VARISTAR LHX 20
Maintenance and Repair
Cooling module 60714-050
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22
R2.1, May 10, 2012
7.2 Error messages
Message
Cause
Action at control unit
Remedy / Cause
F1
Sensor error sensor 1 (air outlet 1)
(break or short circuit on sensor F1)
not required
Inspect sensor
F2
Sensor error sensor 2 (air outlet 2)
(break or short circuit on sensor F2)
not required
Inspect sensor
F3
Sensor error sensor 3 (air entry 1)
(break or short circuit on sensor F3)
not required
Inspect sensor
F4
Sensor error sensor 4 (air entry 2)
(break or short circuit on sensor F4)
not required
Inspect sensor
F5
Sensor error sensor 5 (air entry )
(break or short circuit on sensor F3)
not required
Inspect sensor
F6
Sensor error sensor 6 (A21 = 1 or 2)
(break or short circuit on sensor F4)
not required
Inspect sensor
F7
Sensor error sensor 7
not required
Inspect sensor
F8
Motor fault M1 (fan)
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check motor;
replace if necessary
F9
Motor fault M2 (fan)
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check motor;
replace if necessary
F10
Motor fault M3 (fan)
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check motor;
replace if necessary
F11
Motor fault M4 (fan)
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check motor;
replace if necessary
F12
Motor fault M5 (fan)
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check motor;
replace if necessary
F13
Motor fault M6 (fan)
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check motor;
replace if necessary
F14
Battery version:
power supply error 1
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check power supply
(optional, 48 V version only)
F15
Battery version:
power supply error 2
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check power supply
(optional, 48 V version only)
F16
Air exit temperature limit value
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check cooling water loop,
check water control valve
F17
Air entry temperature limit value
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check cooling water loop,
check water control valve
F18
Water inlet temperature limit value
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check cooling water loop,
check water control valve
F19
OPTION: Door open error message
Acknowledge with the DOWN button, if
parameterised to hand reset.
Close cabinet door
F20
Maximum cooling error message
(digitaI input)
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check cooling water loop,
check water control valve
F21
Maximum cooling
Acknowledged automatically
Check cooling water loop, water
control valve and droplet sepa-
rator
F22
OPTION: Water leakage error message
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check water loop
F23
OPTION: Humidity limit value
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check cooling water loop,
check water control valve
F24
OPTION: External water chiller error mes-
sage
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check water chiller device
F25
OPTION: Water exit temperature limit
value
Acknowledge with the DOWN button, if
parameterised to hand reset.
Check cooling water loop,
check water control valve
EP
Loss of data in parameter memory
Interrupt power supply
Repair control board
Summary of Contents for 60714-050
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