Led Display And Error Description - Daitsu FDHD-V-AC MOTOR Series Installation And Maintenance Manual

LED Display and Error Description

LED receiver in ABS housing with 0.5m
Fan speed setting
High speed
Medium speed
Low speed
Error Description
Electrical heater failure
Indoor coil sensor 2
failure
Return air sensor failure
Indoor coil sensor 1
failure
Indoor coil low
temperature protection
Indoor coil over heat
protection
Anti-frozen protection
(SGS14HFCA-01010101)
Complete Function PCB – S Type Control
LED Display
Red LED On
Yellow LED On
Green LED On
For all units - Green LED
Blink
Green LED blinks 1 times,
stops for 3s
Green LED blinks 2 times,
stops for 3s
Green LED blinks 3 times,
stops for 3s
Green LED blinks 4 times,
stops for 3s
Green LED blinks 5 times,
stops for 3s
Green LED blinks 6 times,
stops for 3s
Green LED blinks 11
times, stops for 3s
or 1.8m (SGS14HFCA-01010102)
Reason
Only for unit with EH.
EH safety switch is
opened.
Ti2 sensor unplugged or
damaged.
Room sensor unplugged
or damaged.
Ti1 sensor unplugged or
damaged.
Water temperature is
lower than 3 ºC.
Water temperature is
higher than 70 ºC.
When unit is standby,
Tr<2ºC.
pre-wiring
Condition
Normal
Normal
Normal
Remedy
1. Change fan speed to high.
2. Replace the damaged EH safety
switch.
1. Check if Ti2 plug is connected or
not.
2. Check if sensor's resistance is
correct or not.
1. Check if Tr plug is connected or not.
2. Check if sensor's resistance is
correct or not.
1. Check if Ti1 plug is connected or
not.
2. Check if sensor's resistance is
correct or not.
Check the water temperature.
Check the water temperature.
Turn on unit to keep Tr higher than 5ºC.
SK2019 EU FDHD-V/P-AC-001
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