Master BV 470FS, Руководство по эксплуатации и обслуживанию

Страница: 8 / 64

HOT AIR GENERATOR
8
GB
TROUBLESHOOTING
Problem Cause Remedy
Heater does not start 1.Faulty electrical supply
2.TA thermostat cuts in.
3. Wrong setting of eventual room thermostat.
1.Check function and positioning of main switch
1.Check power cord
1.Check electrical connections
1.Check fuses
1.Put main switch in correct position
2.See instruction relative to TA thermostat.
2.Check oil
fl ow
2. Make sure no additional air ducts restrict air fl ow.
2. Remove dirt or foreign particles from air outlet.
grilles, louvres or ducts.
3.Check positioning of thermostat and correct.
3.Check if thermostat is functioning properly.
Thermal relay RT cuts in
(Warning lamp (10) lights
up) 1.Fan motor current absorption excessive 1. Heater with helicoidal ventilation:remove eventual
debris preventing free fl ow of air on intake and
outlet.Check length of air ducts, recluce if exces-
sive.
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.
Thermostat TS 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.
Burner motor starts but
does not ignite. 1.Bad functioning of burner. 1. Read burner instructions.
Ventilator does not start or
starts late. 1.No electrical current.
2.TV thermostat out of order.
3.Motor winding faulty.
4.Burned out condenser.
5.Blocked motor bearings.
1.Check fuses.
1.Reset thermal relay.
2.Check thermostat, set or replace
3.Replace fan motor.
4.Replace condensor.
5.Replace bearings.
Noise and vibrations from
ventilators. 1.Dirt or foreign particles of fan blades.
2.Restricted air circulation. 1.Remove foreign particles.
2.See previous instructions.
Insuf fi cient heat. 1.Wrong burner. 1.Reed burner instructions.