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Thank you and Congratulations on your purchase
of the BIG BERTHA Road Chef 12 Volt oven. We
hope you really enjoy using your oven and that it
brings you many great meals in some of the most
awesome places on earth! Please read this oper-
ating manual carefully before starting the device.
Keep it in a safe place for future reference. If the
device is handed over to another person, this oper-
ating manual must be handed over along with the
device.
POWER SUPPLY
The BIG BERTHA Road Chef Oven runs from a 12 Volt power supply. Like many high end 240-volt ov-
ens BIG BERTHA has two elements, one underneath the oven box, and one on the top. Each element
will independently draw 10 Amps / 120 Watts at 12 volts when operating fully. When both are used at
the same time, they will draw 20 Amps / 240 Watts at 12 volts.
The ONLY power option that you must have to power the BIG BETHA is via the supplied Anderson
Plug. Other 12 Volt ovens, offer the options of a cigarette lighter or Merit Plug using a vehicle ‘cigarette
lighter’ plug. However, these cannot be used for the BIG BERTHA as the wiring is typically designed
to take a maximum of 10 Amp. This wire will overheat, melt, and potentially catch fire is used with the
BIG BERTHA. The Anderson plug provides a superior connection and will reduce the chance of a poor
connection. The oven is fitted with an internal fuse. If the fuse does blow then there is most likely a
problem that you should diagnose and rectify before replacing the fuse.
On the front of the oven is an “On” indicator light. This light will only illuminate when the following
criteria are met:
1. There is power reaching the oven,
2. The Element Selection switch is in either the TOP, BOTTOM or BOTH position,
3. The oven Timer is switched on and is counting down, and
4. The Temperature Gauge is switched on.
The oven is fitted with a thermostat so if the desired temperature is met then the light will go off, as it
is not heating anymore, until the temperature drops, and the element comes on again.
WARNING!
The oven, its outer surfaces and contents that have
been in the oven may be hot. Ensure that appropriate
precautions are taken before handling the oven, its
outer surfaces or contents.
