Troubleshooting
6-40
Algas-SDI Operations & Maintenance Manual P/N 52632
Power “ON” Lamp Does Not Illuminate - Division 2
If the "POWER ON" lamp does not illuminate when the power switch is turned
on:
1. On current units the Division 2 indicating lamps are 12 VDC LED's and
should not require replacement for a very long time. However on older
vaporizers an incandescent bulb is used. Check the bulb and replace if
necessary.
2. Check branch fusing.
3. Check the two input fuses to the transformer and replace if necessary.
4. Check for 15 VAC at the transformer terminals Y1 and Y2, and the control
board terminals P13 and P14.
A. If there is 15 VAC at terminals P13 and P14 – replace the control board.
B. If there is no 15 VAC at terminals P13 and P14 – check for high voltage
input to the transformer.
1. Voltage OK – change the transformer.
2. No voltage – repair the wiring from the input power terminal to the
transformer.
See the Electrical Drawing that came with your unit for other transformer
wiring configuration.
Figure 17 - Power ON Lamp Does Not Illuminate
Power ON Lamp.wmf
VAC