HOT AIR GENERATOR
10
GB
OBSERVED FAULTS, CAUSES AND REMEDIES
Problem
Cause
Remedy
The heater won’t start
1.Faulty electrical supply
2.Wrong positioning of main switch
3.Wrong setting of room thermostat
4.Safety device (burner, thermostat L) not
restarted after repairs
1. Check function and positioning of main switch
1. Check power cord
1. Check electrical connections
1. Check fuses
2. Put main switch in correct position
3. Check setting of room thermostat
3. Check function of room thermo-stat
4. Press the appropriate restart button
Thermostat L cuts in (the lamp (9)
light up and then it cuts down)
1.The combustion chamber has overheated
1. Check fuel fl ow
1. Check position registers, draw-holes, etc.
1. Remove extraneous material from air ducts and
ventilation grills
Thermostat L2 cuts in (Warning
lamp (9) lights up)
1. Excessive combustion chamber over
heating
1. Check as indicated above
1. If fault persists contact our Service Center
Thermal relay RM cuts in (warning
light (9) lights up)
1. Fan current absorption is excessive
1. Heater with helicoidal ventilator: remove even-
tualdebris preventing free fl ow of air on intake
and outlet. Check length of air ducts, reduce if
excessive.
1. Heater with centrifugal ventilator: check setting of
transmission belt as indicated in chapter (“CON-
NECTION TO HOT AIR DUCTS”).
1. Always check that current absorption remains be-
low value indicated on motor manufacturer plate
The burner starts up, the fl ame
doesn’t light up and the restart
light comes on
1.Burner not working correctly
1. Press the restart button to turn on the heater. If
the same problem arises again call an Authorized
Service Technician
The fan doesn’t start up or starts
up late.
1.No electrical power
2.F thermostat out of order
3.Winding of motor burnt or interrupted
4.Condenser burnt
5.Motor bearings blocked
1. Check fuses
1. Check electrical connections
2. Check the thermostat, set it and replace it if
necessary
3. Replace the fan motor
4. Replace the condenser
5. Replace the bearings
The fan vibrates or makes
unusual noise
1. Extraneous material on fan blades
2. Not enough air circulation
1. Remove extraneous material
2. Remove obstacles to air circulation
Not enough heat
1.Wrong burner
1. Call an Authorized Service Technician
