Service manual

COOLING MODE

CHECK/NO GREEN L.E.D. LIGHT

FY/Y CIRCUIT TO THE THERMOSTAT

Note: The green light on the 6536A model has some new functions:

1. If the light is on solid, then everything is OK.

2. If the light is blinking slowly, the unit is in a 3 minute time delay.

3. If the light is blinking fast, there is either no line voltage to Circuit #1

or one of the thermistors are open.