A.O. Smith UB 140 spare parts
In brief
Instalpunt supplies 19 original parts for the A.O. Smith UB 140, including fans, temperature sensors and NTC sensors, heat exchangers. Order online.
- 19Spare parts
- 3In stock
- €25.49From
- 9Types
- availableExploded view
Looking for parts for the A.O. Smith UB 140 (hot water cylinder)? Below are all 19 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
- Temperature sensors and NTC sensors 1
- Heat exchangers 1
- Ignition and ionisation 4
- Siphons and condensate drains 1
- Valves 1
- Conversion kits 1
- Gaskets and seals 8
- Insulation 1
Fans for the A.O. Smith UB 140 (1) all A.O. Smith fans →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| A.O. Smith fan 230v | 8750073 Mfr. no. 0310517(S) | €792.95 | Made-to-order item | View & order |
Temperature sensors and NTC sensors for the A.O. Smith UB 140 (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| A.O. Smith NTC sensor T2/T3/T8/T9 0310404(S) | 8751237 Mfr. no. 0310404(S) | €70.95 | Made-to-order item | View & order |
Heat exchangers for the A.O. Smith UB 140 (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| A.O. Smith heat exchanger HEX 4 | 8751367 Mfr. no. 0310814(S) | €3,032.95 | Made-to-order item | View & order |
Ignition and ionisation for the A.O. Smith UB 140 (4) all A.O. Smith ignition and ionisation →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| A.O. Smith ignition electrode + gasket | 8750923 Mfr. no. 0310490(S) | €88.95 | In stock | View & order |
| A.O. Smith ignition electrode | 8750927 Mfr. no. 0310491(S) | €41.95 | Made-to-order item | View & order |
| A.O. Smith ignition transformer 0310523(S) | 8751238 Mfr. no. 0310523(S) | €129.95 | Made-to-order item | View & order |
| A.O. Smith ignition cables | 8750924 Mfr. no. 0310516(S) | €119.95 | Made-to-order item | View & order |
Siphons and condensate drains for the A.O. Smith UB 140 (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| A.O. Smith condensate tray complete HEX 2 UB | 8751365 Mfr. no. 0310521(S) | €266.95 | Made-to-order item | View & order |
Valves for the A.O. Smith UB 140 (1) all A.O. Smith valves →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| A.O. Smith non return valve 0310995(S) | 8751394 Mfr. no. 0310995(S) | €133.95 | Made-to-order item | View & order |
Conversion kits for the A.O. Smith UB 140 (1) all A.O. Smith conversion kits →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| A.O. Smith control unit BIC | 8751366 Mfr. no. 0310531(S) | €1,132.95 | Made-to-order item | View & order |
Gaskets and seals for the A.O. Smith UB 140 (8) all A.O. Smith gaskets and seals →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| A.O. Smith gasket heat exchanger hood EB50 | 8750938 Mfr. no. 0310500(S) | €74.95 | In stock | View & order |
| A.O. Smith condensate tray gasket EB50 | 8750941 Mfr. no. 0310502(S) | €53.95 | In stock | View & order |
| A.O. Smith gasket for e.g. UB 110 0310489(S) | 8750926 Mfr. no. 0310489(S) | €86.95 | Made-to-order item | View & order |
| A.O. Smith gasket burner cover heat exchanger EB50 0310498(S | 8750943 Mfr. no. 0310498(S) | €104.95 | Made-to-order item | View & order |
| A.O. Smith flue gas gasket 110 ub (3x)0310525(S) | 8751239 Mfr. no. 0310525(S) | €92.95 | Made-to-order item | View & order |
| A.O. Smith flue gas gasket 80 ub (3x)0310528(S) | 8751240 Mfr. no. 0310528(S) | €87.95 | Made-to-order item | View & order |
| A.O. Smith flue gas gasket 100 ub (3x)0310529(S) | 8751241 Mfr. no. 0310529(S) | €86.95 | Made-to-order item | View & order |
| A.O. Smith O-ring diameter 0310831(S) 14.30x2.40 gas pipe (3 | 8751393 Mfr. no. 0310831(S) | €66.95 | Made-to-order item | View & order |
Insulation for the A.O. Smith UB 140 (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| A.O. Smith insulation shields 0310505(S) | 8751392 Mfr. no. 0310505(S) | €91.95 | Made-to-order item | View & order |
Exploded views of the A.O. Smith UB 140
Click an exploded view to enlarge it. The position numbers are shown next to each part.
Fault code on your A.O. Smith UB 140? 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 |
|---|---|---|
| F01 | Control fault: Live and neutral were swapped during connection | Ignition and ionisation |
| F02 | Fan fault: damaged or loose wiring. | Fans |
| F03 | Air pressure switch fault: the non-return valve between the fan and the burner is stuck. | Fans |
| F03 | Insufficient pressure difference at the air pressure switch, caused by: - the air supply and flue system - malfunctioning condensate drain - fouled burner - blocked heat exchanger | Heat exchangers |
| F04 | Three unsuccessful ignition attempts: fault in the glow igniter circuit | Ignition and ionisation |
| F06 | Contact with a metal surface due to a broken cable or deformed ionisation pin. | Ignition and ionisation |
For guidance only: the same code can have a different cause depending on the situation.
Other A.O. Smith hot water cylinders
- A.O. Smith ADM(C) 115 17
- A.O. Smith ADM(C) 135 17
- A.O. Smith ADM(C) 40 21
- A.O. Smith ADM(C) 50 21
- A.O. Smith ADM(C) 60 16
- A.O. Smith ADM(C) 80 21
- A.O. Smith ADM(C) 90 20
- A.O. Smith ADMR 115 19
- A.O. Smith ADMR 135 19
- A.O. Smith ADMR 40 32
- A.O. Smith ADMR 50 24
- A.O. Smith ADMR 60 22
Frequently asked questions
Which parts are available for the A.O. Smith UB 140?
The catalogue lists 19 original parts for the A.O. Smith UB 140, including fans, temperature sensors and NTC sensors, heat exchangers, ignition and ionisation. All parts are listed above, grouped by type, with part number and price.
How much does a fan for the A.O. Smith UB 140 cost?
The fans for this model cost €933.06 incl. VAT. Check the table "Fans" above for the right part number.
Are the parts for the A.O. Smith UB 140 in stock?
3 of the 19 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 UB 140?
Search for the part by part number or use the exploded view of the A.O. Smith UB 140.
Are these original A.O. Smith parts?
Yes. All 19 parts in this list are original manufacturer parts for the A.O. Smith UB 140, supplied through the official technical wholesale channel and with the correct part number.
How much do parts for the A.O. Smith UB 140 cost?
Parts for the A.O. Smith UB 140 range from €25.49 to €3,537.51 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.