Sime Friendly Format 80 80E 100E Boiler Ignition Control Box PCB 6210203

Product Overview

The Sime Friendly Format Boiler Ignition Control Box (Part Number: 6210203) is a replacement electronic ignition control component designed for selected Sime heating systems.

Part number 6210203 is identified in Sime's technical documentation as the SIT 503 Ignition Control Box, forming part of the boiler's electronic ignition and burner control system.

The ignition control box works with the appliance's ignition and safety components to support the burner ignition sequence and controlled boiler operation.

Correct operation of the ignition control system is important for reliable burner ignition and appliance safety.

ℹ️ Product Condition Options:

This part may be available in New or Refurbished condition. Please select your desired option from the dropdown menu above. Refurbished components should be professionally inspected and tested to confirm correct operation before installation.

Technical Insight & Common Failure Symptoms

The ignition control box forms part of the boiler's electronic burner control system. It works alongside the ignition electrodes, electrical controls and associated safety components during the boiler's ignition sequence.

A fault affecting the ignition control box or its electrical connections may prevent the boiler from completing its normal ignition sequence.

Possible symptoms that may indicate an ignition control box or associated component problem include:

• Boiler failing to ignite or fire correctly.

• Intermittent ignition operation.

• Burner failing to establish correctly.

• Boiler entering an ignition-related safety lockout.

• Ignition sequence failing to complete.

• Electrical or control-related faults affecting burner operation.

• Boiler failing to respond correctly to a demand for heat.

These symptoms do not necessarily confirm a faulty ignition control box, as similar problems may result from ignition electrodes, gas supply issues, electrical connections, boiler controls or other combustion components. Correct professional diagnosis should be carried out before replacement.

Compatibility

This part (MPN: 6210203) is associated with selected Sime Friendly Format 80, 80E and 100E boiler systems.

Please verify the exact boiler model, original part number, ignition control box designation and electrical specifications against the manufacturer's technical documentation before ordering to ensure correct fitment.

Safety Advice

Boiler ignition control boxes are safety-critical components within the appliance's ignition and combustion system. Inspection, removal and installation must only be carried out by a Gas Safe registered engineer who is suitably qualified for the appliance and work being undertaken.

Always isolate the appliance's electrical supply before carrying out any work and follow the manufacturer's installation and servicing instructions. Appropriate ignition sequence, burner operation, combustion and safety checks must be completed before the boiler is returned to service.