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I'm not sure if NewAir is made by Gree -- they supply many. On Gree units, E7 simply means one unit is requesting heating while another is requesting cooling and you can't have both at the same time. So that's the first thing to check. Very simple, very common, doesn't indicate that anything is wrong with the system.
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•Improper cartridge (Destination error, life cycle error) •Identific t ion error •Model error •Type error •Destination error •Data abnormality •Misc error Detail •The destination of the machine differs from that of the CRUM. •The trade mark code of the CRUM differs. •The company code of the CRUM differs. •The boot program model code does not coincide with the CRUM model code. •When the CRUM type is other than genuine/ conversion/production rotation. •The machine destination differs from the CRUM destination.
Here is a list of error code meanings for your device. You need to find out the sub code should be E7-?? To find the root cause. Sharp AR 161 Error Codes Trouble Codes
E7
E7 03 LSU trouble
E7 04 CCD white level trouble
E7 05 CCD black level trouble
To fix the error you have to put the safety key in start it it and wait for it to say E7. Now press stop and incline( up) together and hold for 20 seconds. Your treadmill will start to incline up. Take out your safety key. You just restarted your treadmill and can now put the safety key back and your problem will be fixed.
F2-04 is an improper cartridge code and the E7-10 is a shading/lamp brightness issue. I would say the F2-04 is causing both coded, Change the toner cartridge. I have seen those chips on the back of the cartridges cause weird problems. That or the developer unit has failed.
I strongly suspest that once you resolve the F2 issue the E7 will simply go away.
E2 - blend door cannot reach desired position. possible failure at evaporator assembly or wiring to blend door actuator.
E7 - blend door cannot calibrate. possible failure at evaporator assembly or wiring to blend door actuator.
The codes are related to each other.
DIY fix? Well, if you are very mechanically inclined.
I'd recommend getting a estimate from a shop or two.
Also a 2005 Ford What? Model would help too as far as possible DIY repairs.
E7 codes deal with the optical scanner unit and or the laser unit. It could also be the lamp in the scanner unit. The E7 is the main code. There is a sub code associated with it. To view the sub code hold down the start button. Below is a list of specific codes and their meanings:
E7-02: LSU trouble E7-10: Shading trouble (Black Correction) E7-11: Shading trouble (White Correction) E7-12: Shading Trouble E7-16: Abnormal laser output
If it is a laser (LSU) issue then the LSU may need replacing. If it is a shading error the first step is to remove the platen glass carefully (with the power off because the inverter board). There is a thin white strip on the bottom side of the platen next to the slit glass. Clean this white strip with a soft cloth and a small amout of isopropyl alcohol. Dust on the optics can also cause shading reference errors so gently blow off the mirrors with canned air.
Perform the following key procedure to reset error:
"#" key, Interrupt key, "C" key, Interrupt key
"1" key, "4"key
Start key, "CA" key.
See if unit cycles and comes back up. If not turn off and then back on the main power. If error reappears on site technical service may be required.
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