Frigidaire GLCS378DSA Service Data Sheet

SERVICE DATA SHEET 318127015 (0306) Rev. A

Dual Fuel (Gas Cooktop - Electric Oven) Slide-in Range
with ES300 Electronic Oven Control and Speed Bake Feature

NOTICE

This service data sheet is intended for use by persons having electrical and mechanical training and a level of
knowledge of these subjects generally considered acceptable in the appliance repair trade. The manufacturer

cannot be responsible, nor assume any liability, for injury or damage of any kind arising from the use of
this data sheet.

SAFE SERVICING PRACTICES

To avoid the possibility of personal injury and/or property damage, it is important that safe servicing practices
be observed. The following are examples, but without limitation, of such practices.

1. Do not attempt a product repair if you have any doubts as to your ability to complete it in a safe and
satisfactory manner.

2. Before servicing or moving an appliance, remove power cord from electric outlet, trip circuit breaker to Off,
or remove fuse and turn off gas supply.

3. Never interfere with the proper installation of any safety device.

4. USE ONLY REPLACEMENT PARTS CATALOGED FOR THIS APPLIANCE. SUBSTITUTIONS MAY DEFEAT COMPLIANCE
WITH SAFETY STANDARDS SET FOR HOME APPLIANCES.

5. GROUNDING: The standard color coding for safety ground wires is GREEN OR GREEN WITH YELLOW STRIPES.
Ground leads are not to be used as current carrying conductors. IT IS EXTREMELY IMPORTANT THAT THE
SERVICE TECHNICIAN REESTABLISH ALL SAFETY GROUNDS PRIOR TO COMPLETION OF SERVICE. FAILURE TO
DO SO WILL CREATE A POTENTIAL HAZARD.

6. Prior to returning the product to service, ensure that:

• All electric connections are correct and secure.

• All electrical leads are properly dressed and secured away from sharp edges, high-temperature components,

and moving parts.

• All non-insulated electrical terminals, connectors, heaters, etc. are adequately spaced away from all

metal parts and panels.

• All safety grounds (both internal and external) are correctly and securely reassembled.

• All panels are properly and securely reassembled.

ES300 ELECTRONIC OVEN CONTROL

The ES300 electronic oven control is almost identical to the current control with a few exceptions.

Note: The ES300's are not field repairable. Only temperature settings can be changed. See Electronic Oven Control
Guide (section recalibrating your oven temperature).
Note: Depending on model, the size and shape of touch pads may vary (for example round instead of elliptical).

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NORMAL BAKE

During a normal bake mode, the control preheats the oven with the bake element. When the desired temperature
is reached, the control adds top heat by cycling the broil element on for 6 to 9 seconds per minute . The bake element
is on for the remaining time of the minute. Both elements use full power when they are on but they are never on
at the same time.

CLEAN

During a cleaning process, the oven uses the bake element. When this mode is called, the door locks right after start
button is pushed.

FIRST RISE

It is normal to see a temperature overshoot in the
first rise of all modes when you monitor the temperature.

T°

t (sec)

First rise overshoot

set point

ELECTRONIC OVEN CONTROL

ELECTRONIC OVEN CONTROL FAULT CODE DESCRIPTIONS AND RTD SCALE

Note: Only three fault codes are displayed by this control “F1”, “F3”, and “F9”. Generally speaking “F1” implies

a control failure, “F3” an oven probe problem, and “F9” a latch motor problem. In all ocurrences the alarm
is accompanied by a display of “F1”

Fault Code

F1

Likely Failure Condition/Cause

1. Shorted keypad.

2. Control's internal checksum may
have become corrupted.

3. Control has sensed a potential
runaway oven condition. Control
may have shorted relay, RTD sensor
probe may have gone bad.

Suggested Corrective Action

1. Replace EOC.

2. Disconnect power, wait 30 seconds and reapply power.
If fault returns upon power-up, replace EOC.

3. Check RTD sensor probe and replace if necessary. If oven
is overheating, disconnect power. If oven continues to
overheat when the power is reapplied, replace EOC.
Severe overheating may require the entire oven to be
replaced, should damage be extensive.

F3

F9

1. Open RTD sensor probe/ wiring
problem. Note: EOC may initially
display an "F1", thinking a runaway
condition exists.

2. Shorted RTD sensor probe / wiring
problem. Note: "F3" is displayed
when oven is in active mode or an
attempt to enter an active mode is
made.

1. Door motor failure / jammed. Latch
motor switch failure.

2. Control software failure, or
component failure (relay stuck).

3. Safety thermostat opened, or cooling
fan stalled.

4. Wiring Problem.

1. Check wiring in probe circuit for possible open condition.
Check RTD resistance at room temperature (compare to
probe resistance chart). If resistance does not match the
chart, replace the RTD sensor probe.

2. Check wiring in probe circuit for possible short condition.
Check RTD resistance at room temperature (compare to
probe resistance chart). If resistance does not match the
chart, replace the RTD sensor probe.

1. Press CLEAR key.

2. If CLEAR key does not eliminate problem, turn off power
for 30 seconds, then turn on power.

3. Check wiring of Lock Motor, and Lock Switch A and Door
Switch circuits. Look for stalled cooling fan, broken
safety thermostat, shorts or opens.

4. Unplug P4, apply power (L1) directly to the Lock Motor,
if the motor does not rotate, replace Lock Motor Assembly.
Plug P4.

5. Check Lock Switch A for proper operation (do they open
and close, check with ohmmeter). The Lock Motor may
be powered as in above step to open and close Lock
Switch. If the Lock Switch is defective, replace Motor
Lock Assembly.

6. If all above steps fail to correct situation, replace control.

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RTD SCALE

Temp. °F Temp. °C Resistance (ohms)

32 ± 1.9 0.0 ± 1.1 1000 ± 4.0

75 ± 2.5 23.9 ± 1.4 1091 ± 5.3

250 ± 4.4 121.1 ± 2.4 1453 ± 8.9

350 ± 5.4 176.7 ± 3.0 1654 ± 10.8

ELECTRICAL RATING

Kw Rating See

240/208 V nameplate

Broil Element 2750W/2065W

Wattage

Warmer Drawer 450W/120V

Element

Oven Temperature

Sensor

450 ± 6.9 232.2 ± 3.8 1852 ± 13.5

550 ± 8.2 287.8 ± 4.6 2047 ± 15.8

Bake Element 3000W/2253W

Wattage

650 ± 9.6 343.3 ± 5.3 2237 ± 18.5

900 ± 13.6 482.2 ± 7.6 2697 ± 24.4

CIRCUIT ANALYSIS MATRIX

Bake

P1 & P2

Bake

Broil

Clean

Unlocked

Locking

Locked

Unlocking

Speed Bake

* Denotes broil element alternate with bake element.

X

X

X

Broil

P1 & P3

X*

X

MDL

P5-6 & N

X

X

Lock Motor Switch

A

X

X

Cooling Fan

Top Coil

X

Top Ceran

X
X

X

X

DOOR LOCK MECHANISM

The appliance is equipped with an electronic oven control and has an auto locking door latch feature. When
the self clean cycle is programmed, the door is locked by a motor operated latch system. The interior of oven
does'nt need to heat up to 500°F/260°C before the door locks. However, until the temperature inside oven
reaches 500°F/260°C, the self-clean program can be canceled and door will unlock immediately. After oven
reaches temperatures over 500°F/260°C, the door will not unlock until temperature drops below 500°F/260°C.

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