40
GENERAL
TROUBLESHOOTING
PROBLEM
SOLUTIONS
TEMPER
ATURE
and
AMOUNT
OF
H
O
T
W
ATER
It takes a long
time
to
get hot water at the
fi
xtures. (DHW with
Radiant Heating)
The water is not hot
enough.
• The
time
it takes to deliver hot water fr
om
the boiler to your
fi
xtures depends on the length of piping between the two. The longer
the distance or the bigger the pipes, the longer it will take to get hot
water.
The water is too hot. • Is the set t
empe
rature set too high?
The hot water is not
available when a
fi
xture is opened.
(DHW with Radiant
Heating)
•
Compa
re the
fl
ow and t
empe
rature.
• Check cross
plumbing
between cold water lines and hot water lines.
• Is the gas supply valve fully open?
• Is the gas line sized properly?
• Is the gas supply pressure within
specified
limits?
• Is the set t
empe
rature set too low?
The hot water turns
cold and stays cold.
• Make sure the unit has 120 VAC, 60 Hz power supply.
• Is the power bu
tt
on on the controller or inside the boiler turned
on?
• Is the gas supply valve fully open?
• Is the water supply valve fully open?
• Is the
fil
ter on the
system clean
?
• Is the hot water
fi
xture su
fficie
ntly open to draw at least 0.5 GPM
(1.9
L/min)
through the boiler?
• Is the unit frozen?
• Check for cross
plumbing
between the hot and cold water lines.
Fluctua
tion
in hot
water t
empe
rature.
• Is the
fl
ow rate enough to keep the boiler running?
• Is the gas supply valve fully open?
• Is the
fil
ter on the
system
clean?
• Are the
fi
xtures clean of debris and obs
tructions?
• Is the
fil
ter on the
system
clean?
• Is the gas line sized properly?
• Is the supply gas pressure within
specified
limits?
• Check for cross c
onnection
between cold water lines and hot water lines.
Summary of Contents for Smart 115 PLUS
Page 49: ...49 Boiler Notes ...
