KDB-GOM
Series
- 65 -
7
# 10
Failure
Air pressure failure
No
Symptoms and Causes
Solutions
Reference
The KDB-GOM boiler air pressure switch
always operates at the ON position of
contact B and displays failure code # 10
in case of back pressure or back fire.
1
The diaphragm inside the air pressure
switch is defective and the contact is OFF.
- Check the resistance of the air pressure switch
terminal when the boiler is idle and if it shows
an infinite level (“0” is normal), it is defective
and the air pressure switch has to be
replaced.
<Fig. 1>
2
The installation and the position of the flue
is not appropriate.
- Correct the flue due the formation of a wind
pressure zone.
- Check whether the connector terminal is well
assembled and reconnect.
If the symptoms remain after checking the
above, replace the main controller.
<Fig. 1>
Air Pressure Switch
