Specifications

34
Fuses - Inspection and Replacement
1. Turn off the power to the unit.
t The combination of electricity and water can pose a very dangerous situation.
Assure that all power has been shut off / disconnected and locked out in an
approved manner, before attempting any installation or maintenance procedures.
2. After assuring that the power has been turned off and locked out, unlock and open
the door to the electric control cabinet.
Note: Fuses in the heating element circuit normally "blow" when the heating
element short circuits. If a blown fuse in the heating element circuit is
detected, refer to the applicable heating element (EHB or FTB) inspection and
replacement section of this manual.
3. Inspect the suspect fuse, either visually or by means of an Ohm meter.
4. If a blown fuse is found, it can be removed by pulling it out from the receptacle.
5. Insert the new fuse by aligning it with the receptacle and pushing it into place.
6. After assuring that all tools and other foreign matter have been removed from the
electric control cabinet, and that all personnel are clear, turn on the power.
7. If the replaced fuse blows again, refer to the appropriate maintenance section for
the component which the fuse serves.
8. If the replaced fuse functions correctly, close and lock the electric control cabinet
door. The unit is now back on line.
Heating Element(s) and Gasket(s) - Inspection and Replacement
EHB Type Element
1. Follow Steps 1 through 4 of the shutdown procedure (page 19) to take the
unit off-line before attempting any heating element service.
t The combination of electricity and water can pose a very dangerous
situation. Assure that all power has been shut off / disconnected and
locked out in an approved manner, before attempting any installation or
maintenance procedures.