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For the correct operation, the heater needs regular (annual) maintenance. Stop the
heater and let all system parts cool down before any works:
- check for corrosion on electrical plugs and contacts (with battery disconnected);
- check sealing of fuel hoses;
- check sealing and corrosion in the system of exhaust gases;
- check whether air intake pipes and air ducts are clean;
- check air ducts for damages;
- run a computer diagnostic of the heater.
To ensure reliable operation of the heater, switch it on once a month for 20
minutes on full power, including the warm seasons of the year, when the heater is out
of operation. This action is necessary to remove any viscous film sediments on moving
parts of the fuel pump. Failure to do so may lead to premature failure of the heater.
If separate fuel tank is used, fuel in the system has to be changed at least once a
season. Before the start of the heating season, check the fuel tank. If the tank stored fuel for
a long time (for example from the past heating season), it is necessary to drain it! Rinse the
tank with gasoline or kerosene and fill it with fresh diesel fuel. This procedure is designed to
remove sediment formed in the fuel during prolonged storage. Failure to follow this
procedure can lead to clogging or failure of the fuel pump and increased sooting in the
combustion chamber.
In case of a long parking or storing the vessel or vehicle, disconnect the heater from the
power source (battery) to prevent it from discharging (current consumption of the heater out
of service is (30 ÷ 40) mA).
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