Care And Maintenance; Troubleshooting - Lampoassa V 7.0 User Manual

3.2. Care and maintenance

The Lämpöässä heat pump is an easy-care heating system. It requires no regular maintenance. If the installation is
carried out carefully and in accordance with the instructions provided, there is usually no need for maintenance. The
fill container inside the geothermal heat pump should be checked every couple of weeks during the first few months
and afterwards approximately once a month for the first year of use thereafter.

3.3. Troubleshooting

If an alarm sounds, we always recommend that you first check that the regulator does not have the 5-minute compres-
sor running prevention enabled. The facility can be overridden by turning the master switch to 0 and back.
The geothermal heat pump is controlled according to two measured values: the measured value at the bottom and at
the top of the water tank. A minimum value is determined for each set value in the "Set values" section. In practice,
consumption of hot water also starts the compressor. The lower the minimum set value for the lower part of the water
tank, the more economical the use of the system. However, it is important to note when determining the set value that
values which are too low will reduce the amount of hot water available. Further information is available in the section
of the Lämpöässä instructions entitled, "Full power geothermal heating 201/GT and 203/GT".
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Problem Possible cause
The compressor does not The water tank temperature is adequate and in accordance
start with the regulator.
The compressor has been stopped for less than 5 minutes.
Fuse problem.
The compressor does not The protection switch for the motor has gone off.
start and the regulator OR
display reads: "divergence The suction pressure switch on the pressure switch has
alarm reading 4 compressor gone off.
operation".
No text is visible on the The device is not getting any power.
regulator.
A fuse has blown.
The display is broken/the circuit board of the regulator is
faulty.
Thermal relays go off The protection switch for the motor goes off if the
immediately when power is equipment is short-circuited or one of the phases is not on.
switched on.
Fuses in the master switchboard of the building are faulty.
Regulator display reads: You have attempted to change the settings in maintenance
Enter code mode.
The system does not produce A sudden drop in outdoor temperature may temporarily
enough heat cause inadequate heating power in new buildings, because
moisture contained in the structure takes up a lot of heat
when it dries.
During the first year, the ground loop may not produce heat
at full power because the earth around the ground loop
pipes has not yet become more solid.
Solution
No action required.
No action required.
Check the condition of the fuses in
the master switchboard.
Press the protection switch for the motor.
OR
Set off the switch.
Check that the control current and
master switch are on.
Replace the fuse (125 mA).
Contact maintenance.
Contact an electrician.
Check the condition of the fuses and
replace as required.
Special settings for maintenance
mode are not required for normal
use. Set values for temperatures can
be set in normal mode.
No action required.
No action required.