8 – T
ROUBLESHOOTING
Failure searching and problem solving schedule
Founded failure
Fans are not running
Some fan speeds are not working
Air performance decreasing
Condensate water stays inside the unit
9 – M
D
ATERIAL
At the end of unit's lifetime, its components must be dismantled and disposed of respecting the operational regulations present in its
country of installation.
The materials that the unit is constructed of are:
-
Precoated sheet metal
-
Zinc-plated sheet metal
-
Aluminium
-
Copper
-
Polyester
-
Polyethylene
-
Mineral wool
-
Plastic
Probable cause
•
Power supply is switched off
•
No signal from control panel
•
Wrong or loose electrical connections
•
Motors on thermal protection mode
•
Relais board failure
•
Motor wiring burned
•
Air filter dirty
•
Air duct blocked
•
Condensate drainage blocked
•
Lacking or not adequate trap
ISPOSAL
Possible solution
•
Switch on the power supply
•
Push the correct buttons of the control
panel
•
Restore the right connections
•
Check motor current
•
Replace the relais board
•
Replace fan motor
•
Clean or replace filter
•
Check air plant (are dampers open ?)
•
Clean or free the drainage
•
Install a right trap
GB
9