Pump is probably an AR RMV2.2G24 or similar. I'll pull the unloader off one of mine to see if it moves. Pretty sure it takes a lot of force to move (2600 PSI) but I'll check anyway.
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, NO matter, From what I know about pressure washers, YOUR particular model of pump is ... at the very least, QUESTIONABLE. I've read on several forums to avoid this type of unit,the Honda engines are a SUPERB choice of leading washer makers, I have one on my unit,BUT that particular style pump is NOT well liked, I'm at a loss as what to tell you....... I don't want to see you throw away money into a never ending situation, I don't know of your financial resources, but me.. I myself would get the unit back, then if you REALLY need a P/W I would rent one until you save enough to buy a NEW,.. GOOD model, ( $500.00 - $800.00 ) or find a GOOD used one from a P/W dealer or mower shop, maybe you could sell the engine and the rest as a parts unit and recoup some of your money, YOUR CALL,, BUT that's MY opinion. I think your model pump, as most good pumps are, was oil lubricated, the bearings could have gone out from lack of or low oil, also if you did NOT have water going to the pump (after bleeding the air out ) that too could have caused your breakdown, ( that is stated in your owners guide.. which I read over ) There is also a pump up-grade and an oil-less model, but I would still write it off .... Sorry Pammy, Read through what I'm sending and think carefully which road you're going to go, ... Keep us informed, we will be here to help in any we can .... Boo