What would be some reasons for not building any heat? We have about 500 hours on the machine. We were cleaning a nasty restaurant last night and went to do some duel wanding and lost all heat. Any ideas?
how much flow did you have on both wands? i would guess you are bypassing some water or your flow rate is too high. My 870 will drop to 175 if i dual wand with high flow (10) wand and a zipper. Learning to just dry stroke a bit will help keep the heat around 200.