Raypak 155C Trouble Shooting Guide, Important Notice, Usually occurs on initial start-up

SECTION 5 / TROUBLE SHOOTING GUIDE

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.

MECHANICAL (FOR QUALIFIED SERVICE PERSONNEL ONLY)

PROBLEM

Harmonics, or whining noise.

Heater going on and off continously.

Liming or scale forming on

Sooting

Pilot outage.

Yellow lazy flame

Outer jacket very hot (paint blistered)

Takes long time to heat pool or spa.

Liming

CAUSE	SOLUTION
U.G. Inoperative	Check movement by putting in hot water (110°F
	or higher). If no movement, replace.
*Debris or restriction in system	Locate the restriction and remove. Flush system
	and clean.
*Debris in gas line	Remove debris or blow out gas line.
Low flow	Scale forming in heat exchanger - clean heat
	exchanger and check pool pH and total alkalinity.
Dirty filter	Backwash filter.
Low water level in pool	Raise water level.
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
heat exchanger.	Total alkalinity 100-150 PPM maximum. Hardness
	150-400 PPM maximum.
High flow rates	Reduce by adding manual bypass valve and
	adjust by putting thermometer in header (1/4"
	NPT) drain opening. Set bypass so thermometer
	reads between 105° and 110°F.
U.G. Inoperative	Check movement by putting in hot water (110°F
	or higher). If no movement, replace.
*Air starvation	Refer to installation instructions.
*Improper venting	Follow recommended installation instructions.
*Insects or debris clogging
burner intake ports	Clean burners.
Low gas pressure	Adjust gas pressure.
Restricted pilot	Clean pilot.
Weak pilot generator	Replace pilot.
Low gas pressure	Adjust gas pressure.
*Insects or debris clogging
burner intake ports	Clean burners.
*Broken refractory caused by
shipping damage or improper
combustion	Replace refractory panels.
Excessive sooting of heat
exchanger	Determine cause of sooting & correct.
Calculate temperature in /hr	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.
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,
	replace.
U.G. not functioning	Replace if no movement when heated.

(* Usually occurs on initial start-up.)

26