Description
The Viessmann 200-W WB2B Ionization Electrode with Gasket 7834235 is a genuine brand-new replacement component for selected Viessmann Vitodens 200-W WB2B and WB2C system boilers. Supplied with a gasket, this ionization electrode carries manufacturer part number 7834235 and comes with a 12-month warranty. Always check your boiler model, output and serial number before ordering.
The ionization electrode detects the burner flame and helps the boiler confirm safe combustion during operation. A faulty electrode may cause flame detection problems, ignition lockouts or intermittent burner operation. As it forms part of the boiler’s combustion and safety system, installation and testing should be completed by a suitably qualified Gas Safe registered engineer.
Product Details
Brand: Viessmann
Part Type: Ionization Electrode
MPN: 7834235
Warranty: 12 Months
Condition: Genuine Brand New
Supplied With: Gasket
Boiler Compatibility
Viessmann Vitodens 200-W WB2B
Fits Appliance GC No.
200-W WB2B 45kW System (Serial No. 7194486)
200-W WB2B 45kW System (Serial No. 7373009)
200-W WB2B 60kW System (Serial No. 7194487)
200-W WB2B 60kW System (Serial No. 7373010)
Viessmann Vitodens 200-W WB2C
Fits Appliance GC No.
200-W WB2C 45kW System (Serial No. 7438087)
200-W WB2C 60kW System (Serial No. 7438089)
200-W WB2C 80kW System (Serial No. 7424189)
200-W WB2C 105kW System (Serial No. 7424191)
Before ordering, please check your boiler model, GC number, serial number and Viessmann manufacturer part number 7834235 to ensure this is the correct replacement part for your appliance.
Delivery & Collection
Collection is available from our Newcastle showroom at Unit 5, Penn Street, Newcastle upon Tyne, NE4 7BG, subject to stock availability. We also offer fast UK delivery via Royal Mail First Class or DPD Next Day, with most orders arriving within one to two working days. Boiler components should be installed by a suitably qualified Gas Safe registered engineer.
Warranty
This brand-new genuine Viessmann boiler ionization electrode is supplied with a 12-month warranty. Warranty claims may be subject to inspection and confirmation that the component was correctly selected and professionally installed.
Returns
We accept returns within 30 days of delivery. The product must be unused, unfitted and returned in its original unopened packaging with all seals intact. We cannot accept returns for components that have been fitted, used, damaged or returned in an unsuitable condition. Please check the boiler model, GC number, edition, serial-number range and part number carefully before ordering.
If you need any help, our team is happy to assist. Please contact us by phone or WhatsApp chat.
Frequently Asked Questions
Is the Viessmann 7834235 ionization electrode compatible with my boiler?
It fits the listed Viessmann Vitodens 200-W WB2B and WB2C system boilers. Always check the exact boiler model, output and serial number before ordering.
What does the Viessmann 7834235 ionization electrode do?
The ionization electrode detects the burner flame and helps the boiler confirm that combustion is taking place safely.
What are the symptoms of a faulty ionization electrode?
Possible symptoms include flame detection faults, ignition lockouts, repeated ignition attempts and intermittent burner operation. Other boiler components can cause similar symptoms.
Is a gasket included with the 7834235 electrode?
Yes. This ionization electrode is supplied with a gasket.
Does this Viessmann ionization electrode come with a warranty?
Yes. This genuine brand-new Viessmann 7834235 ionization electrode comes with a 12-month warranty.











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