BoilerFaultCodes
The most common Dimplex faults
Your boiler has lost all power, meaning it cannot produce heating or hot water because the electrical supply to the unit has failed.
Check if other appliances in the house have powerInspect your main consumer unit (fuse box) to see if a circuit breaker has trippedCheck the fused spur switch near the boiler to ensure it is switched on
Your boiler is trying to start up but cannot light the gas flame needed to provide heat and hot water.
Check if other gas appliances, like a cooker, are working to ensure gas is reaching the propertyVerify that your gas cupboard valves are open or that you have credit on your meterPress the Reset button on the boiler control panel once to see if the system restarts
Your boiler has started to heat up but the flame has unexpectedly gone out, causing the system to shut down for safety.
Check that your gas emergency control valve is open and you have credit on your gas meterCheck if other gas appliances in your home, such as a hob, are working correctlyReset the boiler by following the instructions in your user manual
Your boiler has stopped working because it cannot detect a flame or has lost its electrical connection, meaning you currently have no heating or hot water.
Check if other gas appliances, like a hob, are working to ensure gas supply is activeEnsure the boiler is plugged in and the fused spur switch is turned onCheck your consumer unit/fuse box for any tripped switchesPress the Reset button on the boiler control panel
Your boiler is struggling to circulate water properly or the pressure is too low, causing it to shut down shortly after lighting.
Check the pressure gauge on the front of the boiler; it should be between 1 and 1.5 bar.If the pressure is low, use the filling loop valves to top the system up with water.Ensure all radiator valves and boiler isolation valves are fully open.Restart the boiler once the correct pressure is reached.
Your boiler has detected that there is not enough water flowing through the system or there is insufficient water pressure to operate safely.
Check the pressure gauge on the front of the boiler; it should ideally be between 1.0 and 1.5 bar.If the pressure is below 1.0, use the external filling loop to top up the system with water until the gauge reaches 1.2 bar.Ensure all radiator valves are open and that the pump is not making loud grinding noises.Reset the boiler to clear the fault code once the pressure is restored.
Your boiler has no power and the screen is blank, meaning it cannot operate at all to provide heating or hot water.
Check if the boiler's power switch is turned onCheck your home's main fuse box (RCD) to see if a circuit has trippedCheck the fuse in the boiler's fused spur switch (the wall switch near the boiler)
Your boiler has shut down because it has reached a dangerously high temperature to prevent damage to the internal components.
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