Gf1800 Resistance Values - Monitor GF3800 Servise Manual

MONITOR HEATING SYSTEM
Section 5: Troubleshooting IGF1800I
GF1800 Resistance Values
COMPONENT
APPROX. OHMS
Ignition Transformer (connector E/E) 108,000
Power Transformer-Primary {AC120V} (connector H/H)
77
Power Transformer-Secondary {AC11V} "Yellow" & "Yellow'connector R 1.8
Power Transformer-Secondary {AC 120V} "White" & "White'connector R 489
Power Transformer-Secondary {AC22V} (connector S/S) 8.3
Damper Solenoid (connector I/I) 4,600
Resistor (connector G/G)
68
Circulation Fan (LEAD WIRE "Red" & "Black")
430
Circulation Fan (LEAD WIRE "Black" & "Yellow") 420
Combustion Blower (LEAD WIRE "Black" & "Black")
18
Thermistor (connector Q/Q at 77'F) 10,000
Fuse 2A (read with fuse out)
0.1
Gas Control Valve (connector P/P)
87
Gas Solenoid Valve (connector LA.) 2,400
Gas Solenoid Valve (connector M/M)
2,400
^WARNING:
DISCONNECT HEATER FROM POWER SOURCE
BEFORE MAKING ANY RESISTANCE TESTS.
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