Rheem Raypak 207A Installation And Operation Manual page 36

TROUBLESHOOTING (CONT:)
Problem
Takes too long to heat pool or
spa
Leaking at heat exchanger
Gasket brittle and leaking -
(overheated)
Combustion fan not running
"Fan 5 min Delay" signal or
"Fan Lockout" signal
36
Possible Cause
Under-sized heater .................................
Filter not running long enough ................
Dirty filter ................................................
Gas line or meter undersized .................
Overacid .................................................
Heater running after pump shuts off .......
Refractory damage .................................
Sooted heater .........................................
Fan relay.................................................
Fan .........................................................
Burned motor ..........................................
Air pressure switch .................................
Corrective Action
Calculate heating capacity of heater
Htr. output (BTUH)
Pool gallonage x 8.33
or refer to heater sizing chart
This does not take into account heat loss due to weather
Reset time clock
Clean filter
Refer to installation instructions
Replace heat exchanger and maintain proper water chemistry
See Pressure Switch Adjustment
Replace refractory
Determine cause of sooting and correct
Replace fan relay
Loose connection or failed motor
Incorrect wiring, replace blower
Replace air switch