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Premier Heat Pumps – Water Heater and Chiller Manual
Page 21
9 - Problems and Solutions
Please refer to the table below for the most common problems. These can often
be solved by reading the table below. If nothing corresponds to the list, or if the
solutions applied do not solve the problem, contact your retailer
Problem Observation Probable Cause Explanation/Solution
The heat pump does
not start
Blank display
No electrical feed or
power supply
Check the plug and
electrical connection.
Check the line circuit
breaker
The heat pump does
not start
Screen on Low voltage
Find out reason and
repair
The heat pump starts
and stops within a
few minutes
Refrigerant circuit is
damaged
Check leakage, charge
refrigerant with correct
amount.
Change compressor
repair damaged
refrigerant circuit
The temperature of
the water heater
increases very slowly
The heat pump works
Water temperature and
ambient temperature too
low Water amount used
continuously too large.
Water is running
under
the heat pump
Water condensate come
from the condenser and
is part of normal
operation
Attach the plastic
conduit to the black
plastic outlet and direct
the water away from
the unit
The condensates are
formed in humid
conditions on the cooling
fins of the evaporator.
Install the conduit to
direct the water away
from the machine
The thickness of the
frost is thin
Ambient temperature is
too low
The frost is entailed by
the freezing of the
humid air on the wings
of the evaporator. It's
quite natural and the
heat pump is going to
defrost. Consider the
wintering of the heat
pump.
Some frost appears
outside, on the wings
of the evaporator
The thickness of the
frost is thick (the
blades of the ventilator
may rub on the ice
much more on the
inside)
The de-icing probe or
the thermic circuit
breaker does not work
Stop the heat pump and
call your retailer
The pressure of the
refrigerant shown on
the manometer is very
low
Loss of refrigerant from
the unit
The heat pump
works but the
temperature of the
water does not rise
(*)
The pressure of the
manometer
is right
Breakdown or abnormal
wear of the compressor
Stop the heat pump and
call your retailer or a
refrigeration technician