS1/2/3/4 | 8139217 Mfr. no. S4440000 | €23.87 | In stock | View & order |
| Atag cap air vent SHR 3 pcs for OSS1/2/3/4 | 8139162 Mfr. no. S4380600 | €43.63 | Made-to-order item | View & order |
| Atag screw taptite M5 x 8 mm ck-pd (3 x ) | 8139214 Mfr. no. S4167500 | €22.83 | In stock | View & order |
| Atag bolt M5 x 12 mm gr phase hexagon din7985 (5 x ) | 8139213 Mfr. no. S4418710 | €26.99 | In stock | View & order |
Other parts for the Atag OSS 3 (8)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag condensate tray assembled 60kW OSS3/4 | 8138108 Mfr. no. S4730800 | €149.19 | In stock | View & order |
| Atag clamping rod condensate tray for OSS1/2/3/4 | 8139052 Mfr. no. S4310700 | €33.23 | In stock | View & order |
| Atag burner toggle rod for OSS1/2/3/4 | 8139057 Mfr. no. S4310800 | €34.27 | In stock | View & order |
| Atag water trap pressure sensor | 8137098 Mfr. no. S4325900 | €36.35 | In stock | View & order |
| Atag intake piece SHR51/60 | 8135419 Mfr. no. S4324720 | €62.35 | Made-to-order item | View & order |
| Atag upper tray assy OSS3/4 | 8139582 Mfr. no. S4735200 | €152.83 | Made-to-order item | View & order |
| Atag condensate plug 1/4" for OSS1/2/3/4 | 8139712 Mfr. no. S4674500 | €32.19 | Made-to-order item | View & order |
| Atag hose clamp stainless steel 20-32mm for OSS1/2/3/4 | 8139224 Mfr. no. S4395600 | €33.23 | Made-to-order item | View & order |
Fault code on your Atag OSS 3? This is the part type involved
Common Atag fault codes and the part type that is usually the cause; the parts for this model are listed above.
| Code | What is going on | Part type |
|---|---|---|
| 1 | TD sensor error | Sensors |
| 10 | Outdoor sensor fault (e.g. open, short-circuited, out of range) | Sensors |
| 20 | Flow temperature sensor defective | Sensors |
| 40 | Temperature exceeded at the burner flow temperature sensor. | Burners |
| 102 | Pressure sensor defective | Sensors |
| 114 | Outdoor sensor fault (e.g. open, short-circuited, out of range) | Sensors |
For guidance only: the same code can have a different cause depending on the situation.
Other Atag heat exchanger-models
Frequently asked questions
Which parts are available for the Atag OSS 3?
The catalogue lists 33 original parts for the Atag OSS 3, including sensors, pressure sensors, gas valves and gas control, ignition and ionisation. All parts are listed above, grouped by type, with part number and price.
How much does a sensor for the Atag OSS 3 cost?
The sensors for this model cost between €38.05 and €61.16 incl. VAT. Check the table "Sensors" above for the right part number.
Are the parts for the Atag OSS 3 in stock?
27 of the 33 parts are in stock; shipping to EU countries from €12.95 (€16.95 for more distant countries), 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 Atag OSS 3?
Search for the part by part number or use the parts list of the Atag OSS 3. Is your appliance showing a fault code? The fault code table shows the matching part type.
Are these original Atag parts?
Yes. All 33 parts in this list are original manufacturer parts for the Atag OSS 3, delivered with the correct part number.
How much do parts for the Atag OSS 3 cost?
Parts for the Atag OSS 3 range from €19.71 to €400.93 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.