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Model AHC-990/993
3-13
3-14. COMPLETE PANEL OR PC
BOARD REPLACEMENT
To avoid electrical shock or property damage, move the
POWER switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
The complete control panel assembly can be replaced, or just
the PC board. Follow steps 1 & 2 for the complete panel and
continue with the remaining steps for the PC Board replace-
ment.
1. Remove the 4 screws securing the front panel.
2. Pull connectors from back of panel and remove panel.
Figure 3-1. Install complete panel in reverse order. When
installing the PC board, continue to step 3.
3. Using 5/16” socket, remove the 4 nuts securing the control
cover and remove cover. Figure 3-2.
4. Pull the connectors from PC Board. Figure 3-3.
5. Using 5/16” socket, remove the nuts securing the PC board
and remove board. Figure 3-4.
6. Install new PC board in reverse order and unit is now
ready for use.
Figure 3-1
Figure 3-2
Figure 3-3
Figure 3-4
Feb. 2011
Summary of Contents for AHC-990
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