AERMEC FW-R Series Technical And Installation Manual page 33

FAULT IDENTIFICATION
PROBLEM
LOW SUPPLY AIR FLOW
DOES NOT HEAT
ELECTRIC HEATER DOES NOT OPERATE
INTERMITTENT OPERATION
DOES NOT COOL
THE FAN DOES NOT ROTATE
For anomalies not detailed immediately call the Service Assistance.
ALARMS
The air conditioner features a self-protection program that, in the event of anomalous situations, automatically shuts down unit opera-
tion and places it in pre-alarm status. In such a case, there are two resolution possibilities:
a) If the pre-alarm persists for a time greater than the maximum programmed for the fault type, the unit goes to Alarm status.
b) If the fault is no longer present, the pre-alarm status ceases and the unit can resume operation, in accordance with the safety
time required by the compressor.
ALARM DISPLAY
In the event that the air conditioner goes to Alarm status, the fault type will be automatically displayed by a special sequence of yellow
and red light flashes on the wall receiver LED.
The following alarm codes are possible:
❍ Yellow LED: flashes cyclically 5 times, then goes out for 5 seconds.
❒ Red LED: lights up when the yellow LED goes out, thus indicating a specific code.
ALARM CODES TABLE
Led display
❍❒ ❍ ❍ ❍
❍ ❍❒ ❍ ❍
❍❒ ❍❒ ❍ ❍
❍❒ ❍ ❍❒ ❍
❍ ❍❒ ❍❒ ❍
❍❒ ❍❒ ❍❒ ❍
❍ = Yellow LED on
❒ = Red LED on
PROBABLE CAUSA
WRONG FAN SPEED SETTING ON THE WIRED PANEL
DIRTY FILTER
AIR FLOW OBSTRUCTION
(INTAKE AND/OR OUTLET)
WRONG PANEL SETTING
LACK OF CURRENT
MANUAL RESET SAFETY THERMOSTAT HAS
OPERATED
ELECTRIC HEATER INCORRECTLY INSTALLED
FILTER DIRTY
AIR FLOW OBSTRUCTION
(INTAKE AND/OR OUTLET)
AUTOMATIC RESET SAFETY THERMOSTAT HAS
OPERATED
WRONG CONTROL PANEL SETTING
LACK OF CURRENT
Alarms
Ambient sensor
❍
Defrost sensor
❍
Water sensor
❍
Coil overheat
❍
Anti-frost
❍
External contact
❍
SOLUTION
SELECT THE FAN SPEED ON THE WIRED PANEL
CLEAN THE FILTER
REMOVE THE OBSTRUCTION
SET CONTROL PANEL
CHECK THE ELECTRICAL POWER SUPPLY
CALL THE SERVICE ASSISTANCE
CHECK THE CORRECT POSITION OF THE
THERMOSTATS
CLEAN THE FILTER
REMOVE THE OBSTRUCTION
IF THE PROBLEM PERSISTS CONTACT THE SERVICE
ASSISTANCE
SET CONTROL PANEL
CHECK THE ELECTRICAL POWER SUPPLY
FWR 1406 - 5388000_02
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