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the power to the heater at the breaker. Unplug
the pump relay from the power circuit board.
Restore power to the heater. Press the SELECT
key to set the heater to 'POOL'.
The heater
must not come on.
If the heater does start the
firing sequence, immediately press the SELECT
key to turn the heater off, disconnect power to
the heater, plug the pump relay into the power
circuit board and restore the power to the heater.
Refer to Section 7.6 "Adjusting the Pressure
Switch" for procedures on adjusting the pressure
switch. When the adjustment has been checked
and verified, press the SELECT key to turn the
heater off, disconnect power to the heater, plug
the pump relay into the power circuit board and
restore the power to the heater.
3.
Return the pool temperature control to the
desired temperature. Repeatedly depress the
MODE key until the indicator at the top of the
display shows 'POOL SET'. Then use the UP
and DOWN keys to set the heater to the desired
temperature.
4.
Inspect the electrical controls, specifically the
following:
a. High limit controls.
b. Pressure switch.
c. Temperature/Ignition control.
d. Automatic gas valve.
5.
Inspect the venting system for blockage, leakage,
and corrosion.
6.
Check for spider webs in or other obstructions in
the main burner orifices especially at Spring
start-up. Clean with wire brush if necessary.
7.
Conduct a normal operating cycle and observe
that the sequence proceeds as intended.
Caution
For your safety, when starting the heater, keep
your head and face away from the lower firebox
opening to prevent any risk of personal injury.
8.
Inspect the external surfaces of the heat ex-
changer tubes for black carbon soot buildup by
placing a mirror between and under the burners
when the heater is firing. Remove any soot that
has collected on the tubes, and correct the cause.
NOTE:
After installation and first start-up,
check the heat exchanger for black carbon soot
buildup after the following periods of operation: 24
hours, 7 days, 30 days, 90 days, and once every 6
months thereafter.
Proper flames appear:
a. Blue in color.
b. 1 to 4 inches (25 to 102mm) high above
burner surface.
9.
Perform a temperature rise test in accordance
with Section 7.6.
10. If the heater is equipped with a pressure relief
valve, check for corrosion in and around the
valve. With the filter pump on, lift the release
lever on the top of the valve to make sure that
water runs freely through it. If corrosion is found,
replace the pressure relief valve. When replacing
the valve, be sure that the pump is off. Install the
valve so that the discharge is directed away from
any area that may be damaged by water.
NOTE
: Keep this manual in a safe place for
future reference by you and your professional techni-
cian when inspecting and servicing the heater.
SECTION 9.
Troubleshooting
9.1 General Heater Troubleshooting
The following table lists some of the more
common problems, causes and solutions encountered
when running the heater. Most problems occur when
the heater is being started for the first time after
installation or at Spring start-up. Careful installation
and maintenance will help insure years of trouble free
use from your Lite2 pool heater.
Figure 23. Main Burner Flame.
