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Part # MPSM07 (03/24/08) Page 53
TESTING & TROUBLESHOOTING
Component Readings
Spritzer
Solenoid
Valve Coil
Resistance
22 Ω
Dual Stage Gas
Valve
Solenoid
Resistance
Pilot Valve = 28.5 Ω
Main Valve = 28 Ω
Fan Motor And Blower Wheel
The blower wheel and fan motor are considered to be one
complete assembly. Therefore, if the motor is determined to
require replacement, the blower wheel must be replaces as
well.
Garland sets the wheel at the factory with a speci c gap
setting.
GROUND
5
LED
THS 2
M.V. 3
SENSE 4
Direct Spark
Ignition Module
3 Trials
4 Seconds Per Trial
No Retry
Minimum Acceptable
µa Reading ≥ 0.3
Heat & Control
Board Transformer
Primary = 21.5 Ω
Secondary = 1.5Ω
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