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Troubleshooting

Page 18

TROUBLESHOOTING

M

ECHANICAL

These instructions are intended for use by qualified personnel who are specifically trained and experienced in the installa-

tion 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

CAUSE

SOLUTION

Harmonics, or whining noise

*Debris or restriction in system............

Locate the restriction and remove. Flush system and clean.

Low flow...............................................

Scale forming in heat exchanger - clean heat exchanger and 
check pool pH and total alkalinity.

Outlet pipes hot to touch

Low flow..............................................

Scale forming in heat exchanger - clean heat exchanger and 
check pool pH and total alkalinity.

Heater going on and off

Dirty filter..............................................

Clean or replace filter.

continuously

Low water level in pool........................

Raise water level.

External bypass setting out of
adjustment............................................

Adjust bypass.

*Pressure switch out of adjustment.....

Adjust pressure switch.

Liming or scale forming in

Pool water............................................

See Water Chemistry section.

exchanger

Bypassing too much water...................

Inspect bypass for movement, if no movement, replace.

Sooting

High flow rates.....................................

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 14.)

*Air starvation.......................................

Refer to installation instructions.

*Improper venting................................

Follow recommended installation instructions.

*Insects or debris clogging

burner intake ports.............................

Clean burners.

Pilot outage

Low gas pressure................................

Adjust gas pressure.

Restricted pilot.....................................

Clean pilot.

Weak pilot generator............................

Replace pilot.

Yellow lazy flame

Low gas pressure................................

Adjust gas pressure.

*Insects or debris clogging
burner intake ports...............................

Clean burners.

Outer jacket very hot

*Broken refractory caused by

(paint blistered) 

shipping damage or improper
combustion.........................................

Replace refractory panels.

Excessive sooting of heat exchanger..

Determine cause of sooting & correct.

Takes too long to heat

Under-sized heater...............................

Calculate heating capacity of heater:

pool or spa

Htr. output(BTUH)

Pool gallonage x 8.33

This does not take into account heat loss due  to weather.

Filter not running long enough.............

Reset time clock.

Dirty filter..............................................

Clean filter.

Gas line or meter undersized...............

Refer to installation instructions.

*Debris in gas line................................

Remove debris or blow out gas line.

Leaking at well

Overacid...............................................

Replace well and maintain proper water chemistry.

Over chlorination....................................

Check location of chlorinator and backflow preventer.

Leaking at heat exchanger

Overacid...............................................

Replace heat exchanger and maintain proper water chemistry. 

Over chlorination....................................

Check location of chlorinator and backflow preventer.

Gasket brittle and leaking -

Heater running after pump shuts off....

See Pressure Switch Adjustment.

(overheated)

Refractory damage..............................

Replace refractory.

Sooted heater.......................................

Determine cause of sooting and correct.

* Indicates symptom which usually occurs on initial start-up.

Summary of Contents for 130A

Page 1: ...IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas s...

Page 2: ...ined from your pool or spa builder accredited pool shop or chemical supplier for the correct levels for your water AUTOMATIC CHLORINATORS CHEMICAL FEEDERS All chemicals must be introduced and complete...

Page 3: ...a fire or explosion causing property damage bodily injury or death Should you have any problems understand ing the warnings and instructions in this manual STOP and get help from a qualified installer...

Page 4: ...rd for Gas Fired Pool Heaters The heater can be used either indoors or outdoors If necessary the top of the heater can be changed after installation to accommodate indoors or out doors WARNING USE OF...

Page 5: ...a level base such as cementable slab cement blocks or another non combustible surface An alternate method for providing a base for com bustible floors is illustrated Heaters may not be installed on c...

Page 6: ...UNITS ONLY In areas where high winds are frequent it may be neces sary to locate the heater a minimum of 3 from high vertical walls or install a wind break so the heater is not in direct wind current...

Page 7: ...B149 2 As much as possible avoid long horizontal runs of vent pipe and too many elbows If installation requires hori zontal runs the vent pipe must have a minimum of 1 4 in per ft rise and should be...

Page 8: ...plied field supplied Vent Pipe Drafthood Heater 5 MIN 2 MIN 2 MIN Vent Cap 10 or Less CAUTION THE HEATER AND ITS MANUAL SHUT OFF VALVE MUST BE DISCONNECTED FROM THE GAS SUPPLY DURING ANY PRESSURE TEST...

Page 9: ...d 3 The outlet of the heater is plumbed to the return line to the pool or spa The pump filter and heater are thus plumbed in series Plumbing from the heater back to the pool or spa must not have any v...

Page 10: ...e valve as an auxiliary bypass valve AUXILIARY BYPASS VALVE ADJUSTMENT To set bypass With clean filter adjustment is made by feeling the inlet and outlet pipes at the heater Outlet pipes should be sli...

Page 11: ...ransformer for 120 VAC input power hookup Heater must be electrically grounded and bonded in accordance with local codes or in the absence of local codes with the latest edition of the National Electr...

Page 12: ...mit HI Limit In Out In Out Thermostat Manual Switch Switch Switch AGS Water Press Gas Valve Roll Out Valve Pilot Generator To Firemans Switch field installed Optional BK BK R Y BK TH PP W R PP TH V BK...

Page 13: ...y gas control which has been under water 1 STOP Read the safety information above 2 Set the thermostat to the lowest setting 3 Turn off all electrical power to the appliance 4 This appliance is equipp...

Page 14: ...to Off unless knob is pushed in slightly Do not force 6 Wait 5 minutes to clear out any gas If you then smell gas STOP Follow B in the safety information above If you don t smell gas go to the next st...

Page 15: ...FOR FREEZE PROTECTION WHEN HEATER IS USED DURING FREEZ ING WEATHER CARE MUST BE TAKEN TO AVOID FREEZE UPS CONTINUOUS PUMP OPERATION IS A MUST ADDITIONAL PROTECTION MAY BE REQUIRED THE HEATER IS NOT WA...

Page 16: ...RATE MEETS THE REQUIREMENTS LISTED IN TABLE 6 WATER PRESSURE SWITCH ADJUSTMENT Figure 24 Water Pressure Switch Adjustment 1 With pump and heater on turn adjustment knob clock wise until a click is hea...

Page 17: ...am of heater 3 Remove front door 4 Disconnect gas line from gas valve 5 Remove 2 screws that mount burner tray to unit and 2 screws that secure gas valve to jacket 6 Disconnect wires that terminate at...

Page 18: ...move 2 screws that mount the igniter to the burner tray 3 Remove igniter from burner tray 4 Reverse above procedure to reinstall Figure 29 Direct Spark Igniter Spark Gap 0 15 0 18 PILOT REMOVAL AND CL...

Page 19: ...from the heater and wash with a garden hose making sure soot is removed from spaces between fins 5 Reverse above procedure to reinstall NOTE In extreme cases it may be necessary to do high pressure cl...

Page 20: ...gure 14 Air starvation Refer to installation instructions Improper venting Follow recommended installation instructions Insects or debris clogging burner intake ports Clean burners Pilot outage Low ga...

Page 21: ...across each high limit and remove jumper Replace thermostat Replace high limit that prevented from firing Jump across both TH wires on gas valves Check gas supply gas line size gas pressure Also chec...

Page 22: ...White Negative Red Positive 2 Pilot Load 500mV 100 Pilot generator connected to valve Power applied to pilot solenoid TP Thermopile Robertshaw PP Power Pile Honeywell TH TP Common Invensys TH PP Comm...

Page 23: ...o run at its normal flow rate Turn knob to a desired temperature zone Yes Yes Yes No No No Turn switch ON After 6 seconds does the igniter spark Does the burner tray light Does the burner tray stay li...

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