Observed Faults, Causes And Remedies - Master GREEN 70 Manuel De L'utilisateur

HOT AIR GENERATOR
10
GB

OBSERVED FAULTS, CAUSES AND REMEDIES

Problem
The heater won't start
Thermostat L cuts in (the lamp (9)
light up and then it cuts down)
Thermostat L2 cuts in (Warning
lamp (9) lights up)
Thermal relay RM cuts in (warning
light (9) lights up)
The burner starts up, the fl ame
doesn't light up and the restart
light comes on
The fan doesn't start up or starts
up late.
The fan vibrates or makes
unusual noise
Not enough heat
Cause
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.The combustion chamber has overheated
1. Excessive combustion chamber over
heating
1. Fan current absorption is excessive
1.Burner not working correctly
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. Extraneous material on fan blades
2. Not enough air circulation
1.Wrong burner
Remedy
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
1. Check fuel fl ow
1. Check position registers, draw-holes, etc.
1. Remove extraneous material from air ducts and
ventilation grills
1. Check as indicated above
1. If fault persists contact our Service Center
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
1. Press the restart button to turn on the heater. If
the same problem arises again call an Authorized
Service Technician
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
1. Remove extraneous material
2. Remove obstacles to air circulation
1. Call an Authorized Service Technician