YOUR DIESEL HEATER
SPECIALISTS
We sell, install and service
diesel appliances for caravans,
RVs, boats and off grid.
Out of Fuel
If you run out of fuel, the fuel line will fill with air and the heater will need to be
re-primed.
1- Turn the heater on and wait 6 minutes while it makes two attempts to start.
2- Once the red LED starts to flash slowly, remove the fuse to reset it and then
replace the fuse and turn it on again.
3- Repeat steps 1 and 2 up to 6 times to allow the heater to re-prime.
Heater starts, ignites
and blows white smoke
from the exhaust
This may be due to either residual fuel in the exhaust system from failed starts
in the past or some obstruction in the air inlet or exhaust causing incomplete
combustion, or it may mean that the heater needs servicing.
•
Check whether the air inlet or exhaust are partially obstructed. Mud, dust
and wasp nests are common causes of obstruction.
•
Run the heater for 20 to 25 minutes and see if the smoke clears. If the
exhaust has unburnt fuel in it from failed start attempts, there will be a lot
of smoke as it burns off.
•
If the smoke continues after 25 minutes and the inlet and exhaust are not
obstructed, the heater probably needs to be serviced.
Heater starts, tries to
ignite but cannot ignite
and blows smoke from
the exhaust
Smoke normally indicates the appliance is getting fuel but is not igniting.
•
Check whether the air inlet or exhaust are partially obstructed. Mud, dust
and wasp nests are common causes of obstruction.
•
Check batteries and power to the heater. Measure the voltage at the
heater using a multimeter. It should be at least 12.5V or voltage drop
between the batteries and the heater should be less than around 0.3V as it
starts (with the glow plug on). If it exceeds this, check power wiring.
•
Check the heater is wired directly to the batteries with no kill switches,
fuse boxes or skinny wiring to cause voltage drop.
•
Plug into power. If this helps, check batteries and wiring.
•
If none of the above works, the heater probably needs to be serviced.
Heater tries to start but
will not ignite. No
smoke, fuel pump
ticking.
This would indicate a fuel supply issue.
•
Follow the Out of Fuel procedure (see above).
•
Use a torch on the fuel line to see if fuel can be seen or is advancing up the
fuel line.
•
If fuel is not advancing up the fuel lines check the fuel lines and fuel tank.
Look for blockages, improperly closed quick disconnect fittings, damaged
fuel line, split or damaged fuel filter, loose connections.
Heater flashes an error
code when turning on
If the red LED makes a series of flashes immediately after the heater is turned
on, count the flashes and check the error codes below. The LED will flash a
number of times then pause, then repeat the sequence again.
Troubleshooting Guide
BELIEF
DIESEL AIR HEATER
USER MANUAL
