Loading ...
Loading ...
Loading ...
49-6000121 Rev. 0
Troubleshooting
TROUBLESHOOTING
Before you call for service....
Save time and money! Review the chart below first and you may not need to call for service.
CAUTION
For your safety, DO NOT attempt repair of electrical wiring, controls, heating elements or
other safety devices. Refer repairs to qualified service personnel.
Problem Possible Causes
What To do
OPERATION AND PERFORMANCE
Not enough or no hot
water
Water temperature may
be set too low
• See the Water Temperature Adjustment and Water Heater
&DSDFLW\VHFWLRQV3DJHV
Hot water usage pattern
exceeds the capability of
the water heater in current
mode
• Wait for the water heater to recover.
Cold water inlet
temperature may be
colder during the winter
months
• This is normal. The colder inlet water takes longer to heat.
• Consider increasing the set temperature as described in the
Water Temperature Adjustment section.
Leaking or open hot
water faucets
• Make sure all faucets are closed.
Long runs of exposed
pipe, or hot water piping
on outside wall
• Insulate piping.
Water Connections to
unit reversed
• Correct piping connections.
Recirculating System
Interference (if installed)
• Check flow rate is not set too high.
• Insulate piping
Check installation
is south facing with
minimized shading
• Correct installation to face south and minimize shading
Water is too hot Water temperature is set
too high
• See the Water Temperature Adjustment section.
Mixing valve has failed • Contact your local installer, plumbing contractor, or
previously agreed upon service agency.
OTHER
Water dripping down the
outside of the heater
Hot/Cold water connections
or other parts have loosened
• Tighten the loose connections. This should only be done by a
qualified service person.
Combined non-return/
safety valve producing
popping sound or
draining
Pressure buildup caused
by thermal expansion to a
closed system
• This is an unacceptable condition and must be corrected. See
7KHUPDO([SDQVLRQVHFWLRQRQSDJH'RQRWSOXJWKHUHOLHIYDOYH
outlet. Contact your local installer, plumbing contractor, or previously
agreed upon service agency to correct this.
The combined non-return/
safety valve will open at 72
PSI
Reduce system water pressure
Water Not Filling Heater Cold Water supply is off Check all valves to ensure system can be filled with water
Combined non-return/safety
valve
The combined non-return/safety valve has a check valve integrated.
If installed backwards, flow can be prevented from filling the water
heater.
Loading ...
Loading ...
Loading ...