Instanta PRB12A Probe Assembly | Genuine Replacement Spare Part
- SKU
- EDDINSTANTASPARE59
Instanta PRB12A Probe Assembly | Genuine Replacement Spare Part
The Instanta PRB12A Probe Assembly is a genuine replacement water level sensor used in compatible Instanta commercial water boilers and hot water systems.
This probe forms part of the boiler's safety and control system by detecting the water level inside the tank. It helps ensure the appliance only heats when sufficient water is present, preventing dry-boil conditions and protecting key internal components such as the heating element and thermostat system.
If the probe becomes scaled, damaged, or faulty, the boiler may experience filling errors, heating issues, or safety shutdowns. Replacing it with a genuine Instanta part restores accurate water level detection and reliable system operation.
The PRB12A is used across a range of Instanta SureFlow and commercial boiler models, where it plays an essential role in maintaining safe and consistent hot water delivery.
Manufactured to OEM specifications, this probe assembly ensures correct fitment, dependable sensing performance, and long service life in demanding environments such as catering kitchens, offices, schools, healthcare facilities, and hospitality venues.
Key Features & Benefits
Manufacturer part number: PRB12A
Water level probe assembly
Detects internal boiler water level
Helps prevent dry-boil conditions
Protects heating element and system components
Designed for compatible Instanta water boilers
OEM specification for accurate fit and performance
Suitable for commercial hot water systems
Ideal for servicing and maintenance applications
| MPN | PRB12A |
|---|---|
| Product Code | EDDINSTANTASPARE59 |
| Compatible With: Product Code (SKU) | 1500POU; CTS 5/11/13/17; CTSP 10/11/17/19/27; CTSV 36/50/135; WMS 6 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Instanta |
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.
Instanta PRB12A Probe Assembly | Genuine Replacement Spare Part
The Instanta PRB12A Probe Assembly is a genuine replacement water level sensor used in compatible Instanta commercial water boilers and hot water systems.
This probe forms part of the boiler's safety and control system by detecting the water level inside the tank. It helps ensure the appliance only heats when sufficient water is present, preventing dry-boil conditions and protecting key internal components such as the heating element and thermostat system.
If the probe becomes scaled, damaged, or faulty, the boiler may experience filling errors, heating issues, or safety shutdowns. Replacing it with a genuine Instanta part restores accurate water level detection and reliable system operation.
The PRB12A is used across a range of Instanta SureFlow and commercial boiler models, where it plays an essential role in maintaining safe and consistent hot water delivery.
Manufactured to OEM specifications, this probe assembly ensures correct fitment, dependable sensing performance, and long service life in demanding environments such as catering kitchens, offices, schools, healthcare facilities, and hospitality venues.
Key Features & Benefits
Manufacturer part number: PRB12A
Water level probe assembly
Detects internal boiler water level
Helps prevent dry-boil conditions
Protects heating element and system components
Designed for compatible Instanta water boilers
OEM specification for accurate fit and performance
Suitable for commercial hot water systems
Ideal for servicing and maintenance applications
| MPN | PRB12A |
|---|---|
| Product Code | EDDINSTANTASPARE59 |
| Compatible With: Product Code (SKU) | 1500POU; CTS 5/11/13/17; CTSP 10/11/17/19/27; CTSV 36/50/135; WMS 6 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Instanta |
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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