Question about Maytag MGR5750 Gas Kitchen Range
Maytag gas range model # CHG9800BAE
The oven is slow to reach selected temperature. Takes at least 10 minutes from 75f then starts to rise progressively quicker, we have had the range 15 years with no other problems.
You have a problem with your oven temp. sensor. Remove it and check it at room temp. It should meter out at 1 to 1.1K ohms. If it doesn't replace it.
Posted on Dec 29, 2007
Here are the codes for magic chef:
F1 1. Watchdog on board
2. Touch membrane defective To determine which component is at fault, disconnect ribbon strip. If NO fault code, replace membrane, otherwise replace board F2 Oven too hot Check oven temperature sensor F3 F4 Open or shorted oven temperature sensor Replace F5 Hardware and watchdog circuits disagree Replace clock assembly (also called the ERC) F6 Missing AC signal Replace clock assembly (also called the ERC) F7 Function key shorted Replace touch pad F8 Analog/Digital converter Replace clock assembly (also called the ERC) F9 Door latch Check door lock circuit F10 Function key stuck Replace touch pad
Posted on Nov 18, 2007
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Posted on Mar 11, 2010
Here is some wisdom for understanding F1 fault codes.
In some models, there are subcodes that make diagnosis even easier.
Here's a simple explanation of what's going on and how to troubleshoot:
The F1 code indicates that:
a. The electronic range control (ERC) is sensing heat in the oven when in a time-of-day (i.e., not cooking) mode.
b. The ERC is receiving information to run multiple heat functions simultaneously.
Although different components (depending upon the model) could generate the code, simple and straightforward testing using your ohm meter is all you gotta do to test for it.
1. Check the oven temperature sensor. The oven sensor has to be within spec or it will cause the F1 code.
As an example of being out-of-spec, the ERC will generate an F1 fault code when the sensor shows 1650 ohms during a time-of-day mode.
This is equivalent to 350°F in the oven.
The resistance isn't high enough to generate an F2 code (runaway temp) or an F3 or F4 code (shorted/open sensor circuit).
The ERC monitors the sensor circuit after a heat cycle and expects the resistance to drop back to 1050-1100 ohms.
The fault code is generated when this doesn't happen. Checking the sensor circuit means also checking the harness,
harness connections and the sensor itself.
2. If the oven sensor circuit checks okay, then turn your inquisitive eyeballs to the touchpad.
If the range has a separate touchpad/keyboard, the keypad may have moisture that is shorting several circuits simultaneously.
If the F1 code is given immediately (instead of during or after a heat cycle),
remove the ribbon connector from the touchpad to the ERC after clearing the F1 code. If the F1 code does not return in five minutes,
then cast a suspicious gaze upon the touchpad/keyboard. Shorts may be caused by using an ammonia-based glass cleaner.
The touchpad surface will absorb ammonia-based cleaners that are sprayed directly on the glass surface. When heat is applied,
the surface material can break down causing shorts.
If you're gonna use ammonia-based cleaners on your control panel, then you should spray it on the rag and then wipe the touchpanel
-don't spray directly onto the surface of the touchpad.
3. On Amana ranges with a rotary temperature dial, be sure that the knob is in the OFF position when performing tests.
4. If these tests all check good, then replace the ERC.
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Posted on Oct 01, 2010
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