
Accurate temperature sensing is essential for protecting a boiler during abnormal operating conditions, such as restricted circulation caused by airlocks, closed valves, or pump-related issues. The no-flow thermistor allows the control system to detect rapid temperature rises when water movement is limited, enabling the boiler to reduce output or shut down if necessary. This protective function helps safeguard critical components such as the heat exchanger and pump, reducing the risk of thermal stress, damage, or premature wear. Over time, thermistors may degrade due to prolonged exposure to heat, scale build-up, or electrical fatigue, which can result in inaccurate temperature readings or intermittent signals. Symptoms of a failing no-flow thermistor may include overheating faults, unexpected boiler shutdowns, or error codes related to temperature sensing. Replacing a worn or faulty thermistor helps restore accurate temperature monitoring, improves system protection, and supports reliable boiler operation. Because this component influences safety-related control decisions, installation and testing should always be carried out by a qualified heating engineer, ensuring correct positioning, secure connections, and proper system response.
We ensure you are receiving a genuine part directly from Zip, guaranteeing peace of mind and reliable functionality for your system. Zip provide a 1 year warranty on all genuine spare parts. Electrical Deals Direct now sell a wide range of spare parts. If you cannot see the item you require on our website, please call on 01934 253600 for more information.
| MPN | 90045 |
|---|---|
| Product Code | EDDZIPSPARE037 |
| Compatible With: Product Code (SKU) | EconoBoil 3L G2 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Zip Accessory |
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.
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.
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.
Accurate temperature sensing is essential for protecting a boiler during abnormal operating conditions, such as restricted circulation caused by airlocks, closed valves, or pump-related issues. The no-flow thermistor allows the control system to detect rapid temperature rises when water movement is limited, enabling the boiler to reduce output or shut down if necessary. This protective function helps safeguard critical components such as the heat exchanger and pump, reducing the risk of thermal stress, damage, or premature wear. Over time, thermistors may degrade due to prolonged exposure to heat, scale build-up, or electrical fatigue, which can result in inaccurate temperature readings or intermittent signals. Symptoms of a failing no-flow thermistor may include overheating faults, unexpected boiler shutdowns, or error codes related to temperature sensing. Replacing a worn or faulty thermistor helps restore accurate temperature monitoring, improves system protection, and supports reliable boiler operation. Because this component influences safety-related control decisions, installation and testing should always be carried out by a qualified heating engineer, ensuring correct positioning, secure connections, and proper system response.
We ensure you are receiving a genuine part directly from Zip, guaranteeing peace of mind and reliable functionality for your system. Zip provide a 1 year warranty on all genuine spare parts. Electrical Deals Direct now sell a wide range of spare parts. If you cannot see the item you require on our website, please call on 01934 253600 for more information.
| MPN | 90045 |
|---|---|
| Product Code | EDDZIPSPARE037 |
| Compatible With: Product Code (SKU) | EconoBoil 3L G2 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Zip Accessory |
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.
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.
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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