Andrews
Andrews Siemens Module AGU2.5
Siemens AGU2.5 control module supplied for Andrews water heaters, listed under part number G173.
At a glance
- Also known as 1823864
£921.58
£767.98 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 Siemens AGU2.5 is a control module used on Andrews water heating appliances. It manages the burner control sequence and associated safety functions within the appliance's control system. This module is listed under Andrews part number G173.
Signs this part needs replacing
- The appliance fails to complete its ignition sequence and locks out.
- The burner starts and then shuts down shortly after, repeatedly.
- Fault or lockout indication appears on the appliance controls with no other cause found.
- The module shows signs of heat damage, moisture ingress or corrosion at its terminals.
- Intermittent operation that cannot be traced to gas, ignition or sensor faults.
Before you order
- Confirm the existing module is marked AGU2.5 before ordering.
- Check the appliance data plate and model details against the manufacturer's parts list.
- Inspect wiring, connectors and earth connections before fitting a replacement module.
- Verify that no other fault — ignition, sensor or gas supply — is causing the lockout.
Compliance
| Alternative numbers | 1823864 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ANDREWS WATER HEATERS ANDREWS HOT WATER SPARES | — | — | — |
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 documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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