Boiler’s pilot (on older Viadrus models with standing pilot) will not stay lit or goes out frequently.

Safety first: Standing pilot systems involve continuous gas flow. If you smell gas, turn off the gas supply and ventilate immediately. Only competent persons should work on gas components.

Step-by-step checks (limited user actions):

• 1. Follow lighting instructions: Use the exact pilot lighting procedure in the Viadrus manual. Hold the control knob in for the recommended time to heat the thermocouple.
• 2. Observe pilot flame: The flame should be steady and envelop the thermocouple tip. A small, yellow, or unstable flame indicates dirt or low pressure.

Professional actions: A technician can clean the pilot injector, replace the thermocouple, and check gas pressures and flue draught.