Not a transmission problem. Does it do this on all cycles or just one such as permanent press? With some washer models on certain cycles it will switch speeds during wash. It could be the timer, motor switch or speed select switch depending on model. We would need the model number of the washer and a clear readable photo of the timer chart and wiring diagram that may be located on the upper left side of the inside rear cabinet or a folded up tech sheet inside the control panel.

Eric

Photo's are good, thanks. This is most likely a timer problem however it could also be the motor switch or a faulty wire/wire connection. Do you have a multimeter? Check the orange wire at the timer connector and motor connector. Unplug those connectors and check for burnt/corroded terminal at the orange wire. If you have a multimeter, I can tell you what to check for.

Eric

Unplug washer, pull timer knob out (on position), set to spin in delicate cycle (low speed), close lid and check continuity between hot (small blade on power cord)(may be different in Canada?) and the orange wire at the motor connector. Should read zero ohms (dead short). If not good, check between power cord and orange wire at timer plug. If not good, check at tan wire on timer connector. Should be good there. If no continuity between tan wire and orange wire at timer connector, timer is bad. If you had continuity at the motor orange wire, check also at blue wire (plug hot to blue). If no good, motor switch is bad. The motor switch is where the cable plugs in. It is available as a separate part from motor however you may be able to fix it if this is the problem. Not sure on timer knob removal on this washer. I cannot find any info on this model (canadian). Typically, on older Whirlpools, the knob just unscrews. You may have to hold a tab at the center of the back of the timer to do this. Newer models with plastic timers have a tab in the back of the timer that you pull on with needle nose pliers while pulling the timer knob straight off.

Eric

Yes, it connects to the black wire first but there are internal timer busses that connect it to other timer pins. Power goes out through the lid switch and pressure switch and back to timer again but eventually to the orange wire in low speed function. Anyway, your back in business. It would have been a lot simpler to just swap the motor than the whole shebang. You can take the screw out of the side of the motor switch and pull it slightly away from the motor to take the cover off to reveal the internal contacts that are operated by the motors centrifugal mechanism. If it's just a dirty contact, you might get away with cleaning it. Otherwise, the switch can be easily replaced. Here's one with faulty start winding contacts. The contacts below it are the speed select contacts.

Eric

Something seems amiss. That is a switch for a single speed motor. The wiring diagram shows a two speed motor. Does the motor wiring harness connector have an orange wire going to it? What is the information from the motor nameplate?

Eric