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Water Is Too Hot; Water Is Not Hot Enough - Bosch AQ 125BO LP Use And Care Manual

Outdoor water heater
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Troubleshooting
5. Service water valve See chapter 5.2 for intervals
and instructions.
6. ECO (overheat sensor) tripped due to overheating
re-ignite the appliance
10 minutes later. If it happens
again, contact your service person.
6.6
Water
is too hot
1. Check
gas type on right side panel rating plate.
NG is a natural gas unit and LP is for liquid propane.
2. Since the unit does not measure
incoming
water
temperature,
the output water may be warmer in the
summer than in the winter.
Use the slide control
to
lower output temperature
as outlined
in chapter 4.4.
• 3. Contact
your service person
if water temperature
does
not
lower
per
procedure
outlined
in
chapter 4.4.
• 4. Check the inlet water pressure.
For installation
on
a private well system with the use of a pressure tank,
the lowest
pressure
range setting
recommended
is
30-50
psi
(2.07
- 3.45
bar).
Confirm
that
the
pressure
tank is not water logged.
• 5. Service water valve See chapter 5.2 for intervals
and instructions.
• 6. ECO (overheat sensor) tripped
due to overheating
period
Re-ignite
the appliance
10 minutes later. If it
happens again, contact
your service person.
6,7
Water
is not hot enough
1. Adjust the temperature
per chapter
4.4.
2. Shut off installer supplied
cold water supply valve
(if none installed, install before proceeding).
Open all
hot water
taps
supplied
by the 125
BO. Wait
5
minutes
and check all taps. Water
running is a sign
of a plumbing
cross-over.
Consult a local plumber or
service person for help in correcting
plumbing
cross-
over.
• 3. While the heater is running with full hot water flow,
the flames should
be 3-4" tall off the burner bed. If
the flames
are not this tall, have the gas pressure
measured
per
chapter3.6
by
a
license
gas
technician
or your service person.
• 4. Service water valve See chapter 5.2 for intervals
and instructions.
18
8716473147

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