Malfunction Operating Mode - Honeywell NK300T Einbau- Und Bedienungsanleitung

6.4.4 Malfunction operating mode

Should a malfunction occur, "Er" (Error) is displayed alternately with the corresponding error code. The last status of the Status LED is retained
At the same time the acoustic warning signal sounds and the relay actuated.
After pressing ENTER, the acoustic warning signal is stopped and the relay is opened. However, the "er" display is retained until the malfunction is eliminated.
6.4.4.1 Malfunction- Cause - Elimination
Error code Cause
Measurement on pressure sensor too low
• Sensor defective
• Cable break at sensor
• Device wrongly calibrated
Timeout when filling
System pressure too high (the system pressure
lies at a minimum of 0.8 bar in excess
set value + hysteresis/2)
• Leakage at valve fitting
• Backpressure out of the system when heating
up
Missing set values
Unauthorised configuration data
Missing calibration data
* Switch-off quantity
• 90% of the set volume has been attained
Switch-off quantity
• 100% of the set volume has been attained
Timer / reminder function
Overstepping of range *added-up value is over
99m 3
* The display flashes, alternating
• In filling mode: and yellow LED
• In the automatic mode: Nominal pressure (e.g.)
Because this displays a message, not an error, no acoustic warning sounds.
6.4.4.2 Reset device to factory setting
In order to reset the device to factory setting, press all three
ENTER
control buttons simultaneously for 5 s.
After successfully resetting, the display will show the firmware
version as long as the control buttons are pressed.
Honeywell GmbH
GB
Elimination
Send the device in for repair
Send the device in for repair
Re-calibrate the device
Examine the system for leakage or raise the value for the
filling time
Check device or system
Check device or system
Send the device in for repair
Set settings
Re-configure the device
Reset device to factory setting
Send the device in for repair
Re-calibrate the device
Cartridge change will be necessary soon
Change cartridge
Reset the water use counter status, see Chapter 6.4.3
Have inspection performed
Reset by simultaneously pressing the UP /DOWN key (keep
pressed for 5s)
Reset the water use counter status, see Chapter 6.4.3
) and green LED
22
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MU1H-1551GE23 R0911