Potterton
Potterton 404513 Baxi Thermistor
Baxi thermistor POTTERTON404513 (alternative number 404513) for Potterton and Baxi heating appliances, sensing temperature for the control board.
At a glance
- Part type: Thermistor
- Appliance family: Potterton and Baxi heating appliances
- Also known as 1122520, POTTERTON404513
£31.20
£26.00 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Baxi thermistor, part number POTTERTON404513, is a temperature sensing component used in Potterton and Baxi heating appliances. It reads the temperature of the water or flow path it is mounted on and passes that signal to the appliance control board, which uses it to regulate output and enforce its safety limits. The same component is also listed under the alternative number 404513.
Thermistors of this type are a service item rather than a wear part, but they can drift out of tolerance or fail outright over the life of an appliance, which is when the boiler's temperature control starts to behave unpredictably.
Signs this part needs replacing
- The boiler locks out or shuts down shortly after firing
- Flow temperature readings that disagree with the measured pipe temperature
- Hot water temperature that fluctuates or runs erratically
- Fault codes relating to the temperature sensor or thermistor circuit
- Heating that cycles on and off more frequently than expected
Before you order
- Note the model and GC number from the appliance data badge and confirm this thermistor is the correct item for that appliance.
- Compare the number on the existing component against POTTERTON404513 and 404513 before removing it.
Mechanical
| Part type | Thermistor |
|---|
Compliance
| Manufacturer part number (MPN) | POTTERTON404513 |
|---|---|
| GC number | 378-868 |
| Commodity code | 8533 40 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 7625869593604, POTTERTON404513, POTTERTON404513, POTTERTON404513, 256191051515, 1122520 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON ENVOY 30 | 41-607-60 | 41-607-60 | — | — |
| POTTERTON ENVOY 40 | 41-607-61 | 41-607-61 | — | — |
| POTTERTON ENVOY 50 | 41-607-62 | 41-607-62 | — | — |
| POTTERTON ENVOY 60 | 41-607-63 | 41-607-63 | — | — |
| POTTERTON ENVOY 80 | 41-607-64 | 41-607-64 | — | — |
| POTTERTON ENVOY FLOWSURE & FLOWSURE+ | 41-607-89 | 41-607-89 | — | — |
| POTTERTON ENVOY SYSTEM 30 | 41-607-84 | 41-607-84 | — | — |
| POTTERTON ENVOY SYSTEM 40 | 41-607-85 | 41-607-85 | — | — |
| POTTERTON ENVOY SYSTEM 50 | 41-607-86 | 41-607-86 | — | — |
| POTTERTON ENVOY SYSTEM 60 | 41-607-87 | 41-607-87 | — | — |
Showing 10 of 11 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
POTTERTON appliance manual — ENVOY 30 (GC 41-607-60), ENVOY 40 (GC 41-607-61), ENVOY 50 (GC 41-607-62), ENVOY 60 (GC 41-607-63), ENVOY 80 (GC 41-607-64)
manualmanualPOTTERTON appliance manual — ENVOY FLOWSURE & FLOWSURE+ (GC 41-607-89)
manualmanualPOTTERTON appliance manual — ENVOY SYSTEM 30 (GC 41-607-84), ENVOY SYSTEM 40 (GC 41-607-85), ENVOY SYSTEM 50 (GC 41-607-86), ENVOY SYSTEM 60 (GC 41-607-87), ENVOY SYSTEM 80 (GC 41-607-88)
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