Worcester Bosch Greenstar GB162 Error Code WB01

Worcester Bosch Home Boiler Critical Ignition

Model: Greenstar GB162 | Code: WB01

Applicable Systems
Greenstar GB162

Symptoms

The boiler reports an ignition failure. The burner failed to ignite after the ignition sequence.

Possible Causes

  • Gas supply pressure too low or no gas
  • Ignition electrode worn or mispositioned
  • Ignition transformer or spark generator failure

Troubleshooting Steps

  1. Step 1: Check the gas supply pressure at the boiler inlet
    Pressure meets the minimum requirement
  2. Step 2: Inspect the ignition electrode for wear and position
    Electrode is clean and correctly gapped
  3. Step 3: Test the ignition transformer output
    Transformer produces a strong spark

How to Reset

To reset: Resolve the ignition issue, then press the reset button on the boiler.

Source: Worcester Bosch Boiler Manual, Worcester Bosch Group

Category: Home Boiler