Here is another link to trouble shooting the problem.It still sounds like the unloader(pressure adjuster) is not working.The model number on the landa presure washer iszg2-115421,with a b&s 3.5 model 9 hh engine.
thanks for the reply. I actually have the schematic on it already. I had to replace the rectifier a while back b/c it wasn't making 12 volts to turn the burner on. If you call Karchers customer service line they will tell you its for dealers only and that you have to call elsewhere. I did remove the cover from the blower motor and it is wet in there. Also the little piece that looks like an old school cigarette lighter had some rust covering over it. -Can you see the photos attached?The heater is of same design as a furnace, just runs on 12v instead (on the ones I've seen). If you talk nice to a Landa dealer, they may send you an owner's manual PDF which has a schematic in it.
I've repaired these, but never had a breaker blowing problem - only loss of heat or no heat. There are only 2 items that draw current to any degree, the blower motor and the transformer. I'd start by taking the transformer cover off to see if there's any oil buildup in there causing a short.
BTW Landa is owned by Karcher, who pretty much owns a lot of the brands out there.
Ok, now you're saying something different. Is it the breaker is blowing, or is it just that the fire is quitting? Yes, that's a flame sensor, even gas clothes dryers and Reddy heaters have one.High Limit Hot Water Thermostat:
For safety, each machine is equipped with a high limit
con trol switch. In the event that the temperature of the
water should exceed its operating temperature, the high
limit con trol will turn the burner off until the water cools.
I am wondering if this is happening?? This is out the owners manual. It does look like there is fire coming out of the burner area like its possible its getting 2 hot. Im spittballing here.