DISABLING ENERGY SAVING SLEEP MODE
All WL3FW Water Treatment Systems come from the factory with Energy Saving Sleep Mode
enabled to meet the Energy Star Certification requirements. Energy Saving Sleep Mode disables the
heater circuit if the unit has not been used for a continuous 3 hour period.
Selecting any button "wakes up" the WL3FW Water Treatment System and turns the heater circuit
back on. The hot tank will typically take less than 10 minutes to heat the water from ambient to the
87°C (189°F) set point.
Unplug Power Cord and remove Top Cover to access front Printed Circuit Board (PCB).
Pin 3 on Dip Switch 1 (DP1) controls Energy Saver or Heater Sleep Mode on the WL3FW.
Dip Switch 1
(DP1)
WL3 FW Manual
Energy Saver (Heater Sleep) is controlled by Pin 3
Shown in below in the lower NSL (No Sleep) Position
= Energy Saver OFF = Heater Enabled All the Time
Energy Saver Mode (Heater Sleep)
Unit comes set with energy saver or heater sleep
mode enabled (SL). Heater will be disabled after 3
hours of machine inactivity (no icons selected).
Turn Energy Saver off by moving pin 3 on DP1
located on front printed circuit board (PCB) to the
down NSL(No Sleep) position.
Ensure DP1 Pin 1 is up in the CAH position or
heater will be disabled.
Cold, Ambient, Hot (CAH) or Cold, Ambient (CA)
WL3 hot water function can be disabled and the unit
converted from a Cold, Ambient, Hot, Extra-Hot
(CHA) to a Cold and Ambient (CA) only by moving
pin 1 on dip switch 1 (DP1) located on front printed
circuit board (PCB) to CA position.
Page 58 - Revision: EU 17-09-2020
Need help?
Do you have a question about the WL3FW FIREWALL and is the answer not in the manual?
Questions and answers