WL1000GF MAX
Manual
Page 51 Revision 10-7-2017
HOT WATER TROUBLESHOOTING INDEX
1. Hot Water is not Hot (85
°
+/- 3
°
C)
The Hot temperature set point is 85
°
C and is controlled by a thermistor in the well of the Hot Tank.
There are two resettable Overheat Devices or high limit safety side of the Hot 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 1.6 Litre of room temperature (ambient) water
to the 85
°
C set point.
Possible Reason
Solution
No power to heater elements
Check that the Red Heater and Compressor
switch is on.
Turn Red Heater and Compressor Switch on.
I = ON
Hot Tank Overheat Tripped
Overheat is a safety feature to
ensure the tank does not
overheat.
Overheat will “click” when pushed. The overheat is
automatically reset when pressed.
See Resetting the Hot Tank Overheat or High Limit Safety
Instructions that are included further below in this
Troubleshooting Section
Overheat Devices “open” on
Hot Tank
Turn Power off. Check OHM’s resistance across terminals on
each Overheat separately.
Good components will indicate a closed circuit or zero
OHM’s on the meter.
Replace components as necessary.
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 5 years, depending on usage.
Heating Coil not Working
Turn Power off; Drain hot tank; Use multi-meter to check
heater element for approximately 26 OHM’s resistance.
Hot tank must be empty if you are checking for continuity.
Replace Hot Tank as necessary.
