8
Number
of blinks
Malfunction
description
Comments
Troubleshooting
9
Shutdown due to
overvoltage
Check the battery, the voltage regulator and power supply
wiring. Voltage between contacts 1 and 2 of power
connector should not be higher than 30 V (not higher than
16 V for 12 V product).
Shutdown due to
undervoltage
Check the battery, the voltage regulator and power supply
wiring. Voltage between contacts 1 and 2 of power
connector should not be lower than 20 V (not lower than
10 V for 12 V product).
10
Ventilation time
exceeded
Check the air intake and the exhaust pipe. If clogged,
remove foreign particles.
12
Overheating in
the control unit
area. Overheating
via flame detector
Check the heater inlet and outlet pipes for free inflow and
outflow of air.
Check the combustion air supply system and the gas
exhaust pipe.
Repeat the starting procedure for heater cooling.
13*
Flameout in
combustion
chamber due to
voltage drop
Check the battery and wiring. (Voltage drop can be caused
by long operation of the electric starter).
14*
Overheating
inside the heater
in the area of the
heated air outlet
temperature
sensor
Check the heater inlet and outlet pipes for free inflow and
outflow of air.
16*
Heater is
locked**
To unlock the heater contact a service center.
* only for PLANAR-8DM type air heaters
** Attention! ** If the “Overheating” error appears three consecutive times during heater
startup or operation, it will be locked. The locking is activated due to overheating, regardless
of which sensor that detected the errors. In case of lock, the control panel LED will blink 16
times. To unlock the heater, contact a service center.
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