Raypak 406A, Installation And Operation Manual

Page: 40 / 52

40
11. TROUBLESHOOTING
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 Possible Cause Corrective Action
Harmonics, or whining noise U.G. inoperative ...................................... Check movement by putting in hot water (110°F [43°C] or
higher)
*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
When the above listed recommendations do not generate acceptable results, the following service kits
are recommended:
1st recommendation:
105F UG Service Kit
2nd recommendation:
Coil Service Kit
Used on Models
018759F 019104F 206-207
018759F 019203F 266-268
018758F 019204F 336-337
018758F 019205F 406-408
Heater going on and off
continuously
Dirty filter ................................................ Clean or replace 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
Liming or scale forming in
exchanger
Pool water............................................... See Water Chemistry on page 5
Bypassing too much water ..................... Inspect bypass for movement, if no movement, replace
U.G. not functioning ................................ Replace if no movement when heated
Sooting High flow rates ........................................ Reduce by adding manual bypass valve
Adjust manual bypass valve until heater outlet water temp is
between 105°F and 110°F (40°C and 43°C)
U.G. inoperative...................................... Check movement by putting in hot water (110°F [43°C] 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
Pilot outage or “Weak Flame”
signal
Low gas pressure ................................... Adjust gas pressure
Restricted/dirty 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 (paint
blistered)
*Broken refractory caused by shipping
damage or improper combustion ............ Replace refractory panels
Excessive sooting of heat exchanger ..... Determine cause of sooting and correct
* Indicates symptom which usually occurs on initial start-up.
PRELIMINARY
UNCONTROLLED DOCUMENT IF PRINTED