Swapping them out

[adam-aussie-vac]

Hey guys, so I’m gonna be moving on my GE FilterFlo and instead I’m gonna have a hoover 935 (the model with a built-in heater) As from my understanding, the Hoover 935 takes up the same amount of space but actually has a lot more capacity plus I’ll be honest. I miss actually having one of those hoovers.

I’ll post some images of what the machines looks like One after the other

 

[aussie-plugs]

Consider disabling the heater ...

There was a design flaw in the circuitry. If the thermostat fails closed, the heater remains energised throughout the cycle ... melting through the plastic outer tub during spin.

My partner and I got a free replacement tub from Hoover when this happened and we pointed out why.

Otherwise, a great meachine!

 

[brisnat81]

Hi Nick, that’s interesting, normally they were routed through the pressure switch as well. The thermostat was the operating component rather than a safety.

Adam, congrats on the new machine, if there is a schematic inside the control panel, it would be great to see a picture.

 

[adam-aussie-vac]

Honestly, I might decide to disable the heater or

Or potentially adding some sort of high limit thermostat at 80°C or something of The like to prevent It both Dry firing (heating element on during spin) or probably even better, some sort of electric latch system where unless both the pressure switch is satisfied and a high limit thermostat hasn’t tripped It will run the heater, if any of those two conditions aren’t Met the heating element won’t turn on as I do want to use the heating element but I also want to not Dry fire through the plastic tub

 

[adam-aussie-vac]

The term Dry firing is when you run a water heating element without water

 

[brisnat81]

The thermostat is designed to measure the water temp, it may not be effective at measuring the temp when the tub is empty of water.

You would need to find an element with an integral overheat protection to capture if it was heating without water.

If your cold filling, it’ll take 2-3 hours to heat the water to 60C

Without a wiring diagram, it’s hard to tell what you could add to it, to safeguard it above what should’ve already been there.

On the earlier versions, both the timer, the pressure switch and the heater on button, all had to be closed to provide power to the element and thermostat. Perhaps Hoover had cheapened the design by then to keep the high current out of the timer.

 

[adam-aussie-vac]

Hopefully, they haven’t

Or at least somehow have just left the contacts there that way I could put a contactor in to handle the high current