F.359 No ignition spark

What the control is telling you

Burner in a fault state.

Applies to: Vitodens 200-W B2HE 85, 120, 150, 199

Likely causes

• Damaged electrode insulation
• No ignition voltage from BCU
• Faulty ignition module

Test and repair steps

1. Check ignition electrode insulation.
2. Check for 120 V AC at the ignition module during ignition; if absent, replace the BCU.
3. If 120 V AC is present, replace the ignition module.
4. Check cables and leads between ignition module and electrode.
5. Reset the appliance.

Models that show this code

4 models in Vitodens 200-W B2HE

Other codes on the same units

• F.353 Insufficient gas supply, output reduced
• F.354 Gas modulation valve tolerance outside range
• F.355 Analogue signal reference check: flame signal at start
• F.357 Insufficient gas supply
• F.361 No or weak flame signal at burner start
• F.366 Gas valve supply does not switch off
• F.367 Gas valve supply does not switch off
• F.369 Flame loss right after ignition (safety time)