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1. HOW TO REPAIR AN
ELECTRIC WATER
HEATER
Air Central of The Carolinas
A I R C E N T R A L O F T H E C A R O L I N A S . C O M

2. DAMAGED WATER HEATER
When you are without hot water, that situation
represents a setback very annoying. There are
elements of water heaters that are easy to repair and
replace. Water heaters with traditional linear
voltage controls have common controls and elements
of 120, 208 and 240 volts.

3. First, you need to check the
electrical panel to make sure that
the switch is in the on position.
Check if fuses are installed securely
and not blown. Reset the switch
again to the ON position. Replace
the damaged fuses and wait an hour
for the water to warm. If water does
not warm up, you must continue to
inspect the heater.
CHECK ELECTRICAL PANEL

4. DISCONNECT POWER SUPPLY
If you do any electrical work on the
electric water heater, you must
disconnect the power supply, to
avoid hazards associated with
electricity. You should also shut off
the water and open the hot water
tap, to reduce the pressure and work
better. You must remove the fuses
and ensure or block the electric
panel.

5. RUSTY CABLES
The oxidation is unavoidable,
even when the wiring is
isolated. This problem can
cause potentially fatal electric
shocks. Also, the rusty wiring
may cause warming and
melting of isolation; it can also
generate burns with fire risk.
The charred areas indicate a
short circuit. Replace the
burned and rusted wiring.

6. Resistance is the most technical element of
the electric water heater. If the electrical
resistance is damaged, we recommended that
an expert in AC Repair in Matthews NC
carry out this repair. This part should not be
a problem, as the water heaters come with
isolation as default.
Damaged Resistance

7. Usually, the water heater emits
strange sounds. You should check if
the tank has deposits of lime,
mineral, silt, and other
accumulations. Check if the heating
electrodes also have these
accumulations. Whistling sounds
may also be the result of the buildup
of lime in electrodes. Remove and
clean them when you hear this kind
of noise.
Noises in the Water Heater

8. AIR CENTRAL OF THE
CAROLINAS
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