Aztec Classic
- The boiler does not have a Green power light.
Check your circuit breaker has not tripped. Contact your installer or local engineer to check if the boiler has power.
- The boiler has a Solid Red Light showing on the front panel.
This is usually because the internal High Limit Thermostat has been activated due to the water temperature exceeding 100°C. Please contact your installer or local engineer.
Other issues can cause a solid red light – Please consult the Installation Manual for further details
- The boiler does not have an Amber light.
Check the Heating and hot water controls are turned on and calling for heat.
- The boiler has a Flashing Red light.
This could mean the boiler is running at a reduced out put, whilst safe to do so it could mean the property might not warm up as it should. Please contact your installer or local engineer.
- The boiler works for heating but not hot water (or vice versa)
This is a problem with the system controls. Usually one of the motorised valves has failed and will need replacing.