WL800
Manual
Page 63 – Revision 12‐11‐2018
FAULT CODE INDEX
1. UV LED Blinking – UV Error
2. Heating and Service LED Blink Simultaneously – Hot Water Sensor Error
3. Chilling and Service LED Light Blink Simultaneously – Cold Water Sensor Error
4. Heating and Service LED Alternate Blinking –Low Water Level Error
5. Chilling and Service LED Alternate Blinking – Full Water Level Error
6. Heating, Chilling and Service LED Sequentially Blink
7. Service LED is On – Leak Detection Probe Has Detected Water
UV LED Blinking – UV Error
Possible Reason
Solution
UV Lamp or Pump is Not
Operational
Check Connections to UV Lamp / Pump Assembly. Replace
UV Lamp / Pump Assembly as needed.
Heating and Service LED Blink Simultaneously – Hot Water Sensor Error
Possible Reason
Solution
Sensor not connected or is not
operating within set
parameters
1.
Check connection to Hot water sensor.
2.
Check OHMS reading – above 900K indicates open
sensor. Below 5.2K indicates sensor short.
Replace Hot Water Sensor.
Chilling and Service LED Light Blink Simultaneously – Cold Water Sensor Error
Possible Reason
Solution
Sensor is not connected or is
not operating within set
parameters
1.
Check connection to Cold Water Sensor.
2.
Check OHMS reading – above 690K Indicates Open
Sensor, below 7.3K indicates Sensor Short.
Replace Cold Water Sensor.
