Jaspi Inverter Nordic 8, Installer Manual

Page: 36 / 68

In most cases, the indoor module/control module notes
a malfunction (a malfunction can lead to disturbance in
comfort) and indicates this with alarms and action instruc-
tions in the display.
Troubleshooting
NOTE
In the event of action to rectify malfunctions
that require work within screwed hatches, the
incoming supply electricity must be isolated at
the safety switch by or under the supervision
of a qualified electrician.
If the operational interference is not shown in the display
the following tips can be used:
Basic actions
Start by checking the following:
■ All supply cables to the heat pump are connected.
■
Group and main fuses of the accommodation.
■ The property's earth circuit breaker.
■
The heat pump’s fuse / automatic protection.
(FC1 / FB1, FB1 only if KVR is installed.)
■ The indoor module’s/control module’s fuses.
■
The indoor module’s/control module’s temperature
limiters.
■ That the air flow to JÄSPI Inverter Nordic is not blocked
by foreign objects.
■
That JÄSPI Inverter Nordic does not have any external
damage.
JÄSPI Inverter Nordic does not start
■
There is no demand.
– The indoor module/control module does not call on
heating, cooling or hot water.
■
Compressor blocked due to the temperature condi-
tions.
–
Wait until the temperature is within the product’s
working range.
■ Minimum time between compressor starts has not
been reached.
– Wait for at least 30 minutes and then check if the
compressor has started.
■ Alarm tripped.
– Follow the display instructions.
JÄSPI Inverter Nordic not communicating
■ Check that JÄSPI Inverter Nordic is correctly installed
in the indoor module (JÄSPI Tehowatti Air) or the
control module (JÄSPI MCU40).
■
Check that the communication cable is correctly con-
nected and working.
Low hot water temperature or a lack of hot
water
Caution
The hot water is always set on the indoor
module (JÄSPI Tehowatti Air) or the control
module (JÄSPI MCU40).
This part of the fault-tracing chapter only applies if the
heat pump is docked to the hot water heater.
■ Large hot water consumption.
–
Wait until the hot water has heated up.
■ Incorrect hot water settings in indoor module or con-
trol module.
– See the Installer Manual for the indoor module/con-
trol module.
■
Clogged particle filter.
– Switch off the system. Check and clean the particle
filter.
Low room temperature
■ Closed thermostats in several rooms.
– Set the thermostats to max in as many rooms as
possible.
■
Incorrect settings in indoor module or control module.
– See the manual for the indoor module / control
module (JÄSPI Tehowatti Air / JÄSPI MCU40).
■
Air-filled radiators/underfloor heating coils.
–
Bleed the system.
High room temperature
■ Incorrect settings in indoor module or control module.
– See the Installer Manual for the indoor module/con-
trol module.
Ice build-up in the fan, grille and/or fan cone
on JÄSPI Inverter Nordic
■
Activate "fan de-icing" in the indoor module/control
module. Alternatively "continuous fan de-icing" if the
problem recurs.
■ Check that the air flow across the evaporator is correct.
Large amount of water below
JÄSPI Inverter Nordic
■ The accessory KVR 11 is required.
■ If KVR 11 is installed, check that the water drainage
flows freely.
JÄSPI Inverter Nordic Chapter 9 | Disturbances in comfort 36
9 Disturbances in comfort