SECTION 6: REPLACEMENT PARTS
6.1 Replacement Parts Instructions
DANGER
Electrical Shock Hazard
Disconnect electric before service or maintenance.
More than one disconnect switch may be required to disconnect electric to the unit.
Failure to follow these instructions can result in death or electrical shock.
See Page 14, Figure 10, Item 2.
6.1.3Microprocessor Programing
The microprocessor may be
Should the microprocessor program become suspect during troubleshooting, consult
WARNING
Explosion Hazard
Turn off gas supply to equipment before service or maintenance.
Failure to follow these instructions can result in death, injury or property damage.
6.1.1Fuse 250 mA
See Page 14, Figure 10, Item 1.
This time delay fuse protects the System Control from power surges, lightning and incorrect wiring.
If the fuse needs replacing, the following steps must be taken.
Disconnect power to the System Control.
Remove the screws from the cover and remove the cover of the System Control. See Page 5, Section
3.2.2for details.
Locate the fuse, and remove the fuse with a fuse pull- ing tool. See Page 14, Figure 10, Item 1.
Replace with a new fuse rated at 250 mA slow blow.
6.1.2Transformer
The transformer on the board cannot be replaced.
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