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THERMADOR Error Code F4
Professional Ranges Models: PDR30/36/48…PRG30/36/48

ERROR CODE	DESCRIPTION	RESOLUTION
CODE F4	Short circuit detected; oven temperature sensor. Check sensor for normal room temperature resistance (1085-1097 ohms at 75 degrees F). Check wires between electronic range control (also called clock or ERC) and sensor.	Replace sensor if other components check normal. Repair electronic range control (also called clock or ERC) if fail code reoccurs

The control continuously monitors system criteria for control as well as oven failures as well as reports a fault code when a system issue is found. The control uses the stoves blue “on light” as well as oven “home heating light” to report a found mistake code. The control will certainly continue to flash the lights in the appropriate sequence as long as the mistake exists.

Detection of a fault does not hinder the capacity of the control to remain to work if the mistake is not crucial for the designated operation. For instance: If the range door latch is faulty, the array will certainly remain to cook considering that the fault would just avoid the range from self-cleaning.

HOW TO INTERPRET CODES
When a fault takes place, the control will certainly flash heaven stove “on light” as well as the Blue “heating light” sequentially to show the mistake. The mistake codes have two numbers, these numbers are analyzed by the number of times the lights blink. The stove “on light” will certainly blink indicating the very first number, and also the “heating light” will blink showing the second number.

EXAMPLE:
Error E9 is … No Air conditioning Followers. The code is 43. The oven “on light” will flash 4 times, then the “home heating light” will flash 3 times, after that pause. The series will after that duplicate as long as the fault exists.

ERROR CODES FOR OVENS WITH DREEFS CONTROL
The adhering to graph reveals the error codes that can be presented in the Oven/Selector window throughout particular stove breakdowns. Some of the error messages can be cleared by carrying out the complying with actions:

Transform the selector knob to OFF
2.”Fine-tune” the oven by turning the selector handle somewhat to the left (counterclockwise). This might quit the blinking message/beeping as well as clear the home window.
For errors E1, E9, E11, E12 and also E13, the power supply mosting likely to the even have to be shut off momentarily, as well as back on again.
If a mistake remains presented when the selector button is OFF, and after trying to clear the screen, as shown in actions 2 as well as 3, shut off the power mosting likely to the stove, and also refer to the graph listed below to help you find the problem.

ERROR CODE	NOTE	CHECK REPAIR
F0	Internal logic failure; cancel key supervision. Sounds alarm and resets to non-cook mode	Replace the electronic range control (also called clock or ERC)
F1	Internal logic failure (monitoring function). Sounds alarm and inhibits cook modes	Replace the electronic range control (also called clock or ERC)
F2	Temperature runaway detected (Bake/Broil: 600 – 700 F; Clean: 930 – 1000 degrees F). Sounds alarm and resets to non-cook mode. Check relay board for stuck contacts. Check oven temperature sensor for normal room temperature resistance (1085-1097 ohms at 75 degrees F). Check sensor wiring connectors for a loose or high resistance connection. Check electronic range control (also called clock or ERC) functions	Replace relay board if necessary. Replace oven temperature sensor if other components check normal. If failure repeats, replace electronic range control (also called clock or ERC)
F3	Open circuit detected; oven temperature sensor. Check sensor for normal room temperature resistance (1085-1097 ohms at 75 degrees F). Check wires and connections between electronic range control (also called clock or ERC) and oven temperature sensor	Replace sensor if other components check normal. Replace electronic range control (also called clock or ERC) if fail code reoccurs
F4	Short circuit detected; oven temperature sensor. Check sensor for normal room temperature resistance (1085-1097 ohms at 75 degrees F). Check wires between electronic range control (also called clock or ERC) and sensor.	Replace sensor if other components check normal. Replace electronic range control (also called clock or ERC) if fail code reoccurs
F7	Function key shorted for over 16 seconds. Check for something pressing a key or preventing normal release of the key	Replace electronic range control (also called clock or ERC) if other components check normal
F8	Internal logic failure; calibration. Alarm sounds and resets to non-cook mode. Check oven temperature sensor for normal room temperature resistance (1085-1097 ohms at 75 F). Check wires and connections between electronic range control (also called clock or ERC) and oven temperature sensor	Replace electronic range control (also called clock or ERC) and oven temperature sensor if other components check normal
F9	Internal logic ailure; door latch supervision. Alarm sounds and resets to non-cook mode. If door is locked due to clean temperatures, disconnect power until door can be unlocked	Replace the electronic range control (also called clock or ERC)
Fd	Bake & Broil relay drives active simultaneously. Check relay board for damage: trace E6 to K2 & K3, and burned contacts K3 & K3	Replace electronic range control (also called clock or ERC). Replace relay board if necessary
Blank Display	No power to lectronic range control (also called clock or ERC). Check oven light and cooktop dial lights (powered by L2 & L1, respectively). Check relay board transformer primary, E1 to E2 (140 ohms typical). If the transformer internal fuse is still OK, check output voltages, pins 9 – 8 (3.2 v.a.c.) and 7 – 6 (21 v.a.c.). Check clock functions after replacing relay board	If relay board transformer open (E1 to E2), replace relay board. If still no clock functions replace electronic range control (also called clock or ERC)

ERROR CODE	NOTES
A	Turns heat off on the failed oven only; microwave not affected.
B	Turns all heat off; microwave not affected.
C	Disables the CLEAN mode in both ovens; allows COOK and microwave.
D	Error will remain in the display until oven is repaired and powered back up. No error tones.
E	Turning the oven off stops the error and flashing display. Can tweak away the error code. Error is redisplayed only if the selector is turned to CLEAN.
F	Tweaking clears to “—“ for retry.
G	Clears when the oven temperature is less then the runaway temperature with the selector switch off.
H	Can be cancelled by tweaking if a good sensor is detected.
I	Cleared with a mode change.
J	Can be tweaked away for immediate retry. User must unlatch and delete the “—“ to try to relatch the door.
K	Turns heat and microwave off.
L	If two switches show a locked door, then E13 and LOCK are permanent in the display (in all modes). If the two switches show an open door, tweak away the E13 error message.