RVP 6536 SERIES, Service Manual

Page: 31 / 36

31
Green L.E.D. Light
Refer To 6536 Series Operation
Sequence. Problem Is Not In
FY/F Circuit To The Thermostat
115 VAC To Circuit #1
High Voltage Board
Restore 115 VAC Power
To Circuit #1
If Green Light Comes On, Check
The Outdoor Coil For Freeze
Situation. Warm Coil
Temperature Above 45
E
F.
YES
NO
N
O
Y
E
S
Use Jumper Wire Across
Heat Thermister Terminals
T17 & T16
YES
NO LIGHT
N
O
If Green L.E.D. Will Still Not
Remain On After Coil Temperature
Is OK, Check Thermister For
Continuity. (Caution: It May Have
A Very High Resistance.) Replace
Thermister If Open.
Check 12 VDC To Pin
Connectors R&B On P.C.
Board (See Figure 14).
Y
E
S
Check For 12 VDC To
R (+) & B (-) At The
Thermostat
N
O
Replace P.C. Board If All
The Above Checks Out
OK And Green Light
Does Not Come On.
Check All Pin Connectors At
Thermostat, Lifeline And P.C.
Board. Replace Defective Parts
As Necessary.
Y
E
S
NO
Restore 12 VDC To Thermostat.
* Indoor Thermister Is Ignored When “W”“ Is Energized.
HEAT/MODE CHECKOUT/NO GREEN L.E.D. LIGHT
F/F CIRCUIT TO THE THERMOSTAT