Mountfield BP-32WS-MY, Maintenance And User Manual, Page: 13 / 50

12
Error messages
Error Component Possible cause Removal
P1
Water temperature
sensor Interrupted cable to the sensor,
power-supply or faulty sensor.
Check the sensor, wires and connection. If
faulty, replace.
If the error persists, replace the control
unit.
P2
Temperature sensor
at compressor
discharge
Interrupted cable to the sensor,
power-supply or faulty sensor.
Check the sensor, wires and connection. If
faulty, replace.
If the error persists, replace the control
unit.
P3
Temperature sensor
at evaporator inlet Interrupted cable to the sensor,
power-supply or faulty sensor.
Check the sensor, wires and connection. If
faulty, replace.
If the error persists, replace the control
unit.
P4 Auto power down
The water flow through the
exchanger is low or not present
Check the filtration system for water flow
obstructions.
2)
P5
Minimal pressure
switch
Insufficient coolant in the
system.
1)
Coolant leak from system. 1)
1) Call a cooling engineer to check your cooling system.
2) Should the P4 error persist, the system will attempt to restart after 3 minutes; it restarts if the temperature at the compressor
discharge drops below temperature set by parameter 3. If the P4 error emerges 3 times in a row, the system will shut down and the
cause must be removed and the heat pump power-supply disconnected and reconnected manually.
IMPORTANT: Should an intervention in the wiring be needed, contact an authorised service technician.
Solution of other possible issues
Error Demonstration Possible cause Solution
Heat pump
doesn’t
work
Display shows
nothing
Equipment has no power supply
Check the cable, supply, protection,
etc.
Display shows the
water temperature
1. Water temperature reached pre-
set value, heat pump is in pre-set
temperature maintenance mode
2. Equipment is preparing for start-
up (delay 3 min)
1. Check the pre-set temperature
2. Wait a min 3 minutes
Short time
of operation
The display shows
water temperature
and no error
message
1. Fan is not turning
2. Insufficient air flow
3. Coolant leakage
1. Have the internal fan wiring
checked
2. Check possible obstructions of the
air flow, eventually relocate the
heat sensor.
3. Let a professional check the
coolant quantity.
Water
sediment
Water sediment
present on the heat
pump
1. Sediment from the surrounding
environment
2. Water leakage
1. Clean the sediment.
2. Check for water leaks from the
exchanger
Icing on
evaporator
Icing on evaporator Coolant leakage
Have a professional check the
coolant volume
If problems persist, contact your dealer.
Warranty conditions, service and spare parts
Guarantee conditions apply as described in the guarantee certificate. Service and spare parts are provided by Mountfield a.s.
through the outlets and service centres.