ZENIT
80
+
TYPE TUBE RADIANT HEATER
Instructions for Installation and Servicing
39
The following controll lamps located on the bottom side of appliance (burner head) indicates the mode :
• Green: operation
• Red: error
10.
Troubleshooting
Malfunctions
Symptoms
Possible causes
Corrective actions
Ignition and
flame sensing
system
Gas burner and
combustion air
fan
There is no
spark between
electrodes of
the igniter
•
The electrodes of igniter is polluted
•
Electrical connection between igniter and
automation is broken
•
Spark interval is too large
•
Automatic control went wrong
•
Clean electrodes
•
Check electrical connection between
ingnition module and automatic
control
•
Check spark interval
•
Replace automatic control
Combustion air
fan does not
revolve
•
There is no electrical supply at fan motor
•
Fuse has blown
•
Differential switch is not at rest
•
Automatic control went wrong
•
Fan motor went wrong
•
Check the electrical supply
•
Replace the fuse, and try to find the
reason of high current consumption
•
Replace differential switch
•
Replace automatic control
•
Replace the fan motor or repair it
Ignition cycle
is finished nor
-
mally
Appliance does
not operate
after the first
ignition cycle
•
The gas supply valve is turned off
•
Air is not removed sufficiently from gas pipe
•
Nozzle pressure is not suitable
•
Necessary air flow for burning is not suitable
•
Turn on the gas supply valve
•
Remove the air from the pipe
•
Check the input and output pressure
on the solenoid valve
•
Check the cleanness of inlet tube and
fan blades
Ignition cycle
is finished nor
-
mally
Appliance does
not operate
after the more
ignition cycles
•
Solenoid valve went wrong
•
Differential switch went wrong
•
Uncertain connection between ignition mod-
ule and automatic control
•
Nozzle pressure is not suitable
•
Necessary air flow for burning is not suitable
•
Replace the solenoid valve
•
Replace the differential switch
•
Check the electrical connection
•
Check the input and output pressure
on the solenoid valve
•
Check the cleanness of inlet tube and
fan blades
The gas burn-
er ignites but
stops soon
•
The phase and null are replaced
•
The nozzle pressure is not suitable
•
The air for combustion is not sufficient
•
Differential pressure switch switches back to
rest
•
Check the wires connection points
•
Check the input and output pressure
on the solenoid valve
•
Check the cleanness of inlet tube and
fan blades
•
Check cleanness of burner tube, ra-
diant heat tubes and flue pipe system
and clean it if necessary
Appliance
operates but
the combustion
is uneven and
noisier than it
should be
•
The turbulator is not placed into the last heat
radiant tube
•
Check the presence of the turbulator