Oase Bitron C Replacement UVC Electronic Units

Oase Bitron C Replacement UVC Electronic Units

Model-specific electrical spares for Bitron C 24, 36, 55, 72 and 110

These genuine Oase replacement electronic units are for maintaining an existing Bitron C ultraviolet clarifier. Choose the option that matches both your clarifier model and the Oase spare-part number. Each option is a separate electrical assembly for its specified model, making it possible to replace that component when the remaining equipment is suitable for continued use.

The selection covers five parts listed by Oase for the Bitron C range. The wattage describes the compatible clarifier: it is not an adjustable setting on a universal replacement. A higher-wattage option should not be fitted as an upgrade to a smaller unit. Check the identification label on your existing equipment and compare it with the relevant Oase parts diagram before ordering.

Choose the correct replacement

Existing clarifier	Electronic unit reference	Quantity supplied
Bitron C 24	30951	One electronic unit
Bitron C 36	30985	One electronic unit
Bitron C 55	30989	One electronic unit
Bitron C 72	30997	One electronic unit
Bitron C 110	31002	One electronic unit

Oase identifies these components as the UVC electronic unit, shown as item 2 on the corresponding parts drawings. The manufacturer’s description includes the 2014 designation for these assemblies. For an older installation, use the part reference and the correct drawing for your equipment rather than relying on the appearance of the outer casing.

Electronic unit or complete replacement head?

The parts drawings distinguish the electronic assembly from the complete UVC unit and from the lamp, quartz glass and cleaning rotor. This distinction is useful when deciding what you actually need to replace. Ordering the electrical component is a different purchase from ordering a complete clarifier or a complete head assembly.

For comparison, the complete-unit references on the same Oase drawings are 30909 for C24, 30911 for C36, 30913 for C55, 30919 for C72 and 30922 for C110. Those are not the electronic-unit options offered here. Check the number carefully, especially if you have an old invoice that describes the spare simply as a replacement head.

If the lamp or Bitron C quartz sleeve also needs attention, identify those parts separately before placing your order. A broken sleeve, a worn cleaning rotor and an electrical fault require different components. Replacing one part does not renew the other service items inside the clarifier.

Check the fault before ordering

Green water alone does not establish that the electronics have failed. A clarifier can lose effectiveness because the lamp has reached its service interval, the quartz glass is dirty, water delivery is unsuitable or the bypass setting needs attention. Check the operating instructions and the condition of these serviceable components before choosing an electrical spare.

A lamp that does not light also has more than one possible cause. Oase’s troubleshooting guidance includes the power connection, lamp condition and electrical connection. The manual additionally identifies a thermal safety cut-out on the C55, C72 and C110 models. An electrical diagnosis should be carried out by someone qualified for the work; avoid buying a part solely on the assumption that every unlit lamp means a failed electronic unit.

Safe replacement and recommissioning

Disconnect the equipment from its power supply before maintenance and follow the instructions supplied for your exact Bitron C. Never test an exposed UVC lamp or defeat the safety interlock. The head must be correctly fitted into its casing for the normal safety arrangement to operate.

Handle the lamp and quartz glass carefully during servicing, keep electrical connections dry and inspect seals for damage. The unit-head sealing ring needs to be clean and correctly seated when the assembly is refitted. Use genuine compatible components and follow the manufacturer’s reassembly procedure; forcing a poorly aligned head can damage the equipment.

After maintenance, restore water circulation and check the installation for leaks before returning the UVC to normal operation. If you find damage to the housing, cable or electrical connection, keep the equipment disconnected and obtain qualified assistance. This replacement part should be fitted as part of maintaining the original installation, without modifying its electrical or safety arrangements.

Frequently asked questions

Can I choose any Bitron C wattage? No. Match the electronic unit to the model and part number in the table. Similar names do not make the assemblies interchangeable, and the model’s lamp arrangement must remain correct.

Is this the whole pond UV? No. This page offers the selected electronic spare. The water housing and other separately identified components of a complete Bitron C are different items.

What information helps identify an older unit? A clear photograph of the model label, its wattage and the existing part or relevant parts drawing is helpful. Send those details before ordering if the number on your equipment differs from the reference shown here.