Trouble Shooting Guide; Mechanical - Raypak P-R185A to P-R405A, C-R185A to P-R405A, P-R185AL to P-R405AL, C-R185AL to C-R405AL, RP2100 Installation And Operating Instructions Manual

SECTION 5 / TROUBLE SHOOTING GUIDE
MECHANICAL (FOR QUALIFIED SERVICE PERSONNEL ONLY)
IMPORTANT NOTICE These instructions are primarily intended for the use of qualified personnel 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
Heater going on and off
continously
Liming or scale forming on
heat exchanger
Sooting
Pilot outage
Yellow lazy flame
Outer jacket very hot
(paint blistered)
Takes long time to heat
pool or spa.
Liming
Leaking at well.
Leaking at heat exchanger.
Gasket brittle and leaking -
(overheated).
Combustion fan not running
(* Indicates symptom usually occurs on initial start-up.)
CAUSE
U.G. inoperative....................................
*Debris or restriction in system............
*Debris in gas line.................................
Low flow..............................................
Dirty filter..............................................
Low water level in pool........................
External bypass setting out of
adjustment............................................ Adjust bypass
*Pressure switch out of
adjustment............................................. Adjust pressure switch
Pool water............................................. Recommended pH should be between 7.4 and 7.8
High flow rates.....................................
U.G. Inoperative....................................
*Air starvation.......................................
*Improper venting..................................
*Insects or debris clogging
burner intake ports............................... Clean burners.
Low gas pressure................................
Restricted pilot......................................
Weak pilot generator.............................
Low gas pressure................................
*Insects or debris clogging
burner intake ports............................... Clean burners.
*Broken refractory caused by
shipping damage or improper
combustion..........................................
Excessive sooting of heat
exchanger...........................................
Calculate temperature in °/hr................
Filter not running long enough............... Reset time clock.
Dirty filter............................................... Clean filter.
Gas line or meter undersized................ Refer to installation instructions.
Bypassing too much water................... Inspect bypass for movement, if no movement,
U.G. not functioning.............................. Replace if no movement when heated.
Overacid...............................................
Overacid...............................................
Heater running after pump
shuts off...............................................
Refractory damage...............................
Sooted heater.......................................
Fan relay...............................................
Fan........................................................
Burned motor .......................................
32
SOLUTION
Check movement by putting in hot water (110°F or hig
higher). If no movement, replace.
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.
Backwash filter.
Raise water level.
Total alkalinity 100-150 PPM maximum.
Hardness 150-400 PPM maximum.
Reduce by adding manual bypass valve. Adjust
manual bypass valve until heater outlet water
temperature is between 105° and 110°F.
Check movement by putting in hot water (110°F
or higher). If no movement, replace.
Refer to installation instructions.
Follow recommended installation instructions.
Adjust gas pressure.
Clean pilot.
Replace pilot.
Adjust gas pressure.
Replace refractory panels.
Determine cause of sooting & correct.
Heat rise (°/hr.)= Htr. output_____
Pool gallonage x 8.33
or refer to heater sizing chart. This does not take into
account heat loss due to weather.
replace.
Replace well and maintain water chemistry properly.
Replace heat exchanger and maintain chemistry
properly.
See pressure switch adjustment.
Replace refractory.
Determine cause of sooting and correct.
Replace fan relay
Loose connection or failed motor
Incorrect wiring, replace blower