Riello Repair Service in Forest Town

What does 7 flashes mean on a Riello 40 G oil burner?

Seven flashes on a Riello 40 G oil burner indicate loss of flame during operation, which could be caused by fuel supply issues or internal component faults. Do not attempt internal repairs yourself. Switch off the burner and check externally that the oil tank has adequate fuel and the supply valve is open. Contact an OFTEC registered heating technician to diagnose and adjust the burner.

What does error E78 mean on a Riello ALU PRO boiler?

Error E78 on a Riello ALU PRO boiler indicates a water pressure switch fault - the pressure switch is open or faulty. Do not attempt to repair gas appliances yourself. Switch off the boiler first, then check the pressure gauge. If pressure appears normal, the switch may be faulty. Contact a Gas Safe registered engineer to diagnose and repair the pressure monitoring system.

What does error A03 mean on a Riello Start Condens boiler?

Error A03 on a Riello Start Condens boiler indicates a fan fault (tacho fan alarm) causing a definitive lockout. The combustion fan is not operating correctly. Do not attempt to repair gas appliances yourself. If you smell gas, do not operate any switches, ventilate the area if safe, leave the property, and call the Gas Emergency Service from outside. Contact a Gas Safe registered engineer to inspect and repair the fan assembly.

What does error E20 mean on a Riello ALU PRO boiler?

Error E20 on a Riello ALU PRO boiler indicates a flow sensor fault - the flow temperature sensor circuit is faulty. Do not attempt to repair gas appliances yourself. Switch off the boiler. If you smell gas, do not operate any switches, ventilate the area if safe, leave the property, and call the Gas Emergency Service from outside. Contact a Gas Safe registered engineer to diagnose and replace the faulty sensor.

What does error E097 mean on a Riello Family KIS boiler?

Error E097 on a Riello Family KIS boiler indicates a flue obstruction alarm or current modulation fault. This is a serious safety issue. Do not attempt to repair gas appliances yourself. Do not restart the boiler. If you smell gas, do not operate any switches, ventilate the area if safe, leave the property, and call the Gas Emergency Service from outside. Contact a Gas Safe registered engineer immediately to inspect the flue system.

How does boiler frost protection work on Riello condensing boilers?

Riello condensing boilers have built-in frost protection that activates when the water temperature drops below approximately 5°C. The boiler automatically heats the water to around 10°C, then switches off. This cycle repeats as needed to prevent freezing. Note that this only protects the boiler itself - external pipework still requires separate insulation.

What should I do if my Riello oil burner flame appears yellow or produces soot?

A yellow, unstable flame or visible soot indicates incomplete combustion, which is a safety concern. Switch off the burner immediately and ventilate the area. Do not use the burner until it has been inspected and serviced by an OFTEC registered heating technician, who will check the air-to-fuel ratio, nozzle, and combustion head.

How do I bleed a Riello oil burner after running out of fuel?

After refilling with oil, allow the fuel to settle for up to an hour, then locate the bleed valve on the burner (usually an allen screw on the side). Place a suitable container underneath to catch any fuel spillage - oil is flammable and spillages must be cleaned immediately. Loosen the screw to release trapped air, then press the reset button once air stops escaping and oil begins to flow. If the burner fails to start after two or three attempts, contact an OFTEC registered heating technician.

What should I do if my Riello boiler shows a low pressure warning?

If the pressure gauge reads below 1 bar, you need to repressurise the system. Locate the filling loop (a flexible braided hose with valves), open both valves until the pressure gauge reaches 1-1.5 bar, then close both valves. If the pressure drops repeatedly, this may indicate a leak in the system - contact a Gas Safe registered engineer to investigate and repair the fault.

How often should the oil filter be replaced on a Riello system?

The external oil filter should be replaced at least once a year. The filter container should be thoroughly cleaned before installing the new filter.