Saunier Duval 0020195525 Ignition and Sensing Electrode | Genuine Replacement Spare Part
- SKU
- EDDSAUNIER01
Our Expert's Opinion
"Fits Micra, Thema Condens, Themafast, Thesi & more condensing boiler ranges. Gas Safe required."Saunier Duval 0020195525 Ignition and Sensing Electrode | Genuine Replacement Spare Part
The Saunier Duval 0020195525 is a genuine combined ignition and ionisation sensing electrode, designed for use across a wide range of Saunier Duval condensing boilers, including the Micra, Thema Condens, Themafast Condens, Thesi Condensing, and Spazio ranges. This single electrode handles both functions in the combustion cycle - generating the high-voltage spark that lights the burner and monitoring the ionisation signal that confirms a stable flame is present. Both roles are safety-critical and must be performed reliably every time the boiler fires.
When the boiler receives a heat or hot water demand, the ignition module energises the electrode, which produces a spark across the gap between its tip and the burner body. This spark ignites the gas and air mixture. Once the flame is established, the electrode passes a minute ionisation current back through the flame to the ignition module, which uses this signal to verify that combustion has been safely established. If the signal is absent or falls below the threshold the module expects, the gas valve closes immediately, and the boiler locks out - preventing unlit gas from continuing to flow. This is a fundamental safety mechanism, and the electrode is at the centre of it.
A combined electrode that has worn, cracked, or accumulated carbon deposits on its tip is one of the most common causes of ignition-related fault codes and lockouts on Saunier Duval condensing boilers. Because the same component handles both sparking and sensing, even partial degradation of the electrode affects both functions simultaneously - a weakened spark reduces ignition reliability, while a compromised tip surface reduces the strength of the ionisation signal the module receives. In many cases, engineers attending an ignition lockout will find the electrode at fault before any other component in the ignition circuit.
Key Features:
Part Number: 0020195525 (also listed as 20195525)
Type: Combined ignition and ionisation sensing electrode
Function: Spark generation for ignition and flame ionisation sensing
Genuine Saunier Duval spare part - manufactured to full OEM specification
Broad compatibility - suits multiple Saunier Duval condensing boiler ranges
Must be fitted by a Gas Safe registered engineer
Compatible Boilers include:
Saunier Duval Micra Condensing 25, 30
Saunier Duval Micra 3 Condensing 12 SB, 25, 26 SB, 30 SB
Saunier Duval Micra 4 Condensing 25, 30, 12 SB
Saunier Duval Thema Condens F 24 E, F 25, F 30 E, F 30
Saunier Duval Thema 3 Condensing 26, 31
Saunier Duval Themafast Condens F 25, F 30, F 24 ME, F 30 ME
Saunier Duval Themafast 4 Condensing 25, 26, 30, 35
Saunier Duval Thesi Condensing, Thesi 3 Condensing
Saunier Duval Spazio 4 Condensing 26 SB, 26
Saunier Duval Isotwin Condens F 30, F 35
Saunier Duval Eura 3 Condensing 30, 35
Saunier Duval provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | 0020195525 |
|---|---|
| Product Code | EDDSAUNIER01 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Saunier Duval |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
Saunier Duval 0020195525 Ignition and Sensing Electrode | Genuine Replacement Spare Part
The Saunier Duval 0020195525 is a genuine combined ignition and ionisation sensing electrode, designed for use across a wide range of Saunier Duval condensing boilers, including the Micra, Thema Condens, Themafast Condens, Thesi Condensing, and Spazio ranges. This single electrode handles both functions in the combustion cycle - generating the high-voltage spark that lights the burner and monitoring the ionisation signal that confirms a stable flame is present. Both roles are safety-critical and must be performed reliably every time the boiler fires.
When the boiler receives a heat or hot water demand, the ignition module energises the electrode, which produces a spark across the gap between its tip and the burner body. This spark ignites the gas and air mixture. Once the flame is established, the electrode passes a minute ionisation current back through the flame to the ignition module, which uses this signal to verify that combustion has been safely established. If the signal is absent or falls below the threshold the module expects, the gas valve closes immediately, and the boiler locks out - preventing unlit gas from continuing to flow. This is a fundamental safety mechanism, and the electrode is at the centre of it.
A combined electrode that has worn, cracked, or accumulated carbon deposits on its tip is one of the most common causes of ignition-related fault codes and lockouts on Saunier Duval condensing boilers. Because the same component handles both sparking and sensing, even partial degradation of the electrode affects both functions simultaneously - a weakened spark reduces ignition reliability, while a compromised tip surface reduces the strength of the ionisation signal the module receives. In many cases, engineers attending an ignition lockout will find the electrode at fault before any other component in the ignition circuit.
Key Features:
Part Number: 0020195525 (also listed as 20195525)
Type: Combined ignition and ionisation sensing electrode
Function: Spark generation for ignition and flame ionisation sensing
Genuine Saunier Duval spare part - manufactured to full OEM specification
Broad compatibility - suits multiple Saunier Duval condensing boiler ranges
Must be fitted by a Gas Safe registered engineer
Compatible Boilers include:
Saunier Duval Micra Condensing 25, 30
Saunier Duval Micra 3 Condensing 12 SB, 25, 26 SB, 30 SB
Saunier Duval Micra 4 Condensing 25, 30, 12 SB
Saunier Duval Thema Condens F 24 E, F 25, F 30 E, F 30
Saunier Duval Thema 3 Condensing 26, 31
Saunier Duval Themafast Condens F 25, F 30, F 24 ME, F 30 ME
Saunier Duval Themafast 4 Condensing 25, 26, 30, 35
Saunier Duval Thesi Condensing, Thesi 3 Condensing
Saunier Duval Spazio 4 Condensing 26 SB, 26
Saunier Duval Isotwin Condens F 30, F 35
Saunier Duval Eura 3 Condensing 30, 35
Saunier Duval provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | 0020195525 |
|---|---|
| Product Code | EDDSAUNIER01 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Saunier Duval |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
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