Publicité
Maintenance
5 Maintenance
CAUTION
Do not attempt to repair this water heater
yourself. Call a service person for
assistance. Always turn off the power
supply to the heater prior to servicing or
draining the heater.
NOTICE
For most of these operations, the water will
have to be drained from the heater. For all
of these operations the cord should be
disconnected and the front cover removed.
5.1 Removing the cover
Remove knob (Fig. 9) which covers the Phillips
n
screw, and unscrew the Phillips screw.
The cover (Fig. 9) can now be removed by slightly
n
rotate. When reassembling, work in the opposite
way being careful to insert the tongue of the cover
into the slot.
5.2 Draining the heater
If the heater has been installed with flexible hoses:
Shut off the power supply.
n
Turn the heater upside down over a sink to drain
n
the water out of it.
5.3 Inspecting the anode rod
If the heater has been installed with flexible hoses:
The purpose of the anode rod (Fig. 11) is to protect the
tank against corrosion. It is critical that the anode rod
be inspected once a year to determine whether it
requires replacement. To access the anode rod, the
heating element must be removed (see Section 5.4
Removing the heating element). Upon inspection, the
anode rod surface should appear smooth. If the rod
surface appears pitted, bumpy, rusty, or if the rod is
missing completely, then it must be replaced.
To access the anode rod:
Remove the heating element (see Section 5.4
n
Removing the heating element).
12
Original anode rod sizes
Length 4.72" Diameter 0.787"
l
Certain installations may require more frequent
replacement of the anode rod:
recirculation applications
l
poor water quality
l
galvanic/electrolytic corrosion
l
high flow applications
l
In the event of poor water quality, we recommends
consulting a local water treatment professional for
water treatment options. Always ensure the water
heater is grounded. Damage resulting from poor water
quality or failure to replace the anode rod is not
covered under the manufacturer's warranty. For
additional questions, please call Technical Service.
5.4 Removing the heating element
Take out the power cord from the plastic part.
n
Use a cross screwdriver to unscrew the 3-in-1
n
cross screw on the heating element terminals of
red wire and blue wire .
Remove the wire nail and press the thermostat
n
capillary and the thermal cut-out capillary, and take
it out of the blind tube opening.
Loosen the 5 nuts and spring washer on the
n
heating element pressing plate with the sleeve, and
take out the heating element pressing plate.
Remove heating element.
n
Fig. 10
Publicité
