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3) Fault Codes
Type
Reminder
Solution
Display code
Buzzer
E1: Water
shortage
prompt
Fault light
flashes red
once per
second.
Filter CF
Filter flashes
blue once per
second.
When the user
runs water, the
machine will
buzz 3 times.
Once the inlet water
pressure returns to
normal, the water
shortage prompt is
automatically
reconciled, and the
machine resumes
regular operation.
E2: Water
leakage
protection
Fault light
flashes red
once per
second.
Filter CF
Filter flashes
blue once per
second.
Buzzer will
sound for 3
minutes.
Identify leakage
source. Once
corrected, the
product
automatically
returns to regular
operation.
E3:
Timeout
protection
for
continuous
pump
operation
Fault light
flashes red
once per
second.
Filter CF
Filter flashes
blue once per
second.
Buzzer will
sound 4 times.
Reconnect to the
power supply.
E4: Start-
stop
protection
for frequent
pumping
Fault light
flashes red
once per
second.
Filter CF
Filter flashes
blue once per
second.
Buzzer will
sound 5 times.
Reconnect to the
power supply.
E5: Low-
temperature
protection
The fault
light flashes
red once per
second.
Filter CF
Filter flashes
blue once per
second.
Buzzer will
sound 6 times.
Reconnect to the
power supply.
4) Water Quality Indicator Display
• The water quality status icon is blue when the pure water TDS value is ≤100PPM.
• The water quality status icon is purple when 100PPM<pure water TDS value ≤150PPM.
• The water quality status icon is red when the pure water TDS value >150PPM.
www.123filter.com | (678) 261-7611 | support@123filter.com Page 14
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