Monitor GF1800 - GF3800 Component Voltage Readings

MONITOR HEATING SYSTEM
Section 5: Troubleshooting IGF380Q
GF3800 Component Voltage Readings
COMPONENT
Thermistor
All
Thermistor
Air Pressure Switch/
Overheat Protector Closed
Air Pressure Switch/
Overheat Protector Open
Damper Solenoid
Gas Control Valve High mode
Gas Control Valve Low mode
Circulation Fan High Speed
Circulation Fan Low Speed
Ignition transformer
Power Transformer AC 120V
(primary side)
Power Transformer AC1 1 V
(secondary side)
Power Transformer AC 120V
(secondary side)
Power Transformer
AC22V(secondary side)
Combustion Blower High Speed
Combustion Blower Low Speed
Resistor
Gas Solenoid Valve
Gas Solenoid Valve
READING TAKEN AT
Q on PCB Sensor Disconnected
readings taken with components connected to PCB.
Q on PCB Sensor connected
J on PCB
J on PCB
I on PCB
P on PCB
P on PCB
White to Black
White to Black
E on PCB
H on PCB
Yellow to Yellow
White to White
S on PCB
F on PCB
F on PCB(Q1 is off)
G on PCB
L on PCB
M on PCB
AC DC
5
1.5-3.2
0
110
105
NAT 8.1
LP 7.6
NAT 5.5
LP 5.1
110
91
110
110
11
120
22
110
88
22
105
105
43