Periodic Heater Maintenance & Troubleshooting
In the event of a failure there are several items which
should be checked before major troubleshooting is done:
• Remove rad cap and confirm coolant level is filled to
the top of the reservoir. If coolant is low, add a 50/50
mix of automotive coolant
• Check coolant hoses and fuel lines for leaks
• Check electrical harnesses and connections
for corrosion
• Run the heater for a minimum of 15 mins once
a month, even when the boat is not in use
• Maintain the batteries and electrical connections in
good condition. When the system senses insufficient
power supply, the heater will not start
• Low and high voltage cut-outs will shut the
heater down automatically
• Check circuit breakers and fuses
• Make sure there are no obstructions at the
combustion intake and exhaust
• Make sure there is adequate fuel in the tank
CAUTION
Care should be taken not to overfill the diesel fuel tank as
fuel may expand and overflow out of the tank or fittings.
Only fill the fuel tank to 7/8 of the tank’s capacity.
To avoid potentially dangerous onboard fuel spills, always
remove the diesel tank out of the cabin area before filling
it with fuel
If diesel fuel spills onto your skin, immediately wash with
soap and water Change clothing if saturated with diesel
fuel If diesel fuel gets into your eyes or diesel fumes are
inhaled, seek medical attention If diesel fuel is swallowed,
seek medical attention
Hot Water Tank
The hot water tank is located under the floor, just inside
the cabin The fresh water in the hot water tank can be
heater either by the Espar Hydronic system or by AC
shore power The hot water tank is hard wired into the
shore power system and will automatically run off of
the shore power source once that the power supply is
connected
Refer to the hot water tank manufacturer’s manual for
operating and safety instructions.
36 KINGFISHER BOATS 3125
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3425 OWNERS MANUAL
