Housing frame assembly
Table 5-1. Direct Support and General Support Troubleshooting - Continued
TESTING OR INSPECTION
HEATER FAILS TO IGNITE, BUT RED INDICATOR LIGHT DOES NOT COME ON.
Check time delay transformer output. Disconnect power plug. Remove the control box and
disconnect male plug. Install a jumper from pin 1 to pin 6 in the female receptacle in the heater
case. Open access doors and disconnect the brown lead to the flame switch at terminal strip
terminal G. Connect the power plug and measure voltage at pins 2 and 3 of the female receptacle.
Voltage should be 23 to 30 VAC.
If there is no voltage, or incorrect voltage, replace the time delay transformer assembly.
Disconnect the power plug. Disconnect the 4 leads at the time delay transformer (below the
terminal strip near the carburetor). Remove the screws and washers which secure the
transformer to the heater case, and remove the transformer. Install a new transformer and
secure to the heater case with screws and washers. Connect the four leads and recheck
operation. If this corrects the problem, reconnect the brown wire to terminal strip terminal G.