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SECTION 5 - TROUBLESHOOTING
MECHANICAL
IMPORTANT NOTICE These instructions are intended for the use of qualified personnel who are specifically trained and experienced in the
installation of this type of heating equipment and related system components. Installation and service personnel may be required by some
states to be licensed. Persons not qualified shall not attempt to install this equipment nor attempt repairs according to these instructions.
PROBLEM
Harmonics, or whining noise *Debris or restriction in system..............
Heater going on and off
continuously
Valve opens but no flame
visible
Flame visible for a split
second
Liming or scale forming in
exchanger
Sooting
Yellow lazy flame
Outer jacket very hot
(paint blistered)
Hard lighting at startup
Takes too long to heat
pool or spa
Leaking at well
Leaking at heat exchanger
Gasket brittle and leaking -
(overheated)
Combustion fan not running Fan relay..............................................
"Fan 5 min Delay" signal or
"Fan Lockout" signal
Heater turns on for less
than 4 seconds
(no display error)
* Indicates symptom which usually occurs on initial start-up.
CAUSE
*Debris in gas line..................................
Low flow.................................................
Dirty filter................................................
Low water level in pool..........................
External bypass setting out of
adjustment............................................
Manifold pressure too low..................
Ignition not being sensed....................
Pool water............................................
Bypassing too much water...................
High flow rates.....................................
*Air starvation.........................................
*Improper venting...................................
*Insects or debris clogging
burner intake ports...............................
Air intake clogged or incorrect
fan operation..........................................
*Insects or debris clogging
burner intake ports.................................
*Broken refractory caused by
shipping damage or improper
combustion..........................................
Excessive sooting of heat exchanger....
Igniter faulty.....................................
Under-sized heater...............................
Filter not running long enough.............
Dirty filter..............................................
Gas line or meter undersized...............
Overacid...............................................
Overacid...............................................
Heater running after pump shuts off....
Refractory damage..............................
Sooted heater.......................................
Fan........................................................
Burned motor ......................................
Air pressure switch...............................
Wiring....................................................
Incorrect supply wiring..........................
PC Board short.....................................
Ignition not sensed........................... Clean igniter with wire brush.
SOLUTION
Locate the restriction and remove. Flush system and clean.
Remove debris or blow out gas line.
Scale forming in heat exchanger - clean heat exchanger and
check pool pH and total alkalinity.
Clean or replace filter.
Raise water level.
Adjust bypass.
Increase manifold pressure (turn clockwise slightly).
Replace ignition wire. Check connections.
See Water Chemistry on page 2.
Inspect bypass for movement, if no movement, replace.
Reduce by adding manual bypass valve.
Adjust manual bypass valve until heater outlet water
temperature is between 105°F and 110°F.
Refer to installation instructions.
Follow recommended installation instructions.
Clean burners.
Check for debris upstream of fan intake. Verify Blower Suction
Pressure, see page 5, is within range.
Clean burner.
Replace refractory panels.
Determine cause of sooting & correct.
Replace igniter
Calculate heating capacity of heater or refer to heater sizing chart.
Heating Capacity =
This does not take into account heat loss due to weather.
Reset time clock.
Clean filter.
Refer to installation instructions.
Replace well and maintain proper water chemistry.
Replace heat exchanger and maintain proper water chemistry.
See Pressure Switch Adjustment.
Replace refractory.
Determine cause of sooting and correct.
Replace fan relay.
Loose connection or failed motor.
Incorrect wiring, replace blower.
Replace air switch.
Check for loose or broken (verify continuity) wiring/ground/ignition wire.
Check incoming power for correct voltage. There should be
no power on the neutral line.
Replace board if no strength signal is being detected.
42
Htr. output(BTUH)
Pool gallonage x 8.33
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