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5
40. Heating system
Service
manual
40
Continued from the previous page
• The control box could be defective.
Replace the defective control box, fig. 1.
As mentioned earlier gas heating problems
often occur due to shortage in the air supply. It
is therefore very important that the air supply to
the room is sufficient. The flame must be bluish
as a yellowish flame indicates a shortage in the
air supply. The glare from the flame is visable
through the loading door glass, fig. 2.
A rule of thumb for dimensioning the room’s air
inlet is that the air inlet opening must be 5 times
the size of the air outlet opening.
To read more about the exhaust system see the
installation manual for T31200 /T3900, TD135/
TD100.
Resetting gas error (E 14)
When resetting gas error E-14 the dryer must
operate on a program with heat and the heat
indicator must be on.
On standard door the gas reset button is on the
control box.
On Sliding Door, the gas reset button is on the
rear of of the control panel, fig. 3.
The dryer must only be reset 3 times. If the
dryer, however, has to be reset more than three
times it has to be put out of order and a service
technician must be called (does not apply for
Japan).
Gas reset
button
2
3
Inspection
1
Control box
Heat
indicator
Gas reset
button
Sliding Door
3
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