My AC just stopped working suddenly the other day. I parked it.It was working fine, come back the next morning and nothing. The blower motor runs fine like it's supposed to, but the climate control will not operate and the compressor will not engage. The a c and recirculator button will not illuminate either. Any suggestions?
Air Conditioning problems M7060
- Thread starter Kaileebug1
- Start date
Russell King
Well-known member
Lifetime Member
Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Ive done that. I have a schematic on the electrical for the ac. its not low on freon ive checked dual pressure switches. its not sending control ground to amplifier from controler. Even tried new controller
Oh mighty orange tractor lady,give us a comprehensive vison of this tractor's ac. I'm sorry but mighty OT lady's multi-meter isn't working today so amplifiers and controllers aren't in the wheelhouse. You might want to use your meter to find where ground is taking a wrong turn.
I suggest attach gauges & to check high & low pressures. My guess is your tractors AC system is low on refrigerant.
Yes. I have 12 volts on yellow with black stripe and black at controllerStart with the easy stuff. Do you have power and ground to the control panel?
Red is power, black is ground.
You need a ground at the black with yellow wire when the blower is on. without this you will not have the AC light nor will the function turn on.
This completes the ground circuit for the AC clutch relay through the thermo amplifier and through the controller. You do have the blower on when trying the AC correct? Is there continuity through the dual pressure switch?
This completes the ground circuit for the AC clutch relay through the thermo amplifier and through the controller. You do have the blower on when trying the AC correct? Is there continuity through the dual pressure switch?
Yes the dual press switch has continuity through contacts. No ground on white wire w/ black stipe going to amplifier. Amplifier contact from w/b and white open
The W/B wire should be grounded with the blower switch on and the AC switch toggled on. The AC light should illuminate when turned on, if not it is likely there is no ground or the switch is bad. Is this so? Also is there power on Y/B wire (pin 4) of the thermo amplifier? If there is ground at the W/B wire then the issues is likely the the thermo amplifier or frost thermistor.
The thermistor is likely the sensor at the evaporator which should help prevent frost buildup and airflow blockage across the evaporator. The thermo amplifier is the controller which has the internal transistor the opens or closes the ground circuit as needed.
All in one. It has y/b wire w and w/b. But to answer you from earlier, no, the a c light will not illuminate.
When I say all-in-one I mean, you've got you're amplifier, which is mounted next to the evaporator and then your thermister plugs into it. That sits right beside it on the coils.