Sime
Sime Relay Omron G2R-1-T 6190403
The Sime 6190403 is an Omron G2R-1-T relay used in Sime Ecomfort and Format gas boilers.
At a glance
- Also known as 2042854
Showing prices
£33.28
£27.73 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
The Omron G2R-1-T is a relay used in Sime gas boilers. It is an electromechanical switch that controls electrical circuits on the appliance's control board. This relay is fitted to several Sime Ecomfort and Format models.
Signs this part needs replacing
- Boiler fails to ignite or fires intermittently.
- No response from pump or fan when there is a demand for heat.
- Audible clicking from the control board but no subsequent action.
- Error codes indicating a control circuit fault.
- Visible damage or discolouration on the relay.
Before you order
- Confirm your boiler model matches one of the appliances listed in the Fits section.
- Check the part number on the existing relay to ensure it is 6190403.
- Inspect the control board for other damage that may have caused the relay to fail.
- Isolate the appliance from the electrical supply before fitting.
Compliance
| Alternative numbers | 2042854 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME ECOMFORT PLUS 25HE SYSTEM - 8104013 | 41-283-10 | 41-283-10 | — | — |
| SIME ECOMFORT SYSTEM 25HE | 41-283-04 | 41-283-04 | — | — |
| SIME FORMAT SYSTEM 25 HE - 8101250 | 41-719-17 | 41-719-17 | — | — |
| SIME SIME ECOMFORT PLUS 25HE SYSTEM | — | — | — | |
| SIME SIME ECOMFORT SYSTEM 25HE | — | — | — | |
| SIME SIME FORMAT SYSTEM 25 HE | — | — | — |
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.
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