Daikin EUWL KZW1 Series Service Manual page 90

Malfunction Indications and Safeties Overview
2.2 Malfunction Indications Overview
1
Alarm and warning
codes
Code Description
The anti-freeze alarm has been activated.
a1
NTC probe used to measure the evaporator inlet water temperature is
e1
defective.
NTC probe used to measure the evaporator outlet water temperature is
e2
defective.
3 3
NTC probe used to measure the condenser inlet water temperature is
e3
defective.
EEPROM on the digital controller inside the unit is defective.
ee/ep
No water flow for:
fl
4
■
15 s after the pump was started, or
■ 5 s while the compressor is active.
The high-pressure switch, the discharge thermal protection or the over-
h1
current protection of the compressor motor is activated .
The low-pressure switch is activated.
l1
5
The compressor requires maintenance. The total running hours of the
n1
compressor (direct parameter c9) has exceeded the setting of the
timer threshold for maintenance warning (user parameter cb —see
"How to access the parameters" on page 2–17).
The compressor requires maintenance. The total running hours of the
n2
compressor (direct parameter ca) has exceeded the setting of the
timer threshold for maintenance warning (user parameter cb —see
"How to access the parameters" on page 2–17).
The reverse phase protector has been activated.
fl h1
Voltage is too high.
e0
Voltage is too low.
ei
Noise of power supply
el
What happens in
the event of an
alarm or a warning
3–8
The following alarm and warning codes can appear on the screen:
In the event of an alarm or a warning, the following happens:
Alarm
■ The unit is shut down.
■
The buzzer is activated.
■ The alarm relay is energized.
■
The display starts flashing, alternately showing the
alarm code(s) and the inlet water temperature.
Alarm or
Reset
warning
Alarm Manual
Alarm Automatic
Alarm Automatic
Alarm Automatic
Alarm Automatic
Alarm Manual
Alarm Manual
Alarm Manual
Warning Manual
Warning Manual
Alarm Automatic
Warning Automatic
Warning Automatic
Warning Automatic
Warning
The display starts flashing, alternately
showing the warning code and the inlet
water temperature.
Part 3 – Troubleshooting
ESIE-0303
See page
2–16
3–14
3–14
3–14
1–43
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