Several malfunctions in mobile boiler systems require the knowledge and skills of a professional HVAC technician.
This is because of high temperature and pressure levels that occur in these types of systems.
Some boiler complications can be resolved by the homeowner. But when your mobile boiler provides poor heat or no heat at all, there are several possible causes. Begin troubleshooting with the regular causes and repairs, such as the pilot light and thermostat. The first component to check is your thermostat setting. Ensure your thermostat is set on heat mode and that your setting is above your room temperature. Then, check the circuit panel or fuse box for a tripped breaker or blown fuse. If your mobile boiler is using a sitting pilot light, check to make sure it is on. If not, try to light it manually. A thermocouple malfunction is a regular cause for a pilot light that won’t come on. This is the component that shuts off gas automatically. It could also be caused by air from a defective seal that is extinguishing the pilot. Check your hot-surface ignitor. Hot-surface ignitors are designed to last up to five years. This component should be upgraded every three years during preventive HVAC repair to avoid malfunctions. Don’t forget to also check your circulator pump to confirm whether it is working. If your circulator pump is cool and doesn’t seem to be operating, you may have a blown fuse. If your pump is hot, the malfunction could be with the motor, run capacitor, or the pump. If you are experiencing water leaks from your mobile boiler, check for a faulty pump or faulty relief valve.