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MAINTENANCE
Fans do not require maintenance, they are mounted on ball bearings, protected against humidity and dust, and equipped on
thermal protector. Expected life is 30,000 hours. Only external fan, according to degree of impurity which they are subjected, must
be periodically cleaned with compressed air. Use of filter is appropriate if there are impurities in the air. Warning "before beginning
any maintenance, disconnect power supply."
TROUBLE-SHOOTING TABLE
DEFAULT
No mains power supply in the unit
Fan does not run
High or low
Thermostat does not commute
temperature
CAUSE
Mechanical lock of the fan
Magnetic valve gripped
CHECKING AND SOLUTION
Check electrical connections, circuit breakers
and/or fuses on the mains power supply line.
Check if there are any physical obstacles.
Check thermostat's operating.
Check magnetic valve's operating
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