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Cod. 1910000001187 - nv01
English
8.4.1
Alarm table i
ALARM TABLE
Protection/
Malfunction
Code
Error
LED flashing
sequence
Possible reasons
Corrective actions
Standby
Dark
Normal running
Bright
Lower tank water temp.
sensor failure
PP1
●
(1flash 1 dark)
1) The sensor open circuit
2) The sensor short circuit
1) Check the sensor connection
2) Replace the sensor
Upper tank water temp.
sensor failure
PP2
●
(2 flashes 1 dark)
1) The sensor open circuit
2) The sensor short circuit
1) Check the sensor connection
2) Replace the sensor
Evaporator coil temp.
sensor failure
PP3
●
(3 flashes 1 dark)
1) The sensor open circuit
2) The sensor short circuit
1) Check the sensor connection
2) Replace the sensor
Return air temp
sensor failure
PP4
●
(4 flashes 1 dark)
1) The sensor open circuit
2) The sensor short circuit
1) Check the sensor connection
2) Replace the sensor
Ambient temp.
sensor failure
PP5
●
(5 flashes 1 dark)
1) The sensor open circuit
2) The sensor short circuit
1) Check the sensor connection
2) Replace the sensor
High pressure protection
(HP Switch)
EE1
●
(6 flashes 1 dark)
1) Too high air inlet temp
2) Less water in the tank
3) The electronic expansion
valve assembly blocked
4) Too much refrigerant
5) The switch damaged
6) The uncompressed gas is in
refrigerant system
1) Check if the air inlet temp is
over the working limited
2) Check if the tank is full of water.
If not, charge water
3) Replace the electronic
expansion valve assembly
4) Discharge some refrigerant
5) Replace a new switch
6) Discharge and then recharge
the refrigerant
Low pressure protection
(LP Switch)
EE2
●
(7 flashes 1 dark)
1) Too low air inlet temp
2) The electronic expansion
valve assembly blocked
3) Too less refrigerant
4) The switch is damaged
5) The fan assembly can not
work
1) Check if the air inlet temp is
over the working limited
2) Replace the electronic
expansion valve assembly
3) Charge some refrigerant
4) Replace a new switch
5) Check if the fan working when
the compressor working. If not,
some problems with the fan
assembly.
Over heat protection
(HTP Switch)
EE3
●
(8 flashes 1 dark)
1) Too high tank water temp
2) The switch damaged
1) If the tank water temp is over
85°C, the switch will open and
the unit will stop for protection.
The unit will restart after the
water comes to normality
(temperature sensed from
upper probe < 60°C).
2) Replace a new switch
Defrost
Defrosting
indicate
…
(a ll long flashes)
Communication failure
EE8
Bright
Summary of Contents for Bollyterm HP
Page 10: ...10 Cod 1910000001187 nv01 ESEMPI DI CANALIZZAZIONI Italiano...
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Page 30: ...30 Cod 1910000001187 nv01 English EXAMPLES OF CHANNELING...
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Page 50: ...50 Cod 1910000001187 nv01 Nederlands VOORBEELDEN VAN KANALISEREN...
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