Van Remmen 312435 Control unit 60W LL for V140

The Van Remmen 312435 is the correct 60W LL control unit for the V140 UV disinfection system, supplying the power and switching that keeps the UV lamp running at the right output. WrekinWater supplies this as a genuine replacement part when the original unit on your V140 has failed. It replaces the control unit only, not the lamp or quartz sleeve.

Signs this needs replacing

• The V140 won't power on when switched on at the socket.
• The lamp doesn't strike even with a lamp you know is good.
• There's no display or indicator light activity on the unit.
• You can hear a faint hum from the unit but nothing happens.

This control unit regulates the electrical supply to the 60W lamp fitted in the V140 system, so the lamp reaches and holds the correct UV output for reliable disinfection. A failing unit can cause the lamp to run under-powered, flicker, or not strike at all, meaning water can pass through the reactor without being properly treated. It also houses the mains connections for the system, so a fault here is worth treating as a safety issue as well as a performance one.

WrekinWater has been supplying water treatment parts to UK households and businesses for 15 years, serving more than 50,000 customers from our Bettisfield, Shropshire base, and we hold an "Excellent" rating on Trustpilot. We stock genuine Van Remmen units so you get the correct part first time.

How to replace it

1. Isolate the mains power to the UV system before you touch any wiring.
2. Take a note of how the lamp lead and any sensor cables plug into the existing unit.
3. Disconnect the leads and remove the old 312435 unit from its mounting.
4. Fit the replacement unit in the same position and reconnect each lead as it was.
5. Restore power and confirm the lamp strikes and any status lights behave normally.
6. If the wiring isn't a simple plug-in swap, or you're not confident with mains electrics, have a qualified electrician or water treatment engineer fit it.