Sime
Sime Control Box 6210204
Control box for Sime Format 20 and Format 25 boilers using the SIT 0.503.101 control assembly.
At a glance
- Also known as 8921786
£248.21
£206.84 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 Sime control box, part number 6210204, is built around the SIT 0.503.101 control assembly. It manages the ignition and burner sequence on Sime Format series appliances, handling the electrical interlock between the gas valve, ignition and flame sensing circuits. The unit is listed by the manufacturer for G30/G31 applications.
Signs this part needs replacing
- The boiler fails to ignite and repeatedly goes to lockout
- No response from the appliance when a demand is applied at the controls or room thermostat
- Ignition spark is absent or the burner fires but cuts out shortly afterwards
- The control box shows signs of heat damage, scorching or a burnt smell at the terminals
- Intermittent operation, with the boiler running correctly on some cycles and failing on others
Before you order
- Confirm the appliance model and variant against the fit list above
- Check the existing control box part number and the SIT reference on the unit being replaced
- Verify the gas type of the installation, as this control box is listed for G30/G31 applications
- Isolate the electrical supply and gas before removing the existing control box, and check the wiring harness and plug connections for damage
Compliance
| Alternative numbers | 8921786 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME FORMAT 20 CE IONO MET - 8092900 | — | — | — | |
| SIME FORMAT 25 OF GPL - 8092918 | — | — | — | |
| SIME FORMAT 25 OF MET - 8092906 | — | — | — |
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.
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