S-314 Checking Flame Sensor - Goodman Amana AMH8 Service Instructions Manual

SERVICING
1. Check for 120 volts from Line 1 (Hot) to Line 2 (Neu-
tral) at the ignition control. No voltage, check the
door switch connections and wire harness for conti-
nuity.
2. Check for 24 volts from W to C terminal on the igni-
tion control. No voltage. Check transformer, room
thermostat, and wiring.
If you have 24 volts coming off the transformer but
receive approximately 13 volts on the terminal board
between (C) and (R), check for blown fuse.
3. Check for 120 volts to the induced draft blower by
measuring voltage between Pin 1 (on the 2-pin con-
nector) and neutral located on circuit board. No volt-
age, check for loose connection in the 2-pin connec-
tor or replace ignition control.
PCBBF132 Control Board
62
PARK PARK
EAC-H LINE-H
K1
K3
K2
FS
FAULT
RECALL
100 SEC 150 SEC
MODE 2 STG 1 STG
5 MIN AUTO
WR50M56-289

S-314 CHECKING FLAME SENSOR

A flame sensing device is used in conjunction with the
ignition control module to prove combustion. If proof of
flame is not present the control will de-energize the
gas valve and "retry" for ignition or lockout.
Flame Sensor
(80% Upflow Model Shown, Counterflow Similar)
XFMR-H
K6 K4
K5
0130F00006
K7
Y W R G C