temco-tool 33rdvdsn 用户手册

26

NOTE: Before troubleshooting the gas  control system, be sure external shut off is in the “ON” position.

WARNING: Before doing any gas control service work, remove glass front!

  No gas to main burner 

Low gas pressure to 

With the main burner functioning, adjust the inlet  

   

the appliance. 

pressure regulator to supply gas to the appliance  

   

 

within the design parameters of the appliance   

   

 

manufacturer.  (Typically 7”NG, 11”LPG) 

   

Gas line valve not in ON position. 

Rotate OFF/ON gas line valve to the ON position.

  Thermostat/wall switch 

Thermostat not in ON position. 

Turn thermostat ON, and adjust temperature    

   

 

control to call for heat.

   

Defective thermostat or thermostat 

Replace thermostat or wiring.   

 

 

   

wiring.

  Thermostat/wall switch 

Defective wall switch. 

Repeat the above troubleshooting items covered  

   

 

under will not cycle main “Defective thermostat or  

   

 

thermostat wiring”, except substitute the words  

   

 

“wall switch” where the word thermostat appears  

   

 

in the instructions. 

   

Excessive wire resistance. 

Make certain all connections are made using wire  

   

 

of the proper size. 

 

 

 

   

Valve wired wrong. 

Refer to wiring diagram on Page 23.

  No spark when system is  Check for 120V between black “hot”  If 120V not present, check fuse or circuit breaker   
  turned to “ON” and reset   line at control module and “white” 

or repair wiring leading to fireplace. 

 

 

  cycle* has been  

return at module.  

 

 

 

 

 

 

 

  completed.
  Spark for six (6) seconds  a. Check that gas is turned on   

Turn gas on and/or purge system. 

 

 

  at Ignitor, but no ignition   system purged. 

 

 

 

 

 

 

 

  of burner. 
   

b. Check that tips of ignitor are 

Position elecrodes so tips are directly above    

   

directly above ports on main burner.  burner ports and about 1/4” to 3/8” above  

 

   

Spark is between electrodes and not   burner. 

 

 

 

 

 

   

from one electrode to burner 

 

 

 

 

 

 

   

c. Check for 120V at each coil on the   If 120V present, but gas valve does not click,    

   

gas valve and listen for click 

replace gas valve. 

 

 

 

 

   

indicating gas valve is opening.

  Spark for six (6) seconds  Check for clean ground path between  Clean, position according to wiring diagram and  
   

electrode bracket and fireplace  

repair defective electric connections. If all 

 

   

chassis. Check wiring to wiring  

electrical connections are clean and correct,   

   

diagram label. Check for broken 

replace module. 

 

 

 

 

   

electrode on high-tension lead 

 

 

 

 

 

 

 

   

attachment to module.

  Main burner lights  

a. Check thermostat if applicable.  

Turn thermostat up to call for heat or replace.   

  normally and then goes   

 

 

 

 

 

 

 

  out. 
   

b. Check high-tension lead and 

Replace spark electrode assembly. 

 

 

   

connector for shorts. 

*NOTE: Module DS2070S_A has a five (5) minute lockout timer:  If burner does not light wait for five (5) minutes be-
fore attempting to relight.