In most cases, the main product notes a malfunction (a
malfunction can lead to disturbance in comfort) and in-
dicates this with alarms and shows action instructions
in the display.
Info-menu
All the measurement values are gathered under menu
3.1 in the main product's menu system. Looking through
the values in this menu can often simplify finding the
source of the fault. See help menu or the main product's
user manual for more information about menu 3.1.
Manage alarm
info / action
reset alarm
aid mode
Low pressure alarm
alarm
In the event of an alarm,
some kind of malfunction
has occurred, which is indic-
ated by the status lamp
changing from green con-
tinuously to red continu-
ously. In addition, an alarm
bell appears in the informa-
tion window.
Alarm
In the event of an alarm with a red status lamp, a mal-
function has occurred that the main product cannot
remedy itself. By turning the control knob and pressing
the OK button, you can see in the display what type of
alarm it is and reset it. You can also choose to set the
main product in 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 most cases it is enough to select "reset
alarm" to correct the problem that caused the alarm. If
a green light illuminates after selecting "reset alarm" the
alarm has been remedied. If a red light is still visible and
a menu called ”alarm” is visible in the display, the prob-
lem that caused the alarm remains. If the alarm disap-
pears and then returns, see the troubleshooting section
(page 16).
aid mode
”aid mode” is a type of emergency mode. This
means that the heat pump produces heat and/or hot
water despite there being some kind of problem with
the heat pump. This can mean that the heat pump's
compressor is not running. In this case the immersion
heater produces heat and/or hot water.
Problems with ERS 10 do not affect the main product's
operation. You therefore do not need to select ”aid
mode" in event of problems with ERS 10.
Caution
Selecting "aid mode” is not the same as correct-
ing 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 possible fault sources:
■
That the main product is running and that the supply
cable to ERS 10 is connected.
■
Group and main fuses of the accommodation.
■
The property's earth circuit breaker.
■
The main product's fuses/temperature limiter.
High or low room temperature
■
See Installer Manual for the main product.
Low or a lack of ventilation
■
Level monitor (BL2) tripped.
–
Checking the condensation water drain and water
seal.
■
Filter blocked.
–
Clean or replace the filter.
■
The ventilation is not adjusted.
–
Order/implement ventilation adjustment.
■
Closed, too much choke or blocked ventilation device.
–
Check and clean the exhaust air devices.
■
Fan speed in reduced mode.
–
Enter the main product's menu 1.2 and select "nor-
mal".
■
External switch for changing the fan speed activated.
–
Check any external switches.
■
Fan running slow because of low incoming outdoor
air temperature.
–
Check the function and settings for the electrical air
heater if installed.
High or distracting ventilation
■
Filter blocked.
–
Clean or replace the filter.
■
The ventilation is not adjusted.
–
Order/implement ventilation adjustment.
■
Closed, too much choke or blocked ventilation device.
–
Check and clean the exhaust air devices.
■
Fan speed in forced mode.
–
Enter the main product's menu 1.2 and select "nor-
mal".
■
External switch for changing the fan speed activated.
–
Check any external switches.
■
Silencers not correctly installed.
–
Check the silencers.
NIBE™ ERS 10-500
Chapter 8 |
Disturbances in comfort
16
8 Disturbances in comfort
