Vulcan Materials itw 60rrg ユーザーズマニュアル

 

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 Disconnect the electrical power and follow lockout / tagout procedures

 
SOLENOID VALVE TROUBLESHOOTING 
 
SYMPTOM – NO GAS FLOW TO BURNER 

1.  Check terminals for loose or greasy/dirty connections 
2.  Check gas pressure – check for orifice obstructions. 
3.  With thermostat, indicator light and power switch on – check for 120 voltage between the two 

terminals on the solenoid. 

A.  On pilot solenoid if no voltage – check wiring and on/off power switch 
B.  On main burner solenoid  if no voltage – check wiring, safety ignition module and  

thermostat  

4.  If you have 120 voltage between the two terminals after performing steps 1- 3, replace the   
       solenoid valve. 
5.  Check for a shorted coil by checking resistance between the two terminals with the wires 

disconnected.  Readings of 100 ohms or less would indicate a shorted coil, replace the 
solenoid. 

1.  Remove the control panel. 
2.  Label and disconnect the wires to the solenoid terminals. 
3.  Remove the two retaining screws that are holding the valve body in the bracket. 
4.  Disconnect the input compression fitting and the output compression fitting(s). 
5.  Remove the solenoid valve 
6.  Reverse the procedure to install.  Be careful to attach the input lines to the ports on the valve 

body that are stamped IN 

7. Verify 

gas 

pressure

 and check for proper operation. 

 

 

Retaining screw