Why did it stop working?

The owners manual shows 5 fuses. Remove and check each fuse for continuity.

Is the CHARGE indicator lit while engine is running?... regardless check battery voltage with a DMM. With engine running at medium throttle battery voltage should be >13.0VDC. Less than 12.6VDC implies charging system and/or battery failure. Less than 12.0VDC and electronics may not work properly.

The wiring diagram is included in the owners manual available no fee at the following URL.

https://www.manualslib.com/manual/32031/Countax-Garden-Tractor.html

Hi Yvonne, A flashing blue indicates that the battery is charging. No light indicates the battery is fully charged. A flashing red light indicates that there is a fault,

I would look at the charging port on the laptop itself. It may be bad or not fully attached to the motherboard. Does the charge indicator light come on? If not, try cleaning it with rubbing alcohol and then slowly moving the charging plug around where it connects to the laptop and see if the light comes on at all. If that doesn't work, you could disassemble the laptop and look at the connection/solder joints. This or similar video's may help in doing that - How to Remove Bottom Bezel on the Toughbook 29

possible loose or dirty battery posts and terminals
have the unit service

Volts slowly drop to where what quits ,The vehicle stops running ? Is the charge indicator light lit on the instrument cluster /? are any lights lit on the instrument cluster ? The instrument panel cluster (IPC) illuminates the charge indicator and the BATTERY NOT CHARGING message is displayed in the message center when the following occurs:
The engine control module (ECM)/powertrain control module (PCM) detects that the generator output is less than 11 volts or greater than 16 volts. The IPC receives a serial data message from the ECM/PCM requesting illumination.

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The IPC determines that the system voltage is less than 11 volts or greater than 16 volts. The IPC receives a serial data message from the body control module (BCM) indicating the system voltage.

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The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds.

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The ignition is on, with the engine off

Make sure the free-wheel lever is engaged and the charger is unplugged from the scooter before you try to turn the scooter on. If the battery gauge goes up when you turn the scooter on and there are no beeping sounds you should be good to go.If the battery gauge drops to the red when you try to accelerate slowly, your batteries are shot. (Typical replacement in 24-48 months).If there is any beeping when the key is first turned on then there is a problem and the number of beeps indicates the problem found by the computer during the POST. [Power On Self Test]

From the users manual for these pool cleaners:

The Pool Pulse is a flow meter that measures the volume of water flowing through your Zodiac cleaner. It must be used to properly set the flow and can be used as a diagnostic tool when the cleaner isn't running properly.For the following steps, using 2 people is recommended; one poolside and the other at the plumbing manifold. Vacuum and skimmer valves are located at your plumbing manifold.
• Remove the cleaner head.
• Attach the Pool Pulse® to the end of the hose and keep it under water as shown in Figure 1.
• Turn on the filtration system.
• For pools with one skimmer, flow is automatically regulated by the Flowkeeper Valve. Insure the blue indicator of the Pool
Pulse is in the ideal range (when viewed from the side).
• For pools with two or more skimmers, leave the selected skimmer open and slowly close the other skimmer(s) until the blue
indicator of the Pool Pulse moves into the ideal range (when viewed from the side).
• For pools with a wall vacuum fitting, leave the wall vacuum fitting fully open and slowly close the skimmer valve until the blue
indicator of the Pool Pulse moves into the ideal range (when viewed from the side).
• Keeping the hose under water, remove the Pool Pulse. Submerge the cleaner head, and when the bubbles stop coming from the
extension pipe, attach the hose end. Your installation is now complete.

i have the same exact problem on 1 of my sons MX5s..i checked all 3 batteries and all that! you left out the controller clicks when the back wheels sapose to be moving ,it's not....so worse case scenerio batt,controller,motor,(650 This time)& throttle....So theres our blue print...lets hope it's just the batteries....!

I have a similar problem. My two year old Spike only works for about 1 second after startup, then shuts down with the two pairs of lights nearest his head blinking a few times. I replaced the batteries (main and remote) with no improvement. Called tech and they said the blinking lights indicated a "motor stall" and that I should shake him to reset a position switch. I did that and now he works for 3-5 seconds then shuts off.

Shaving head check indication After two years of use the red shaving unit symbol î will flash for 30 seconds during 7 shaves to indicate that you should check the condition of the shaving heads. This indication is based on an average shaving time of 3 minutes per shave. When the shaving head symbol flashes, all other symbols and lights are out. When the shaver is switched off, the shaving unit symbol disappears. When the red shaving unit symbol starts flashing, you should check the shaving heads for possible damage. If the shaving heads are damaged in any way, they must be replaced in order to obtain optimal shaving results