Daitsu FDLA-09, Installation, Operation & Service Manual

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SK2018 GLOBAL FDLA-V/P-AC-001
LED Display and Error Description
LED receiver in ABS housing with 0.5m (SGS14HFCA-01010101) or 1.8m (SGS14HFCA-01010102) pre-wiring
Complete Function PCB – S Type Control
Fan speed setting LED Display Condition
High speed Red LED On Normal
Medium speed Yellow LED On Normal
Low speed Green LED On Normal
For all units - Green LED
Error Description Blink Reason Remedy
Electrical heater failure
Green LED blinks 1 times,
stops for 3s
Only for unit with EH.
EH safety switch is
opened.
1. Change fan speed to high.
2. Replace the damaged EH safety
switch.
Indoor coil sensor 2
failure Green LED blinks 2 times,
stops for 3s Ti2 sensor unplugged or
damaged.
1. Check if Ti2 plug is connected or
not.
2. Check if sensor’s resistance is
correct or not.
Return air sensor failure
Green LED blinks 3 times,
stops for 3s Room sensor unplugged
or damaged.
1. Check if Tr plug is connected or not.
2. Check if sensor’s resistance is
correct or not.
Indoor coil sensor 1
failure Green LED blinks 4 times,
stops for 3s Ti1 sensor unplugged or
damaged.
1. Check if Ti1 plug is connected or
not.
2. Check if sensor’s resistance is
correct or not.
Indoor coil low
temperature protection Green LED blinks 5 times,
stops for 3s Water temperature is
lower than 3 ºC.
Check the water temperature.
Indoor coil over heat
protection Green LED blinks 6 times,
stops for 3s Water temperature is
higher than 70 ºC.
Check the water temperature.
Anti-frozen protection
Green LED blinks 11
times, stops for 3s When unit is standby,
Tr<2ºC.
Turn on unit to keep Tr higher than 5ºC.