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TROUBLESHOOTING
Mechanical
These instructions are intended for use by qualified personnel who are specifically trained and experienced in
the installation of this type of heating equipment and related system components. Installation and service per-
sonnel 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............
Outlet pipes hot to touch
Heater going on and off
continuously
Liming or scale forming in
exchanger
Sooting
Pilot outage
Yellow lazy flame
Outer jacket very hot
(paint blistered)
Takes too long to heat
pool or spa
Leaking at well
Leaking at heat exchanger
Gasket brittle and leaking -
(overheated)
* Indicates symptom which usually occurs on initial start-up.
CAUSE
Low flow...............................................
Low flow..............................................
Dirty filter..............................................
Low water level in pool........................
External bypass setting out of
adjustment............................................
*Pressure switch out of adjustment.....
Pool water............................................
Bypassing too much water...................
High flow rates.....................................
*Air starvation.......................................
*Improper venting................................
*Insects or debris clogging
burner intake ports.............................
Low gas pressure................................
Restricted pilot.....................................
Weak pilot generator............................
Low gas pressure................................
*Insects or debris clogging
burner intake ports...............................
*Broken refractory caused by
shipping damage or improper
combustion.........................................
Excessive sooting of heat exchanger..
Under-sized heater...............................
Filter not running long enough.............
Dirty filter..............................................
Gas line or meter undersized...............
*Debris in gas line................................
Overacid...............................................
Over chlorination....................................
Overacid...............................................
Over chlorination....................................
Heater running after pump shuts off....
Refractory damage..............................
Sooted heater.......................................
SOLUTION
Locate the restriction and remove. Flush system and clean.
Scale forming in heat exchanger - clean heat exchanger and
check pool pH and total alkalinity.
Scale forming in heat exchanger - clean heat exchanger and
check pool pH and total alkalinity.
Clean or replace filter.
Raise water level.
Adjust bypass.
Adjust pressure switch.
See Water Chemistry section.
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 Figure 15.)
Refer to installation instructions.
Follow recommended installation instructions.
Clean burners.
Adjust gas pressure.
Clean pilot.
Replace pilot.
Adjust gas pressure.
Clean burners.
Replace refractory panels.
Determine cause of sooting & correct.
Calculate heating capacity of heater:
Htr. output(BTUH)
Pool gallonage x 8.33
This does not take into account heat loss due to weather.
Reset time clock.
Clean filter.
Refer to installation instructions.
Remove debris or blow out gas line.
Replace well and maintain proper water chemistry.
Check location of chlorinator and backflow preventer.
Replace heat exchanger and maintain proper water chemistry.
Check location of chlorinator and backflow preventer.
See Pressure Switch Adjustment.
Replace refractory.
Determine cause of sooting and correct.
27
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