22
Caution: High risk of electrical shock!
Do not attempt to diagnosis unless
you are a trained technician!
In case the element is not heating. First
check to see that the coach is plugged
into shore power and the element em-
blem on the bottom right of the touch
screen is red. After you have checked
these things unplug the unit from the
wall and test the ohms across the plug.
You should have 10.1 ohms. If you
are not getting the correct amount of
ohms, check the red and black wire on
the 12 volt/120 volt relay for 12 volts.
If you do not have 12 volts, inspect the
wiring between the tank and the tim-
berline control box. Next you will need
to check the high temperature shutoff.
If this has been set off you will need to
reset it by pressing the red button.
If all of this is correct, check for 120 volts
across the top of the element. -Warning
risk of high voltage shock- If you do
not have the correct voltage here. You
will need to replace the element.
To replace the element rst unplug
the unit. Then you will need to remove
the plug in the left side of the tank and
drain the coolant into a container.
Pinch off the coolant lines on the
bottom of the tank. You will then need
to tilt the tank on its side to remove
the old element and install the new
element. You will need to rell the unit
with Dex cool antifreeze.
To replace the tank rst unplug the unit.
Then you will need to remove the plug
in the left side of the tank and drain the
coolant into a container. Pinch off and
remove the coolant lines on the bottom
of the tank. Remove the old unit. When
you install the new unit you will need to
ll it with Dex cool antifreeze.
If the temperature on the touch screen
for the tank is not reading correctly. You
will need to inspect the wiring between
the control box and the tank. If there
are no issues with the wiring you will
need to replace the temperature sen-
sor inside the cap of the tank. Unplug
the unit before replacing the sensor!
Unpin and remove the sensor from the
tank. Pin the new sensor in the four pin
molex plug and install on the tank. Do
not overtighten the bolts!
If the 12 volt/120 volt relay is not
opening and closing. You will need to
replace the unit. To replace it pull the
wires off and plug them into the new
unit. Place the new unit.
10. Timberline Tank
Fig. 17. Timberline Tank
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