Atag Q25SC 200N OSS1 spare parts

In brief

Instalpunt supplies 119 original parts for the Atag Q25SC 200N OSS1, including fans, sensors, pressure sensors. Order online.

119Spare parts
73In stock
€17.67From
22Types
availableExploded view

Looking for parts for the Atag Q25SC 200N OSS1 (boiler)? Below are all 119 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 →

Quick left to the right part for the Atag Q25SC 200N OSS1

Part	From	Delivery
Fan Atag fan assembled 24V DC SHR15/24/35	€208.99	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).
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).
Pump Atag pump UPMO 20-60 130 9u 230V MOD	€349.39	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).
Burner control unit Atag burner control unit 1418 for ZGCHR	€553.23	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).
Display Atag display PCB MCBA 1415 Q series	€145.55	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.

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Fans for the Atag Q25SC 200N OSS1 (2) all Atag fans →

Part	Item no. / mfr. no.	Price	Stock
Rewind refurbished fan for Atag 24V DC (S44427200)	8930070	€229.79	In stock	View & order
Atag fan assembled 24V DC SHR15/24/35	8135480 Mfr. no. S4442720	€208.99	In stock	View & order

Sensors for the Atag Q25SC 200N OSS1 (3)

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
Atag flue gas sensor	8135310 Mfr. no. S4339510	€65.47	Made-to-order item	View & order

Pressure sensors for the Atag Q25SC 200N OSS1 (1)

Part	Item no. / mfr. no.	Price	Stock
Atag water pressure sensor Huba	8135490 Mfr. no. S4466300	€119.03	In stock	View & order

Pumps for the Atag Q25SC 200N OSS1 (2) all Atag pumps →

Part	Item no. / mfr. no.	Price	Stock
Atag pump upm3 15-75 130 9u 230V solar	8132219 Mfr. no. S4877600	€511.63	In stock	View & order
Atag pump UPMO 20-60 130 9u 230V MOD	8135296 Mfr. no. S5033700	€349.39	In stock	View & order

Gas valves and gas control for the Atag Q25SC 200N OSS1 (2) all Atag gas valves and gas control →

Part	Item no. / mfr. no.	Price	Stock
Atag gas control block type VK8115V	8135130 Mfr. no. S4304700	€201.71	In stock	View & order
Atag venturi SHR24 for OSS1	8139089 Mfr. no. S4318810	€107.07	In stock	View & order

PCBs and controls for the Atag Q25SC 200N OSS1 (1) all Atag PCBs and controls →

Part	Item no. / mfr. no.	Price	Stock
Atag solar module 1418 AM6	8139134 Mfr. no. S4527800	€328.59	Made-to-order item	View & order

Burner control units for the Atag Q25SC 200N OSS1 (1) all Atag burner control units →

Part	Item no. / mfr. no.	Price	Stock
Atag burner control unit 1418 for ZGCHR	8135275 Mfr. no. S4528000	€553.23	In stock	View & order

Ignition and ionisation for the Atag Q25SC 200N OSS1 (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

Expansion vessels for the Atag Q25SC 200N OSS1 (1)

Part	Item no. / mfr. no.	Price	Stock
Atag expansion vessel 18 litre 2,5bar	8139570 Mfr. no. S4528200	€300.51	Made-to-order item	View & order

Siphons and condensate drains for the Atag Q25SC 200N OSS1 (1) all Atag siphons and condensate drains →

Part	Item no. / mfr. no.	Price	Stock
Atag siphon complete SHR	8136240 Mfr. no. S4451610	€74.83	In stock	View & order

Burners for the Atag Q25SC 200N OSS1 (1) all Atag burners →

Part	Item no. / mfr. no.	Price	Stock
Atag burner cassette assy. 25kW for OSS1	8138102 Mfr. no. S4714600	€130.99	In stock	View & order

Displays and controls for the Atag Q25SC 200N OSS1 (1) all Atag displays and controls →

Part	Item no. / mfr. no.	Price	Stock
Atag display PCB MCBA 1415 Q series	8139128 Mfr. no. S4713600	€145.55	In stock	View & order

Filters for the Atag Q25SC 200N OSS1 (1)

Part	Item no. / mfr. no.	Price	Stock
Atag water filter	8136265 Mfr. no. S4317500	€50.91	Made-to-order item	View & order

Valves for the Atag Q25SC 200N OSS1 (9) 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
Atag mixing valve SHR	8131121 Mfr. no. S4312500	€95.63	In stock	View & order
Atag inlet combination 8 bar	8130104 Mfr. no. S4333510	€87.31	In stock	View & order
Atag flow restrictor CVB/H	8136318 Mfr. no. S4343800	€57.15	Made-to-order item	View & order
Atag safety relief valve 6 bar Solar	8139708 Mfr. no. S4530500	€94.59	Made-to-order item	View & order
Atag solar non-return valve 3/4"	8139221 Mfr. no. S4528300	€72.75	Made-to-order item	View & order
Atag thermostatic mixing valve 22 compression	8139572 Mfr. no. S4541000	€145.55	Made-to-order item	View & order
Atag fill and drain valve 1/2"	8132060 Mfr. no. S1002200	€57.15	Made-to-order item	View & order

Electrical parts for the Atag Q25SC 200N OSS1 (2) all Atag electrical parts →

Part	Item no. / mfr. no.	Price	Stock
Atag transformer for MCBA 1415D	8135421 Mfr. no. S4324900	€119.55	In stock	View & order
Atag switch SHR/solar gas combi 230V	8139154 Mfr. no. S4348400	€46.75	Made-to-order item	View & order

Tap parts for the Atag Q25SC 200N OSS1 (1)

Part	Item no. / mfr. no.	Price	Stock
Atag cartridge for three-way valve	8130385 Mfr. no. S4268400	€106.03	In stock	View & order

Cables and wiring harnesses for the Atag Q25SC 200N OSS1 (4) all Atag cables and wiring harnesses →

Part	Item no. / mfr. no.	Price	Stock
Atag spark plug cable	8135070 Mfr. no. S4323800	€55.07	In stock	View & order
Atag earth cable ignition	8139223 Mfr. no. S4723200	€25.95	In stock	View & order
Atag ionisation cable for e.g. Q38C S4323900	8135160 Mfr. no. S4323900	€58.19	Made-to-order item	View & order
Atag wiring harness BE 2 SHR	8135265 Mfr. no. S4398510	€202.75	Made-to-order item	View & order

Gaskets and seals for the Atag Q25SC 200N OSS1 (27) all Atag gaskets and seals →

Part	Item no. / mfr. no.	Price	Stock
Atag O-ring siphon R 46 x 3 mm	8135190 Mfr. no. S4309900	€32.19	Made-to-order item	View & order
Atag O-ring siphon/pipe	8131367 Mfr. no. S4316300	€46.75	Made-to-order item	View & order
Atag O-ring condensate tray/siphon	8131368 Mfr. no. S4316400	€24.91	In stock	View & order
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 ring outlet stub	8139019 Mfr. no. S4472600	€25.95	In stock	View & order
Atag O-ring 2 pcs	8131119 Mfr. no. S4312300	€28.03	In stock	View & order
Atag O-ring 26.7 x 1.78 mm 3 pcs	8136435 Mfr. no. S4259800	€25.95	In stock	View & order
Atag lip seal Ø63mm AMGAS for OSS1/2/3/4	8137005 Mfr. no. S4307900	€23.87	In stock	View & order
Atag pump gasket 3/4" DN20 R38x25x2 mm 2 pcs	8130150 Mfr. no. S1003810	€22.83	In stock	View & order
Atag gasket condensate/air box	8130125 Mfr. no. S4339110	€35.31	In stock	View & order
Atag gasket	8135156 Mfr. no. S4323710	€24.91	In stock	View & order
Atag seal heat exchanger/upper tray 25 kW for OSS1	8138115 Mfr. no. S4709100	€36.35	In stock	View & order
Atag seal lower tray 25kW	8138116 Mfr. no. S4709500	€23.87	In stock	View & order
Atag seal burner bed/upper tray Q25 for OSS1	8138118 Mfr. no. S4717200	€37.39	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 gasket air supply Ø80 mm	8135153 Mfr. no. S4323510	€34.27	In stock	View & order
Atag seal gas valve 3/4"	8131295 Mfr. no. S4340830	€22.83	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 O-ring set 4.8 x 1.8 mm heat exchanger connection	8137056 Mfr. no. S4322320	€23.87	In stock	View & order
Atag sealing ring pump 1" 2 pcs	8139237 Mfr. no. S0009000	€22.83	In stock	View & order
Atag seal 5,5 EPDM	8135255 Mfr. no. S4397000	€49.87	Made-to-order item	View & order
Atag O-ring R 22,5 x 2 mm	8131369 Mfr. no. S4312100	€24.91	In stock	View & order
Atag gasket solar gas water heater	8137117 Mfr. no. S4448700	€50.91	In stock	View & order
Atag seal ionisation/ignition OSS all	8138100 Mfr. no. S4709800	€47.79	In stock	View & order
Atag O-ring 12,42 x 1,78 mm	8131361 Mfr. no. S4342400	€44.67	Made-to-order item	View & order

Pipes, tubes and hoses for the Atag Q25SC 200N OSS1 (18) all Atag pipes, tubes and hoses →

Part	Item no. / mfr. no.	Price	Stock
Atag exhaust pipe 63° assembled SHR15/24	8135460 Mfr. no. S4499400	€73.79	In stock	View & order
Atag swivel nut for filter M35	8136445 Mfr. no. S4259500	€35.31	In stock	View & order
Atag safety relief pipe for OSS1/2/3/4	8137040 Mfr. no. S4467300	€45.71	In stock	View & order
Atag coupling set hot water cylinder	8137096 Mfr. no. S4272100	€54.03	In stock	View & order
Atag concentric connector 80/125 mm	0650048 Mfr. no. AA1CA05U	€86.27	In stock	View & order
Atag flow pipe	8136625 Mfr. no. S4318510	€126.83	Made-to-order item	View & order
Atag drain pipe inlet combination	8139743 Mfr. no. S4494700	€59.23	Made-to-order item	View & order
Atag CH pipe grommet	8139517 Mfr. no. S4310610	€33.23	Made-to-order item	View & order
Atag expansion vessel pipe	8139037 Mfr. no. S4318020	€103.95	Made-to-order item	View & order
Atag gas pipe SHR 15-24	8130487 Mfr. no. S4340410	€66.51	Made-to-order item	View & order
Atag coupling 28x28 long sgc/zgc/qsolar	8139791 Mfr. no. S4477900	€64.43	Made-to-order item	View & order
Atag coupling set gas valve 3/4 SHR	8131321 Mfr. no. S4340900	€60.27	Made-to-order item	View & order
Atag flow pipe	8139565 Mfr. no. S4493900	€119.55	Made-to-order item	View & order
Atag pipe cylinder-three-way valve sgc/ zgc/q-solar for e.g. Q25SC 200N OSS1 S4494100	8139796 Mfr. no. S4494100	€63.39	Made-to-order item	View & order
Atag pipe cylinder-three-way valve sgc/ zgc/q-solar for e.g. Q25SC 200N OSS1 S4494300	8139795 Mfr. no. S4494300	€57.15	Made-to-order item	View & order
Atag pipe cylinder/three-way valve solo	8139539 Mfr. no. S4371800	€97.71	Made-to-order item	View & order
Atag pipe expansion vessel q-solar	8139800 Mfr. no. S4494400	€65.47	Made-to-order item	View & order
Atag return pipe pump/three-way valve installation Combi 15-35/38	8139081 Mfr. no. S4317700	€110.19	Made-to-order item	View & order

Casing and panels for the Atag Q25SC 200N OSS1 (10) all Atag casing and panels →

Part	Item no. / mfr. no.	Price	Stock
Atag top section VC 2010-10	8135170 Mfr. no. S4334910	€148.15	In stock	View & order
Atag cover Control Tower	8135355 Mfr. no. S4322600	€72.75	In stock	View & order
Atag door Q complete	8138114 Mfr. no. S4731400	€91.47	In stock	View & order
Atag cover control tower bottom S-HR	8130031 Mfr. no. S4323000	€34.27	In stock	View & order
Atag hood control tower middle SHR	8130032 Mfr. no. S4322900	€26.99	In stock	View & order
Atag housing control power	8139611 Mfr. no. S4779400	€221.47	In stock	View & order
Atag cover cap CT for switch	8139731 Mfr. no. S4346200	€31.15	Made-to-order item	View & order
Atag cover air supply 80mm SHR	8139210 Mfr. no. S4323310	€31.15	Made-to-order item	View & order
Atag flange plate three-way valve	8139538 Mfr. no. S4371700	€45.71	Made-to-order item	View & order
Atag cover black sgc/zgc/ q-solar 200	8139787 Mfr. no. S4493400	€138.27	Made-to-order item	View & order

Insulation for the Atag Q25SC 200N OSS1 (1)

Part	Item no. / mfr. no.	Price	Stock
Atag insulation set tube plate left and right Q/E for OSS1/2/3/4	8138109 Mfr. no. S4730900	€35.31	In stock	View & order

Fixing material for the Atag Q25SC 200N OSS1 (10) all Atag fixing material →

Part	Item no. / mfr. no.	Price	Stock
Atag closure control tower	8135330 Mfr. no. S4323200	€25.95	In stock	View & order
Atag closure front control tower	8135340 Mfr. no. S4323100	€22.83	In stock	View & order
Atag air box closure per piece	8135350 Mfr. no. S4322500	€23.87	In stock	View & order
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 bolt M3 x 30 (3 pcs)	8139534 Mfr. no. S4345900	€29.07	Made-to-order item	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 service nipple	8138125 Mfr. no. S4317200	€31.15	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 M6 x 20 mm stainless steel hex socket bp 4,2 3 pcs	8139513 Mfr. no. S4307220	€31.15	Made-to-order item	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 Q25SC 200N OSS1 (19)

Part	Item no. / mfr. no.	Price	Stock
Atag sealing cap flue	8137116 Mfr. no. S4339400	€21.79	In stock	View & order
Atag lower tray assembled 25kW	8138106 Mfr. no. S4730600	€112.79	In stock	View & order
Atag three-way valve body VC8010 (O-R)	8135110 Mfr. no. S4308200	€142.43	In stock	View & order
Atag filter cap	8136440 Mfr. no. S4317610	€45.71	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 pipe nipple 1/2"x15 mm coupling gas pipe	8136392 Mfr. no. S4493300	€47.79	In stock	View & order
Atag air box SHR15-24-35	8139070 Mfr. no. S4315800	€174.67	In stock	View & order
Atag control tower rear	8136060 Mfr. no. S4322700	€80.03	In stock	View & order
Atag O-ring 13.94x2.62mm blue 3 pcs	8130065 Mfr. no. S4328720	€43.63	Made-to-order item	View & order
Atag intake piece SHR15/24 for OSS1	8137114 Mfr. no. S4347510	€62.35	Made-to-order item	View & order
Atag upper tray assy OSS1 for OSS1/2/3/4	8139212 Mfr. no. S4735000	€120.59	Made-to-order item	View & order
Atag sleeve PT100 T6 sensor SHRZGC/CBS	8139106 Mfr. no. S4521500	€44.67	Made-to-order item	View & order
Atag condensate drain pipe	8130886 Mfr. no. S4316500	€34.27	In stock	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 inspection hatch ZGCII circle	8139576 Mfr. no. S4557900	€233.95	Made-to-order item	View & order
Atag air box rear	8139079 Mfr. no. S4316100	€124.75	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
Atag tacosetter 2,0- 8,0 l/min	8139558 Mfr. no. S4464100	€136.19	Made-to-order item	View & order

Exploded views of the Atag Q25SC 200N OSS1

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

Fault code on your Atag Q25SC 200N OSS1? 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. All codes explained: Atag fault codes.

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
78	Water pressure sensor out of range or not connected or, if water pressure is OK: pump defective.	Pumps
102	Pressure sensor defective	Sensors

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

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Frequently asked questions

Which parts are available for the Atag Q25SC 200N OSS1?

The catalogue lists 119 original parts for the Atag Q25SC 200N OSS1, including fans, sensors, pressure sensors, pumps. All parts are listed above, grouped by type, with part number and price.

How much does a fan for the Atag Q25SC 200N OSS1 cost?

The fans for this model cost €387.34 incl. VAT. Check the table "Fans" above for the right part number.

Are the parts for the Atag Q25SC 200N OSS1 in stock?

73 of the 119 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 Q25SC 200N OSS1?

Search for the part by part number or use the exploded view of the Atag Q25SC 200N OSS1.

Are these original Atag parts?

Yes. All 119 parts in this list are original manufacturer parts for the Atag Q25SC 200N OSS1, delivered with the correct part number.

How much do parts for the Atag Q25SC 200N OSS1 cost?

Parts for the Atag Q25SC 200N OSS1 range from €17.67 to €744.77 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.