Sime Gas Valve Honeywell VR4605CA 6089701

The Sime 6089701 is a gas valve assembly that uses the Honeywell VR4605CA valve body. It is a safety-critical component in Sime gas appliances, responsible for controlling the supply of gas to the burner. The valve opens when the appliance calls for heat and closes when demand ends or a fault is detected, preventing unburned gas from entering the combustion chamber. This replacement valve is supplied as a complete unit, ready to fit to compatible Sime models. The Honeywell VR4605CA is a well-known valve platform used in many domestic gas appliances, and this Sime-branded version is designed to meet the manufacturer's specifications for fit and function.

• The appliance fails to ignite, often accompanied by a lockout code
• Heating is intermittent or the boiler does not respond to demand
• A gas smell is detected near the appliance (isolate gas supply immediately)
• The burner flame extinguishes shortly after ignition
• Clicking noises from the valve area without the burner firing
• The appliance repeatedly goes to fault during the ignition sequence

• Check your appliance model and serial number against the compatibility list
• Confirm the existing valve carries the same part number 6089701 or alternative 2040378
• Inspect the valve mounting gasket and replace if worn or damaged
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.