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5. . Faults
5.1 Safety instructions
d All work on the inside of the unit may only be
carried out by appropriately qualified
technical staff.
w Before you begin: read the safety instructions.
See also:
1.5 "Safety instructions" on page 10
5.2 Resolving simple problems
If you suspect a fault, first try to resolve the problem, using
the table below. You need not be an expert for this.
Solutions to simple problems
P
ROBLEM PROBABLE CAUSE WHAT TO DO
There is a draught Air curtain is turned off. Turn the air curtain on.
Air curtain is adjusted too low. Switch the air curtain to a higher
operating strength.
Air curtain is adjusted too high. Turn the air curtain down.
The unit’s heater has been turned
off.
Turn the heater on.
The heater is adjusted too low. Turn the heater up.
It is too hot. Space heating and air curtains are
colletively producing too much
heat.
1. Turn space heating down.
2. Turn the unit down.
3. Turn the heater down.
It is too cold. Room is too cold. 1. Turn space heating up.
2. Turn the unit up.
3. Turn the heater up.
It is too noisy. Air curtain is at highest setting. Turn the unit down.
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