Replacing Circuit Board - Invacare HomeFill II Service Manual

SECTION 6—PANEL ASSEMBLY

Replacing Circuit Board

Before handling any circuit boards, you need to be properly grounded to prevent
static damage to the components of the circuit board. A static strap MUST be worn
and properly grounded using an alligator clip. Electrical conduit or a water pipe is
normally sufficient when a known good ground is not available. Care should be
taken to ensure that the alligator clip contacts with a bare metal surface.
When removing quick disconnect terminals, DO NOT pull on the wire itself as
damage to the connection may occur. Hold down the circuit board with one hand
and use an upward force with a slight rocking motion to remove the wire
connections.
NOTE: For this procedure, refer to FIGURE 6.4 on page 28.
1. Remove the cabinet. Refer to Removing/Installing the Cabinet on page 21.
2. Remove the control panel. Refer to Removing/Installing Control Panel on page 25.
3. Push in on each of the four standoff securing tabs one at a time while pulling the
circuit board away from the control panel.
Before installing the circuit board, ensure that all insulators are in place.
4. Install new circuit board onto standoff tabs.
NOTE: When installing the circuit board to the control panel, make sure that the standoff securing
tabs are out. You will hear an audible click when the securing tab locks the circuit board in place.
5. Install the control panel. Refer to Removing/Installing Control Panel on page 25.
6. Install the cabinet. Refer to Removing/Installing the Cabinet on page 21.
7. Operate the compressor.
8. To ensure proper operation, perform a cylinder fill test. Refer to Cylinder Fill Test on
page 50.
HomeFill™II Compressor
CAUTION
CAUTION
FIGURE 6.4 Replacing Circuit Board
28
Standoff
Securing
Tab
Circuit
Board
Part No 1141487