Mistral Boilers
Compare Mistral boilers including combi, regular and system boilers and gas, oil and electric boilers.
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Mistral Combi Boilers
Mistral combi boilers a space-saving wall mounted unit that is normally located in a bathroom or kitchen and hidden within a cupboard and give fast access to hot water by heating up water directly from the mains water supply. Mistral combi boilers are energy efficient units with low running costs that are ideally suited to apartments and small to medium sized houses with 1 to 2 bathrooms. Mistral combi boilers don’t require hot water tanks or cylinders as a regular boiler or system boiler does therefore making these Mistral combi boilers cheaper to install.
Mistral System Boilers
Mistral Regular Boilers
| Fault | Possible Cause |
|---|---|
| Burner does not start | Air locks, supply lines blocked or tank vent blocked (no fuel getting into tank) |
| Restriction suspected / fuel supply fault | Power supply to the boiler failed, burner control box locked out, burner motor fault or pump seized |
| Burner fault locks out after 15 seconds | Photocell fault, restricted oil supply, combustion setting out of specification |
| No flame established (burner fault) | Ignition failure, oil restricted or nozzle locked |
| Burner fault runs but continually pulsates | Condensate trap blocked or flue system blocked |
| Lock-out | Losing oil in the supply suction line or oil level in tank below minimum level |
| Burner running but smokes | Tank topped with wrong fuel/ Air supply restricted/ Dust build up |
| Burner flame shuts down slowly | Balanced flue system leaking/ Combustion leaks/ Suction line drawing air into fuel |
| Burner fails to reach working temperature | Burner output restricted/ Low efficiency/ Control thermostat fault |
| Oil smells | Oil leakage at connection |
| No hot water | Circulating pump seized/ Programmer channel off |
| Flow and water temperature low | Programmer for central heating or domestic hot water are off, debris build-up or low water supply pressure |
| No central heating or hot water | Programmer channels are off, thermostat fault or turned off |
| Thermostat trips off | Fault circulating pump |
| No central heating | Spring fault or return valve not moving or operating properly – room stat error |
| No domestic hot water | Spring fault, jammed in how water mode, flow switch blocked or faulty |
| Discharges on pressure relief valve | Pressure vessel has lost charge, insufficient expansion volume |