Warm Tech WTCAC30R-DU, Оригинальное руководство пользователя

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Before starting any maintenance task, shut down, unplug and let the
heater cool down for at least 15 minutes.
Do not attempt any electrical repair yourself. If the heater needs service
or repair, contact a qualified technician.
Do not use a faulty unit unless a qualified technician has inspected and
repaired it.
When cleaning, make sure that water does not enter the unit.
Do not open the enclosure to clean the inner parts. Do not spray water
into the heater.
Never use solvents, gasoline, toluene and similar aggressive chemicals
to clean the heater.
Notice
1
、
Before the maintenance shut off the heater and pull out the plug
；
2
、
Never maintain the heater with fuel in tank.
◆
check the fuel tank
When there is waste and water in the tank, clean and drain the fuel tank.
How to drain the fuel tank
（
see below figure
）
1
、
put the heater on the working table and place an oil container under the fuel tank
2
、
use a spanner to loose the drain screw und release the water and waste inside the tank
；
3
、
after draining tighten the drain screw again and wipe clean the left water and oil.
drain the fuel tank