Disturbances In Comfort; Info Menu; Manage Alarm; Troubleshooting - Nibe F470 Installer Manual

10 Disturbances in comfort

In most cases, F470 notes a malfunction (a malfunction
can lead to disruption in comfort) and indicates this with
alarms, and instructions for action, in the display.

Info menu

All the heat pump measurement values are gathered
under menu 3.1 in the heat pump menu system. Looking
through the values in this menu can often simplify find-
ing the source of the fault. See help menu or user
manual for more information about menu 3.1.

Manage alarm

Low pressure alarm
alarm
info / action
reset alarm
aid mode
In the event of an alarm, some kind of malfunction has
occurred, which is indicated by the status lamp changing
from green continuously to red continuously. In addition,
an alarm bell appears in the information window.
ALARM
In the event of an alarm with a red status lamp a mal-
function has occurred that the heat pump cannot remedy
itself. In the display, by turning the control knob and
pressing the OK button, you can see the type of alarm
it is and reset it. You can also choose to set the heat
pump to aid mode.
info / action Here you can read what the alarm means
and receive tips on what you can do to correct the
problem that caused the alarm.
reset alarm In many cases, it is sufficient to select "reset
alarm" for the product to revert to normal operation. If
a green light comes on after selecting "reset alarm",
the alarm has been remedied. If the red light is still on,
and a menu called "alarm" is visible in the display, the
problem causing the alarm still remains.
58 Chapter 10 | Disturbances in comfort
aid mode "aid mode" is a type of emergency mode.
This means that the heat pump produces heat and/or
hot water even though there is some kind of problem.
This could mean that the heat pump's compressor is
not running. In this case, the immersion heater produces
heat and/or hot water.
Caution
To select aid mode an alarm action must be
selected in the menu 5.1.4.
Caution
Selecting "aid mode" is not the same as cor-
recting the problem that caused the alarm. The
status lamp will therefore continue to be red.

Troubleshooting

If the operational interference is not shown in the display
the following tips can be used:
BASIC ACTIONS
Start by checking the following items:
• The switch's (SF1) position.
• Group and main fuses of the accommodation.
• The property's earth circuit breaker.
• Heat pump's earth-fault breaker.
• Miniature circuit breaker for F470 (FC1).
• Temperature limiter for F470 (FQ10).
• Correctly set load monitor.
LOW HOT WATER TEMPERATURE OR A
LACK OF HOT WATER
• Closed or throttled externally mounted filling valve for
the hot water.
– Open the valve.
• F470 in incorrect operating mode.
– Enter menu 4.2. If mode "auto" is selected, select a
higher value on "stop additional heat" in menu 4.9.2.
NIBE F470