Why Bosch Pilot Ignition TF250 Water Heater appliance does not light?
- JJessica MartinezAug 15, 2025
If your appliance isn't lighting, first check that the mains gas supply is turned on at the mains/cylinder supply and that other gas appliances are working. Also, ensure the gas isolation valve is turned on at the appliance. If these steps don't resolve the issue, the appliance may be blocked and require a service by a qualified technician.