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WL400
Manual Page 80
–
Revision: 10-23-2019
HOT WATER TROUBLESHOOTING INDEX
Hot Water Problems
1. Hot Water is not Hot 185° +/- 5°
2. Boiling of the Hot Tank at higher elevations
Also includes related instructions for
•
Disabling Sleep Mode
•
Resetting the Hot Tank Overloads or High Limit Safety
1.
Hot Water is not Hot (185
°
+/- 5
°
F)
The Hot temperature set point is 185
°
and is controlled by a thermostat on the side of the tank.
There are two resettable overloads or high limit safety above the thermostat on the side of the tank
that will trip to prevent damage to the unit if the tank is dry heated (turned on without water in it).
It typically takes 10 minutes for the 500W to heat the 1.2 Liter of room temperature (ambient) water
to the 185
°
F set point.
Possible Reason
Solution
Is unit in sleep mode?
If no water has been dispensed for 3 or more hours, unit goes into
sleep mode. Dispense hot water, wait 5 minutes, check
temperature.
If unit still does not heat
proceed to “No power to heater
elements” below.
See Disabling Sleep Mode Instructions that are included further
below in this Troubleshooting Section
No power to heater elements
Check that the Green Heater /
Compressor switch is on.
I = ON
Loose or improperly
connected wire(s) to the
heating element / hot tank.
Visually inspect wire leads gong to the hot tank; confirm proper
connections to the heating elements.
Hot tank life is 3-5 years, depending on usage.
*Typically, dealers swap out the hot tank at site, take back to the
shop to repair.
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