36 _ Troubleshooting
■
Centrifugal Switch (Motor)
■
Thermistor
238.23 Ω
@
25°C
77
■
GAS MODEL
Radiant Sensor(10RS)
•
Resistance
value
<
1
Ω
•
If
resistance
is
replace
Radiant
sensor
120V
Igniter(101D)
•
Resistance
value
40~400
Ω
•
If
resistance
is
replace
Igniter
120V
4.5A
Thermostat (60T21 Hi-Limit)230F-50F
•
Resistance
value
<
1
Ω
•
If
resistance
is
replace
Thermostat
120V
20A
(60T2)
2.88Ω
between
Pin#
3
and
4
3.5Ω
between
Pin#
4
and
5
Gas valve (25M01A)
•
Valve 1-2: Resistance value approx. 1365 Ω
•
Valve 1-3: Resistance value approx. 560 Ω
•
Valve 4-5: Resistance value approx. 1325 Ω
•
Valve 6-7: Resistance value approx. 1000 Ω
•
If resistance is infinite, replace valve.