Electrical Components Removal and Replacement

FIGURE 51 — CAPACITOR TEST

5. The reading on the meter should first indicate

zero, or a low resistance, then slowly rise toward

infinity or some high value or measurable resis-

tance. This indicates the capacitor is most likely

good. If the reading goes to zero or a low resis-

tance and stays there, the capacitor is likely

shorted and needs replacement. If the reading

immediately indicates infinity, the capacitor is

likely open and must be replaced.

6. Replace the capacitor if failed and rewire accord-

ing to the WIRING SCHEMATICS located in the

control box of the unit.

■ FAN CYCLE SWITCH — The fan cycle switch has

2 operating modes, continuous (CON) and cycle (CYC).

To verify the fan cycle switch is operational, a continu-

ity test may be performed as follows:

7.Remove the 2 screws mounting the thermostat to the control box. Route thermostat bulb and capil- lary out of control box.

8.Remove thermostat.

9.Reverse Steps 1-8 to reinstall.

■OUTDOOR FROST THERMOSTAT (Heat Pump Units) — To remove the outdoor frost thermostat (OFT), perform the following steps:

1.Turn off unit power as described in UNIT DISASSEMBLY section.

2.Remove front panel.

3.Remove the 2 screws mounting the thermostat to the bottom of the control box. See Figure 53.

FIGURE 52 — FAN CYCLE SWITCH (3 Terminal)

1.	Turn off unit power as described in UNIT
	DISASSEMBLY section.
2.	Label and remove the leads connected to fan cycle
	switch. See Figure 52.
3.	Connect the volt-ohmmeter for 1X ohms and check
	for continuity from terminal 2 to 1 then change
	the switch position and check for continuity from
	terminal 2 to 3.
4.	Once test is complete, reconnect the leads.