Andrews control thermostat C512AWH

Genuine Andrews control thermostat for the HiFlo 32/143 and 33/136 gas-fired storage water heaters.

At a glance

Also known as 1820520
Fitting should be carried out by a Gas Safe registered engineer

Manufacturer part no.

C512AWH

Showing prices

£660.35

£550.29 ex. VAT · VAT at 20%

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 team Send a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

A genuine Andrews control thermostat, part number C512AWH, used to set and regulate the stored water temperature on compatible Andrews gas-fired storage water heaters.

Signs this part needs replacing

Stored water runs too hot or too cold regardless of the dial setting
Thermostat dial feels loose, stuck, or doesn't click at the set point
Appliance short-cycles on and off
Water temperature fluctuates with no change to the setting

Before you order

Match the part number on your existing thermostat before ordering
Isolate the electrical and gas supply before removing the old thermostat
Fitting should be carried out by a Gas Safe registered engineer

Can't find yours? Call 01302 279234

Make	Model / assembly	Reference	Years	Fitment
ANDREWS WATER HEATERS ANDREWS HOT WATER SPARES	—		—	—
ANDREWS WATER HEATERS HI FLO 33/136	—		—	—

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.

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Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.

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Barcode / EAN	5039177517504
Alternative numbers	1820520