water pressure

[Guest]

any body had this problem before my water pressure started rising by its self had it set at 400 went out to the truck and it was at 700 by its self dont know what happenend couldnt remove the pressure lines may be something pluged can any one help thanks scott i have a steam way 9100 lx

 

[KevinD]

Isn't the 9100 a heat exchanger model. There should be some kind of high pressure pop off valve after the heat exchanger to prevent this. When you are not using water they will build pressure due to the extreme heat.