Andrews
Andrews control thermostat 'E' C539
Genuine Andrews Water Heaters control thermostat for the HiFlo range of natural gas storage water heaters.
At a glance
- Part type: control thermostat ('E')
- Also known as 1820090
- Have this fitted by a Gas Safe registered engineer
Showing prices
£547.64
£456.37 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
This is Andrews Water Heaters' control thermostat 'E'. It monitors and controls the temperature within the appliance, starting or stopping the heating process to keep the water within its set temperature range.
Signs this part needs replacing
- Water temperature is inconsistent, too hot or too cold
- Appliance fails to reach temperature or overheats
- Appliance locks out on a temperature-related fault
- No response when the temperature setting is adjusted
Before you order
- Match the part number printed on your existing thermostat before ordering
- Isolate electrical power and gas supply before removal
- Have this fitted by a Gas Safe registered engineer
Compliance
| Barcode / EAN | 5039192353903 |
|---|---|
| Alternative numbers | 1820090 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ANDREWS WATER HEATERS ANDREWS HOT WATER SPARES | — | — | — | |
| ANDREWS WATER HEATERS HI FLO L54/399 | — | — | — | |
| ANDREWS WATER HEATERS HI FLO L62/309 | — | — | — | |
| ANDREWS WATER HEATERS HI FLO L65/169 | — | — | — | |
| ANDREWS WATER HEATERS HI FLO L81/251 | — | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.