I have owned a nifty little h-axis top loader for a few years now. It is a Brandt TX768, badged in Australia as "Kleenmaid by Brandt." It was made some time between 1995 and 2000, in France.
I got it cheaply from a recycle centre, it worked OK except the heating part of the cycle was unreliable - most of the time it would skip through the heating phases of a cycle, doing a cold wash. (It only has a cold water fill.) Occasionally it would stop and heat as normal. I didn't put much time into it, but I could never figure out why.
I like the machine, it rated #1 in the Choice test when it was new, it does a good size load in a tiny footprint and spins at 1100 rpm, and is exceptionally water and energy efficient. When washing it uses around 100 to 150 watts, spinning is 200 watts at full speed which is unusually good for a machine of that age. Heating is 2000 watts, but it doesn't hold much water in the wash phase, so it heats quickly. (When it works.) It has "posistop" which means it always stops with the trapdoor to the drum facing upwards - it uses a magnet on a drum pulley, sensed by a reed switch, so it knows which way is up for the drum. It was stupidly expensive when new (over AUD$1800) but I got it for $15.
Ronhic from this website kindly sent me a link to the owners manual when I first got it. (Thanks.) Recently I brought this washer to the front of the shed as I wanted to use it and see why it would not heat reliably. I found repair manuals online, which detailed a diagnostic sequence. It all tested OK, and did a couple of loads properly. Then it started skipping the heating phase again - timer gets to the heat phase, heats about 15 seconds, then clicks to next increment and heating stops. The service manual tells me that this is the control module finding a fault in the temp sensor (thermistor) or temp setting potentiometer, so it skips the heat phase and completes a cold wash. The pot tested OK in the diagnostics so the fault had to be either the thermistor, wiring loom or the control module itself.
I tested the thermistor with my multimeter, and it tested OK. It misbehaved again, I retested the thermistor and it was open circuit. I removed it, and found if I bumped the thermistor, it would give an erratic connection. (It mounts in the perimeter of the heating element mount, and shares the same rubber seal.) New ones are available, but too expensive. I hacked away the plastic shroud where the wires connect, and found I could remove its innards. I was expecting a thermistor like I have seen on dozens of circuit boards, but it was something rather more crude. Two slender metal spring fingers pinched a tiny disc of heat sensitive conductive material. The electrical connection depends on the spring tension of the fingers against the disc. But the finger tips were tarnished and greenish, so I cleaned them off with fine emery paper and reassembled. I sealed it up with silicone sealant. It is drying overnight, test run is tomorrow. The repaired thermal sensor tested fine with the multi meter this time.
Photos of the machine and the sensor repair:







I got it cheaply from a recycle centre, it worked OK except the heating part of the cycle was unreliable - most of the time it would skip through the heating phases of a cycle, doing a cold wash. (It only has a cold water fill.) Occasionally it would stop and heat as normal. I didn't put much time into it, but I could never figure out why.
I like the machine, it rated #1 in the Choice test when it was new, it does a good size load in a tiny footprint and spins at 1100 rpm, and is exceptionally water and energy efficient. When washing it uses around 100 to 150 watts, spinning is 200 watts at full speed which is unusually good for a machine of that age. Heating is 2000 watts, but it doesn't hold much water in the wash phase, so it heats quickly. (When it works.) It has "posistop" which means it always stops with the trapdoor to the drum facing upwards - it uses a magnet on a drum pulley, sensed by a reed switch, so it knows which way is up for the drum. It was stupidly expensive when new (over AUD$1800) but I got it for $15.
Ronhic from this website kindly sent me a link to the owners manual when I first got it. (Thanks.) Recently I brought this washer to the front of the shed as I wanted to use it and see why it would not heat reliably. I found repair manuals online, which detailed a diagnostic sequence. It all tested OK, and did a couple of loads properly. Then it started skipping the heating phase again - timer gets to the heat phase, heats about 15 seconds, then clicks to next increment and heating stops. The service manual tells me that this is the control module finding a fault in the temp sensor (thermistor) or temp setting potentiometer, so it skips the heat phase and completes a cold wash. The pot tested OK in the diagnostics so the fault had to be either the thermistor, wiring loom or the control module itself.
I tested the thermistor with my multimeter, and it tested OK. It misbehaved again, I retested the thermistor and it was open circuit. I removed it, and found if I bumped the thermistor, it would give an erratic connection. (It mounts in the perimeter of the heating element mount, and shares the same rubber seal.) New ones are available, but too expensive. I hacked away the plastic shroud where the wires connect, and found I could remove its innards. I was expecting a thermistor like I have seen on dozens of circuit boards, but it was something rather more crude. Two slender metal spring fingers pinched a tiny disc of heat sensitive conductive material. The electrical connection depends on the spring tension of the fingers against the disc. But the finger tips were tarnished and greenish, so I cleaned them off with fine emery paper and reassembled. I sealed it up with silicone sealant. It is drying overnight, test run is tomorrow. The repaired thermal sensor tested fine with the multi meter this time.
Photos of the machine and the sensor repair:






