What, If; Status And Error Messages In The Display; Troubleshooting - Buhnen Hb 720 R Originalbetriebsanleitung

What, if...

5 What, if...
This Section summarises the status and error messages and provides help in eliminating
errors.
If malfunctions occur please check first
• that the power supply
• and compressed-air supply are functioning correctly, and
• whether there is mechanical damage to the device or supply lines (power supply,
compressed air).
If you nd any mechanical damage, the device may in no circumstances be started up
again. Have it checked and repaired by a qualified service agent.
5.1

Status and error messages in the display

Indication
OFF
---
F1H, F2H
F1L, F2L
Average temperature LED
flashes
IAC
SER
5.2

Troubleshooting

Fault
Nozzle goes on dripping
Too little or no melt is
discharged
Compressed air escapes
from closure cap (10)
Compressed air escapes
from service unit
H2200XM_DE-EN_200720.indd 26
Cause
The controller is switched off
• The measured value to be
displayed is greater than 999
or less than -99
• Parameter adjustment is
locked
Sensor breakage (disruption)
Sensor fault, short circuit
Target value reduction after
prolonged period of non-use
Temperature limiter is active
Service case occurred
Possible cause
Nozzle valve partially
obstructed or damaged
Operating pressure too low
Compressed-air supply
disconnected
Nozzle system clogged
Stock temperature too low
Insufficient cover pressure
Connections not airtight
26
GB
Action
Switch on (4)
entsperren: siehe Kapitel 3.4.2
F1: Replace sensor
F2: Repair of device needed
Actuate trigger
Switch off device or change to Standby and
allow to cool down
Have the device checked by a qualified
service agent.
Remedy
Clean or replace nozzle end
Increase operating pressure
(max. 6 bar)
Check copressed-air supply
Clean or replace cone nozzle
and if necessary nozzle end
Raise temperature
Increase cover pressure
Tighten or replace gaskets
see Section
6.2.1, 6.3.1,
6.3.3
3.4.3
6.2.1, 6.3.1,
6.3.3
3.4.1
6.4
26.07.21 08:55