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Troubleshooting...
Before you call for service....
Save time and money! Review the chart below first and you
may not need to call for service.
Problem
Water heater makes
sounds
Water heater is
making the room
cooler
Water dripping down
the outside of the
heater.
Not enough or no hot
water
Possible Causes
A fan is used to move air
through the system.
Room is not vented
properly or is too small.
Heat is removed from the air
to heat the water
Condensate drain is
clogged.
Hot/Cold water connections
are not tightened.
Water temperature may
be set too low.
Hot water usage pattern
exceeds the capability of the
water heater in current mode
Water usage may have
exceeded the capacity
of the water heater.
Ambient temperature is
too low
Cold water inlet temperature
may be colder during the
winter months.
Leaking or open hot water
faucets.
Long runs of exposed pipe,
or hot water piping on
outside wall.
Not enough clearance to
allow air to circulate for the
heater pump.
Room size is not appropriate • If room size is less than 10' x 10' x 7' (700 cu. ft.), install
for water heater.
A fuse is blown or a circuit
breaker tripped.
electric service to your home
may be interrupted.
Improper wiring.
manual reset limit (TCO).
Water connections to unit
reversed.
electric supply may be off.
What To do
•
Some amount of fan sound is normal. If you hear an
abnormal sound or the sound level seems unusually loud,
then contact service.
•
If the room is smaller than 10' x 10' x 7' (3m x 3m x 2.1m),
then it must have a louvered door or other means to allow
air exchange with surrounding rooms.
•
This is normal
•
Clear out any debris in the drain port on the unit.
•
Tighten the inlet and outlet pipe connections.
•
See About the Water Temperature Setting section.
• Change to different mode
•
Wait for the water heater to recover after an abnormal
demand
• For the water heater to work properly, its location needs
to have a temperature of 32° to 150°F for Standard
Electric mode and 45° to 120°F for all other modes.
•
This is normal. The colder inlet water takes longer to heat.
•
Make sure all faucets are closed.
• Insulate piping.
• Make sure unit is 7" away from the wall.
louvered door or similar ventilation.
•
Replace fuse or reset circuit breaker.
•
Contact the local electric utility.
•
See the Installation Instructions section.
•
See the Safety Control section, see page 4.
• Correct piping connections.
•
Make sure electric supply to water heater is correct
disconnect switch, if used, are in the ON position.
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