Monitor 422/441 Resistance Values; Section 6: Troubleshooting - Monitor 422 Service Manual

MONITOR HEATING SYSTEMS
Section 6: Troubleshooting
Monitor
422/441
Resistance
values
COMPONENT
APPROX. OHMS
M-422 M a 1
Igniter (connector B/B) 16.8 12.7
Power Transformer
-
Primary (AC
120V)
125
125
Power Transformer
-
Secondary (AC 12V) 1.6 1.6
Power Transformer
-
Secondary (AC 120V)
M7
647
Damper Solenoid (connector 1/1) 4.600 4.600
Resistor (connector G/G)
63
W
Circulation Fan (M-422:RD 8 BK, M41:WH 8 BK) 235 115
Circulation Fan (M-422:BK B Y L M-441:BK & EL)
247.5
258.5
Combustion Blower (M-422:BK 8 BK, M-M1:WH B
GR)
22
78
Combustion Blower(M41:GR
B OR)
-
92
Thermistor (connector O/Q, at
7 7
F )
10,000 10.000
Fuse 2A (read with fuse out)
0.1 0.1
Fuse 10A (read
with
fuse out)
0 . 0 1 0.01
Solenoid Pump (coil)
565 565
MSCONNECT
HEATER FROM
POWER
SOURCE
BEFORE MAKING ANY RESSTANCE VESTS.