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Old 10-03-2015, 05:54 PM   #1
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2005 Monaco knight sump temp to low

when checking read out the unit stops a oL-7 which is sump temp to low will not continue what does this mean with the coach readout. the busser in the coach goes off when you start to move the coach from a idle air pressure is up and last for 15 to 20 seconds and shuts off after that could this be the sump temp warning or something else. New to the coach and planning a trip in the next week or so.
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Old 10-03-2015, 06:40 PM   #2
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The temp of the transmission oil needs to be at operating temp, usually in the range of 185 to 200 before you can check the oil level with the key pad. Best time to do it is when you are in a level parking lot like a rest stop. There is no buzzer for the transmission

If you get a buzzer when you try to move the coach, sounds like your air pressure is to low.
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Old 10-03-2015, 08:33 PM   #3
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From my experience, Don has described it correctly and what you are experiencing is normal.

When you access the oil level display mode on the keypad, it will go through a diagnostic countdown that lasts approximately two minutes. Each step will take about 15-seconds but will stop at any step where the parameters are not met. In your case, the fluid is not quite up to operating temperature and thus will be interrupted at step 7 (oL 7,0) until the conditions are met and then will continue through the countdown.

edited to add:

Here is a better explanation: RV Tech Library - Checking Allison Fluid Levels with the Keypad
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Old 10-04-2015, 12:04 PM   #4
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Quote:
Originally Posted by ESP GUY View Post
when checking read out the unit stops a oL-7 which is sump temp to low will not continue what does this mean with the coach readout. the busser in the coach goes off when you start to move the coach from a idle air pressure is up and last for 15 to 20 seconds and shuts off after that could this be the sump temp warning or something else. New to the coach and planning a trip in the next week or so.
With my coach the buzzer goes off until the air in my tanks gets above about 60 PSI. The transmission is a Allison 4000MH and the manual says that it has to be up to operating temp to check levels as mentioned above. For my coach operating temp is above 145.
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Old 10-05-2015, 11:00 AM   #5
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ESP GUY......your transmission is not the issue. Monaco had a very common problem with the air brake buzzer. On the panel near your left leg, while sitting in the driver's seat, you have the parking brake switch. It's bolted to the panel with three small screws. You also have a large side cover that your leg rests against. If you remove this panel, it will expose a maze of wiring. You'll also find two 3/8 air hoses (I believe red and blue) behind that panel that attach to the bottom of the brake switch. They actually attach to a small brass valve, about the the size of your thumb. It also has wires attached. This is the air brake sensor. I replaced three of them over ten years on my 2005 Diplomat. Monaco still sells this part via their parts store. It's about $50.00 shipped to your house. ONLY Monaco sells the appropriate one for your specific coach.

Here is a test that will confirm yours is bad. Release the parking brake and put the coach in gear. If it's buzzing/beeping put your foot on the brake, pull the parking brake handle up and then slam it down hard with your palm. This typically makes the sensor quick buzzing. Usually, driving for a few seconds will make it shut off. It can also buzz unexpectedly while driving, for a few seconds, and then shut off.
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