82
PB
COMPONENT TESTING
Check Fan Motor Capacitors
Gain Acces to the Power PCB (Power Board).
1.
3.
Figure 708 (Fan Capacitors)
WARNING
RISK OF ELECTRIC SHOCK
Unplug and/or disconnect all electrical power
to the unit before performing inspections,
maintenances or service.
Failure to do so could result in electric shock,
serious injury or death.
NOTE: Many motor capacitors are internally fused. Shorting the terminals will blow the fuse, ruining the capacitor. A 20,000
ohm 2 watt resistor can be used to discharge capacitors safely. Remove wires from capacitor and place resistor across
terminals.
1. Disconnect leads to capacitor that you are checking.
2. Bleed down capacitor with 2 watt resistor.
3. Set multi-meter to diode check setting.
4. Check Resistance across capacitor terminals by placing the red lead on the run terminal and the black lead on the common terminal.
(The meter will send a small charge into the capacitor)
5. The meter should show a certain amount of resistance initally and then increase in resistance as the charge in the capacitor
disapaties until infinity is reached.
6. If the meter shows continuity, or does not bleed back down to infinity, the capacitor is shorted and should be replaced.
7. If the meter intially shows infinity the capicitor is open and should be replaced.
Check Cpacitance values in micro Farads using capacitor analyzer.
1. Indoor fan capacitor should read 1.5 uf.
2. Outdorr fan capacitor should read 3.0 uf.
Содержание FRESHAIRE PVH09K3FA
Страница 98: ...98 WIRING DIAGRAMS Figure 801...