OPERATION DETAILED CONTROLS AND GAUGES
3-47
Other Functions 3
Self-diagnostic Function
It is possible to perform troubleshooting of various sensors and equipment used on the air conditioner.
1. Turn the starting switch key to the ON (B) position.
2. Press OFF switch (1). The temperature setting and air flow
display on the liquid crystal display portion go out and
operation stops.
3. If the “
∨“ and “∧“ parts of temperature setting switch (3)
are kept pressed at the same time for at least 3 seconds,
the troubleshooting mode is displayed on the liquid crystal
display portion.
<Monitor display and failure mode>
q When more than one failure is detected, press the “
∨“ or “∧“ portion of temperature setting switch (3) to dis-
play the failures in turn.
q After completing the troubleshooting, press OFF switch (1) again to return to the normal display.
If any abnormality is detected by the self-diagnostic function, ask your Komatsu distributor to carry out inspection
and repair.
Display Failure mode
E-- No failure
E11 Disconnection in recirculated air sensor
E12 Short circuit in recirculated air sensor
E13 Disconnection in fresh air sensor
E14 Short circuit in fresh air sensor
E15
Disconnection in water temperature
sensor
E16 Short circuit in water temperature sensor
E18 Short circuit in sunlight sensor
E21 Disconnection in vent sensor
E22 Short circuit in vent sensor
E43 Abnormality in vent damper
E44 Abnormality in air mix damper
E45
Abnormality in FRESH/RECIRC
air damper
E51 Abnormality in refrigerant pressure
To Next Page
Loading...
Need help?
General
