Raypak 260-401 - Manual (Page 29)

29
ELECTRICAL TROUBLESHOOTING
For Service Technicians
START HEATER
IF PILOT BURNER LIGHTS IF PILOT BURNER
BUT MAIN BURNERS DO NOT DOES NOT LIGHT
CHECK FOR 24 V CHECK THERMOCOUPLE
AT GAS VALVE
IF NOT 24 V: IF 24 V: IF O.K. IF DEFECTIVE
CHECK TRANSFORMER OUPUT REPLACE
FOR 24 V GAS VALVE REPLACE REPLACE
GAS VALVE THERMOCOUPLE
IF NO IF 24 V:
24V:
REPLACE PROBLEM IN
TRANSFORMER LIMIT
CIRCUITS
WARNING
HIGH VOLTAGE
For Qualified Technicians ONLY
ELECTRICAL (STANDING PILOT)