Viessmann 100-W Ignition & Ionization Electrode 7831346

Description

The Viessmann 7831346 ignition and ionization electrode is a brand-new genuine replacement component for selected Viessmann Vitodens 100-W and Vitodens 200-W boilers. It is supplied with a 12-month warranty and is suitable for replacing the original electrode where the appliance model, GC number, serial number and manufacturer part number have been confirmed.

This combined electrode helps create the ignition spark required to light the burner and monitors the flame through the ionization process once the boiler is operating. Installation should be completed by a suitably qualified Gas Safe registered engineer.

Product Details

Brand: Viessmann
Part Type: Ignition and ionization electrode
MPN: 7831346
Condition: New
Warranty: 12 months

Boiler Compatibility

Viessmann Vitodens 100-W WB1B Heat Only

100-W WB1B 13kW Heat Only – GC No. 41-819-21
100-W WB1B 16kW Heat Only – GC No. 41-819-22
100-W WB1B 19kW Heat Only – GC No. 41-819-23
100-W WB1B 26kW Heat Only – GC No. 41-819-24
100-W WB1B 35kW Heat Only – GC No. 41-819-25

Viessmann Vitodens 100-W WB1B Compact

100-WB1B 13kW Compact – Serial No. 7416307
100-WB1B 16kW Compact – Serial No. 7416302
100-WB1B 19kW Compact – Serial No. 7416303
100-WB1B 26kW Compact – Serial No. 7416304

Viessmann Vitodens 200-W

Vitodens 200-W B2HE11 System NG
Vitodens 200-W B2HE19 System NG
Vitodens 200-W B2HE25 System NG
Vitodens 200-W B2HE32 System NG
Vitodens 200-W B2KE30 Combi NG
Vitodens 200-W B2KF30 Combi NG
Vitodens 200-W B2KF35 Combi NG

Delivery & Collection

Collection is available from our Newcastle showroom at Unit 5, Penn Street, Newcastle upon Tyne, NE4 7BG, usually on the same day, subject to stock availability. If the item is not in stock, collection is normally available the next working day. We also offer fast UK delivery through 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 ignition and 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 7831346 compatible with Vitodens 100-W boilers?

Yes. This electrode is confirmed for the listed Vitodens 100-W WB1B heat-only boilers from 13kW to 35kW. It also fits the listed 13kW, 16kW, 19kW and 26kW WB1B Compact models, subject to the stated serial numbers.

Does this electrode also fit Viessmann Vitodens 200-W boilers?

Yes. It is confirmed for the listed Vitodens 200-W B2HE system boilers and selected B2KE and B2KF combi boilers. Check the full appliance model before ordering.

Does part 7831346 provide both ignition and flame detection?

Yes. This is a combined ignition and ionization electrode. It helps produce the ignition spark and then monitors whether a flame has been established through the ionization process.

How can I confirm that 7831346 is the correct replacement?

Check the manufacturer part number on the existing component and compare the boiler model with the compatibility list. For Vitodens 100-W appliances, also check the GC number or relevant Compact boiler serial number before ordering.

What symptoms may indicate an electrode-related problem?

Possible symptoms can include failed ignition, intermittent burner operation, repeated lockouts or the boiler failing to confirm that a flame is present. These symptoms do not automatically confirm that the electrode is defective, so the appliance should be properly diagnosed by a qualified engineer.

Does this electrode require professional installation?

Yes. Ignition and flame-detection components form part of the boiler’s combustion and safety system. Installation and testing should be carried out by a suitably qualified Gas Safe registered engineer.