Technibel PHRIE Series - Page 96

96
Sensors failure

Maintenance
remocon
alarm
display
Alarm
contents
Judgement conditions
clearing
condition
Judgement and correction

F01
Disconnection, open
circuit or short
circuit
in H/E temp. sensor
“liquid line”
E1/S7
Open circuit or short circuit
Automatic
recovery
1. Check “liquid line” temp. sensor E1/S7
2. Check connection
3. Check A2 board
F02
Abnormal pressure
detected in the plate
exchanger
with
E2P/B1 pressure
sensor
Value delivered by
pressure sensor is out off
range
Automatic
recovery
1. Check pressure in the frigorific circuit
2. Check connection between E2P and A2
board
3. Check JTP bridge on A2 board, (set between
pins 2 & 3” = factory setting)
3. Check U voltage on E2P connector on A2
board, pins 1/3 (24V DC):
20V < U < 26V
Right voltage: E2P sensor damaged
Wrong voltage: A2 board damaged
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F04
(*)
Disconnection, open
circuit or short
circuit
in discharge
temperature sensor
TD/S5
Sensor detection error
(90°C or more after
60 minutes has
elapsed since the
compressor was halted
- open circuit)
Automatic
recovery
1. Check discharge temp. sensor TD/S5
2. Check (A3) board
Refer to diagnosis method (section 5.1.5)
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F06
(*)
Disconnection, open
circuit or short
circuit
in sensor C1/S2
Open circuit or short circuit
Automatic
recovery
1. Check Air heat exchanger temperature
sensor C1/S2
2. Check A3 board
Refer to diagnosis method (section 5.1.5)

F07
(*)
Disconnection, open
circuit or short
circuit
in outdoor unit heat
exchanger temp.
sensor C2/S1
Open circuit or short circuit
Automatic
recovery
1. Check Air heat exchanger temperature
sensor C2/S1
2. Check A3 board
Refer to diagnosis method (section 5.1.5)
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F08
(*)
Disconnection, open
circuit or short
circuit
in sensor TO/S4
Open circuit or short circuit
Automatic
recovery
1. Check outdoor air temp. sensor TO/S4
2. Check (A3) board
Refer to diagnosis method (section 5.1.5)
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F10
Disconnection, open
circuit or short
circuit
in water inlet temp.
sensor TW1/S8
Open circuit or short circuit
Automatic
recovery
1. Check water inlet temp. sensor TW1/S8
2. Check (A2/CWC2) board
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F12
(*)
Disconnection, open
circuit or short
circuit
in suction temp.
sensor TS/S3
Open circuit or short circuit
Automatic
recovery
1. Check suction temp. sensor TS/S3
2. Check A3 board
Refer to diagnosis method (section 5.1.5)

F29
EEPROM trouble
on A2 board
Reading/writing failure
Power supply
reset recovery
1. Check EEPROM of A2 board
2. Check A2 board
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F31
EEPROM trouble
on A3 board
Reading/writing failure
Power supply
reset recovery
1. Check EEPROM of A3 board
2. Check A3 board
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(*) see detail § 5.1.5