• If the above inspections do not show reasons
for incorrect pressure, the problem is in the
Control Valve. Replace the Control Valve refer-
ring to page 12-18 for replacement procedure.
If the refrigerator fails to light on GAS:
1. If the piezo lighter does not supply sparks to the
burner when depressed, check for correct ad-
justment of the electrode. It should be 1/8" max.,
1/16" min. above the burner. See Figure 8.
If the Electrode position is correct and there is
still no spark when rapidly depressing the red
piezo button, inspect the ignitor wire from the
Electrode to the Piezo lighter to insure good
connections and that it is not grounded through
skinned insulation, etc.
If the Piezo still does not produce sparks, the
Piezo Ignitor must be replaced. See page 12-19
for replacement procedure.
2. If the flame does not hold the safety valve open
(flame goes out when Gas Control is released)
in the GAS mode, check that the thermocouple
is tight and that the gas pressure is correct at
11" W.C..
DO NOT OVER-TIGHTEN THE CONNECTION ON
EITHER SIDE OF THE INTERRUPTER. THE COR-
RECT PROCEDURE FOR BOTH CONNECTIONS
IS TO TURN THE CONNECTOR UNTIL IT IS FINGER
TIGHT; THEN TIGHTEN IT A QUARTER TURN MORE.
The tip of the Thermocouple must not touch the
metal fire tube or any metal part; this condition
could prevent the flame from locking in.
If Thermocouple is correctly positioned and the
safety valve still does not hold the flame, use the
following procedure to isolate the problem:
Make sure that the Energy Selector is set at
GAS and the Gas Control is set at HIGH COOL.
With a digital multimeter set to read milli-volts,
connect probe lead (A) to one of the Interrupter
terminals as illustrated in Figure 14 (do not re-
move the orange wires from the Interrupter ter-
minals although you may need to raise them
slightly to allow the probe to touch the terminal).
Connect the other probe lead (B) to the copper
thermocouple tubing. Ignite and maintain a
flame at the burner by continually holding in the
Gas Control knob. Observe the milli-volt read-
ing. Then move probe A to the other terminal
and observe the milli-volt reading. The problem
can be isolated as follows:
CAUTION
Figure 14 - Measuring Thermocouple milli-volts
Thermocouple Troubleshooting Table
Milli-Volt Reading Diagnosis
4-19 milli-volts read at both
Interrupter terminals
This is a normal reading indicating
problem is mechanical, not electrical.
Thermocouple functioning properly.
Defective Gas Control Valve; replace
per procedure on page 12-18.
0 milli-volts read at both
Interrupter terminals
Defective Thermocouple; replace
per procedure on page 12-19.
High milli-volt reading (20-30) on
one Interrupter terminal 0 milli-volts
on other
Thermocouple OK if orange wires
properly connected to W3 & G3 from
the Interrupter, replace the Control
Valve and Interrupter per procedure
on page 12-18.
High milli-volts (20-30) on both
Interrupter terminals
Defective Gas Control Valve; replace
per procedure on page 12-18.
13
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