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Before You Call For Service…
Troubleshooting Tips
Save time and money! Review the chart on this page first and you may not need to call for service.
Problem Possible Causes What to Do
Rumbling noise Water conditions in your location
caused a build up of scale or mineral
deposits on the heating elements.
Remove and clean the heating elements.
Contact a qualified service technician.
Relief valve pro-
ducing popping
noise or draining
Pressure build up caused by thermal
expansion in a closed system.
This is an unacceptable condition and
must be corrected. Contact the water
supplier or plumbing contractor on how
to correct this. DO NOT plug the relief
valve outlet.
Not enough or no
hot water
Water usage may have exceeded the
capacity of the water heater.
Wait for the water heater to recover after
an abnormal demand.
A fuse is blown or a circuit breaker
tripped.
Replace fuse or reset circuit breaker.
Electric supply may be off. Make sure electric supply to water heater
and disconnect switch, if used, are in the
ON position.
The thermostat may be set too low. See the Temperature regulation of the
water heater section of this manual.
Leaking or open hot water faucets. Make sure all faucets are closed.
Electric service to your location may
be interrupted.
Contact the local electric utility.
Improper wiring. See the Installing the water heater section
of this manual.
Manual reset limit (ECO). See the Temperature regulation of the
water heater section of this manual.
Cold water inlet temperature may be
colder during the winter months.
This is normal. The colder inlet water
takes longer to heat.
Top element defective (no hot water) Replace element.
Bottom element defective (small
quantity of hot water)
Replace element.
Water is too hot The thermostat is set too high. See the Temperature regulation of the
water heater section of this manual.
Covers and / or insulation missing. Reinstall covers and insulation.
CAUTION: For your safety DO NOT attempt repair of electrical wiring, thermostats, heating elements or other safety
devices. Refer repairs to qualified service personnel.
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