Van Remmen 312450 Control unit 120W

The Van Remmen 312450 is a 120W control unit for Van Remmen UV disinfection systems specified with a 120W lamp, supplying and regulating the power the lamp needs to strike and run correctly. WrekinWater supplies this as a genuine replacement part. It's the standard (non-LL) version of the 120W control unit, so check your existing unit's part number matches before ordering.

Signs this needs replacing

• The UV system won't power on at all.
• The lamp fails to strike even with one you know is good.
• No indicator lights or display response from the unit.
• A fuse blows as soon as the unit is switched on.

The control unit regulates the mains supply feeding the 120W lamp, allowing it to strike and hold the output needed for reliable UV disinfection. If it fails, the lamp may run under-powered or not light at all, so water can pass through untreated even though the system looks like it's operating. As the part that carries the mains connections, a fault here is a safety consideration as well as a performance one.

WrekinWater is a family-run water treatment specialist based in Bettisfield, Shropshire, serving more than 50,000 customers over 15 years with an "Excellent" Trustpilot rating. We stock genuine Van Remmen control units so you replace like-for-like rather than guessing at a compatible alternative.

How to replace it

1. Switch off and unplug the control unit from the mains supply before starting.
2. Note how the lamp lead and any sensor cables connect to the existing 312450 unit.
3. Disconnect the leads and remove the old unit from its mounting.
4. Fit the new unit in the same position and reconnect each lead exactly as before.
5. Restore the power and check the lamp strikes and any indicators work correctly.
6. If your wiring isn't a simple plug-in swap, or you're not confident with mains electrics, ask a qualified electrician or water treatment engineer to fit it.