A.O. Smith ADMR 90 spare parts

In brief

Instalpunt supplies 22 original parts for the A.O. Smith ADMR 90, including sensors, gas valves and gas control, burner control units. Order online.

22Spare parts
13In stock
€33.98From
11Types
availableExploded view

Looking for parts for the A.O. Smith ADMR 90 (hot water cylinder)? Below are all 22 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 A.O. Smith ADMR 90

Part	From	Delivery
Ignition part A.O. Smith ionisation pin ADMR	€74.83	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 A.O. Smith burner control unit for e.g. ADM(C) 50 0303497(S)	€366.03	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
Gas valves and gas control 1
Burner control units 1
Ignition and ionisation 5
Thermostats and controls 2
Displays and controls 1
Maintenance and service kits 1
Valves 2
Anodes 1
Gaskets and seals 2
Pipes, tubes and hoses 1
Other parts 3

Sensors for the A.O. Smith ADMR 90 (2) all A.O. Smith sensors →

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith sensor NTC assy	8750339 Mfr. no. 0304470(S)	€58.19	In stock	View & order
A.O. Smith temperature sensor for e.g. ADMR 115 0300222001(S)	8750192 Mfr. no. 0300222001(S)	€109.15	Made-to-order item	View & order

Gas valves and gas control for the A.O. Smith ADMR 90 (1) all A.O. Smith gas valves and gas control →

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith gas valve	8750266 Mfr. no. 0300903(S)	€409.71	In stock	View & order

Burner control units for the A.O. Smith ADMR 90 (1)

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith burner control unit for e.g. ADM(C) 50 0303497(S)	8750204 Mfr. no. 0303497(S)	€366.03	In stock	View & order

Ignition and ionisation for the A.O. Smith ADMR 90 (5) all A.O. Smith ignition and ionisation →

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith glow plug for e.g. ADM(C) 50 0303493(S)	8750200 Mfr. no. 0303493(S)	€116.43	In stock	View & order
A.O. Smith ionisation pin ADMR	8750324 Mfr. no. 0305407(S)	€74.83	In stock	View & order
A.O. Smith glow plug after 01-06-05	8750329 Mfr. no. 0305413(S)	€128.91	In stock	View & order
A.O. Smith glow plug for e.g. ADMR 115 0307310(S)	8750381 Mfr. no. 0307310(S)	€184.03	In stock	View & order
A.O. Smith glow plug kit	8750428 Mfr. no. 0303045(S)	€134.11	Made-to-order item	View & order

Thermostats and controls for the A.O. Smith ADMR 90 (2) all A.O. Smith thermostats and controls →

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith safety switch 93°C	8750006 Mfr. no. 0300674(S)	€127.87	In stock	View & order
A.O. Smith TTB thermostat	8750215 Mfr. no. 0303318(S)	€142.43	Made-to-order item	View & order

Displays and controls for the A.O. Smith ADMR 90 (1) all A.O. Smith displays and controls →

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith display PCB	8750167 Mfr. no. 0303507(S)	€56.11	Made-to-order item	View & order

Maintenance and service kits for the A.O. Smith ADMR 90 (1)

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith BT-tronic service kit ADM(R) 40 to 115	8750503 Mfr. no. 0309752(S)	€713.39	Made-to-order item	View & order

Valves for the A.O. Smith ADMR 90 (2) all A.O. Smith valves →

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith flue damper set ADMC/R 90135	8750900 Mfr. no. 0306651(S)	€1,103.39	Made-to-order item	View & order
A.O. Smith flue damper after 2002	8750298 Mfr. no. 0306653(S)	€1,103.39	Made-to-order item	View & order

Anodes for the A.O. Smith ADMR 90 (1) all A.O. Smith anodes →

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith anode 3/4"	8750125 Mfr. no. 0183463039(S)	€49.87	In stock	View & order

Gaskets and seals for the A.O. Smith ADMR 90 (2) all A.O. Smith gaskets and seals →

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith O-ring manhole R126x14	8750145 Mfr. no. 0304741(S)	€38.43	In stock	View & order
A.O. Smith service gasket manhole	8750155 Mfr. no. 0301125(S)	€57.15	In stock	View & order

Pipes, tubes and hoses for the A.O. Smith ADMR 90 (1) all A.O. Smith pipes, tubes and hoses →

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith dip tube 1/2	8750216 Mfr. no. 0301020(S)	€58.19	Made-to-order item	View & order

Other parts for the A.O. Smith ADMR 90 (3)

Part	Item no. / mfr. no.	Price	Stock
A.O. Smith U-profile rgv hood	8750271 Mfr. no. 0305098(S)	€49.87	In stock	View & order
A.O. Smith thermocontrol 2 after/2006 ADMR	8750420 Mfr. no. 0307951(S)	€674.91	In stock	View & order
A.O. Smith thermocontrol 1 2003/2006	8750419 Mfr. no. 0307955(S)	€1,220.91	Made-to-order item	View & order

Fault code on your A.O. Smith ADMR 90? This is the part type involved

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

Code	What is going on	Part type
0A5	The thermal fuse has interrupted the control circuit.	Thermostats and controls
045	Damaged wiring and/or defective sensor.	Sensors
78A	Bottom sensor fault	Sensors
502	Sensor fault: Sensor is not (correctly) connected.	Sensors
503	Sensor fault: damaged wiring and/or defective sensor.	Sensors
504	Sensor fault: damaged wiring and/or defective sensor.	Sensors

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

Other A.O. Smith hot water cylinders

← All A.O. Smith parts

Frequently asked questions

Which parts are available for the A.O. Smith ADMR 90?

The catalogue lists 22 original parts for the A.O. Smith ADMR 90, including sensors, gas valves and gas control, burner control units, ignition and ionisation. All parts are listed above, grouped by type, with part number and price.

How much does a sensor for the A.O. Smith ADMR 90 cost?

The sensors for this model cost between €59.80 and €96.49 incl. VAT. Check the table "Sensors" above for the right part number.

Are the parts for the A.O. Smith ADMR 90 in stock?

13 of the 22 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 A.O. Smith ADMR 90?

Search for the part by part number or use the exploded view of the A.O. Smith ADMR 90.

Are these original A.O. Smith parts?

Yes. All 22 parts in this list are original manufacturer parts for the A.O. Smith ADMR 90, delivered with the correct part number.

How much do parts for the A.O. Smith ADMR 90 cost?

Parts for the A.O. Smith ADMR 90 range from €33.98 to €1,424.31 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.