Boxxer 421
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Category: Carpet Cleaners Discussion
Forum Name: Carpet Cleaners Hangout
Forum Description: General discussion on anything related to carpet cleaning
URL: https://www.kleenkuip.com/forum/forum_posts.asp?TID=3348
Printed Date: 23/August/2025 at 4:09pm
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Topic: Boxxer 421
Posted By: ezebill
Subject: Boxxer 421
Date Posted: 05/January/2007 at 9:26pm
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i have a boxxer 421 with 78 hours, it primes up fast but as soon as i turn over to the on position i can't draw much if any chemical. I rinsed with viniger and it helped but still can only get 3 - 4 gph, my filters under the brass nuts are both clean but the water is just drizzling out and is suppose come out in a small steady stream. The unit doesn't seem to be holding as much heat either.
I live 1 hour 15 minutes from the dealer, can anybody help. Please. |
Replies:
Posted By: MR. STEAMER
Date Posted: 05/January/2007 at 9:30pm
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sounds like you have a leak somewhere....... your loosing water...maybe a solenoid....maybe the bypass is open......
what have you tried so far??? ------------- www.mr-steamer.com |
Posted By: ezebill
Date Posted: 05/January/2007 at 9:37pm
| i have checked all the fitting for leaks nothing, i have flushed with viniger which seemed to help a little i have checked the water flow from the mixing tank to the high pressure side lots of water, i have taken off the flow adjustment knob lots of water i ran the machine and checked for water at both filters when machine is running lots of water, i checked the check vales niether broken or stuck. the dealer says an orfice is plugged somewhere and pretty soon his orfice is going to be plugged as i was happy with the machine but now i'am starting to wonder if i made a good choice. |
Posted By: MR. STEAMER
Date Posted: 05/January/2007 at 9:44pm
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I'm not firmiliar with your unit...but they are all the same trust me...
your chemical feed is loosing pressure because water is dumping someplace...your loosing heat because water is dumping someplace...
if you can find the solenoid open it and clean it out........
do you run out of water quickly on a job??? ------------- www.mr-steamer.com |
Posted By: doug
Date Posted: 05/January/2007 at 9:48pm
I am not that familuar with HM but get your manual out and follow the water diagram to where you come accross an oriface it could be plugged. On Pro Chem you need to take off usually a brass plug and behind it will be an oriface you will probably need an allen wrench take it out and check to see if it is plugged hard water will cause this very quickly. In the past I have used a needle to open the oriface. Are you using soft water in this unit. ------------- Just My opinion |
Posted By: Ken Harris
Date Posted: 05/January/2007 at 10:00pm
| Run phosheric acid thru it, not vinegar. Vinegar is to weak. Rinse the phospheric acid out after 60 minutes. Any scale will then be gone. |
Posted By: MR. STEAMER
Date Posted: 05/January/2007 at 10:02pm
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say if it's a small stone??????
------------- www.mr-steamer.com |
Posted By: ezebill
Date Posted: 05/January/2007 at 10:04pm
| i don't have a fresh water tank i always use a garden hose to my machine as far as finding an office, every fitting i have taken apart they are just a fitting or a hydrolic type connector. in BC we have soft water, another thing that puzzels me is that when the unit does go into bypass the chemical jumps up to 6 as soon as it finishes dumping the heat the chemical again will drop to around 3 and i can't get it up(ha ha ) the chemical |
Posted By: doug
Date Posted: 05/January/2007 at 10:07pm
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Apparently not soft enough? ------------- Just My opinion |
Posted By: ezebill
Date Posted: 05/January/2007 at 10:07pm
| would phosphic acid not be hard on all the seals? If not where would it be available? |
Posted By: doug
Date Posted: 05/January/2007 at 10:09pm
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Just get a descaler from you distributor and be on the safe side? ------------- Just My opinion |
Posted By: Ken Harris
Date Posted: 05/January/2007 at 10:11pm
| The distributor descaler IS phosphoric acid. |
Posted By: cmaster
Date Posted: 05/January/2007 at 10:13pm
Shouldn't be hard on seals. Maybe on the metals  ------------- 
The STD Meter |
Posted By: Ken Harris
Date Posted: 05/January/2007 at 10:25pm
Only IF you leave it in longer than 60 minutes. Then it corrodes metals. |
cmaster wrote:Posted By: cmaster
Date Posted: 05/January/2007 at 10:54pm
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My point exactly. Not hard on the seals -------------
The STD Meter |
Posted By: ezebill
Date Posted: 05/January/2007 at 11:05pm
| thanks for all the help tommorow i will try all your options if not it's off to Vancouver we go thanks again |
Posted By: MR. STEAMER
Date Posted: 06/January/2007 at 7:59am
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still think it could be a small stone ------------- www.mr-steamer.com |
Posted By: JACK ZERKIE
Date Posted: 06/January/2007 at 5:07pm
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COULD MAYBE YOUR CHEMICAL JUG WAS DRY OR THE HOSE WAS ABOVE THE CHEMICAL IN THE JUG THEN THE DIAPHRAM WAS DAMAGED IN THE PUMP IF YOUR UNIT HAS ONE.
JACK Z. CAPE CORAL FLORIDA 
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Posted By: cleanex
Date Posted: 07/January/2007 at 10:56am
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Doug hit it on the head the 421 has 2 orifaces that need to be cleaned regularly, 2 brass nuts on front of machine, remove 1 at a time make sure they are clean a good waterflow is present, if we run into a flow or heat problem 99% of the time it is a blocked oriface. We have 2 of these units and it is important to keep the orifaces clean ------------- DON ELDRED YOU CAN "STAND" ON OUR REPUTATION |
Posted By: MR. STEAMER
Date Posted: 07/January/2007 at 11:26am
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Cleanex and doug are most likely right....Cleanex and steam way go a long way back....
Tell us how it works out...we are all dying to know.... ------------- www.mr-steamer.com |
Posted By: ezebill
Date Posted: 07/January/2007 at 3:58pm
| Thanks to all, i found the problem it was a stuck check valve inline from the primary and secondary filters just prior to the high pressure outlet for hooking up the pressure hose. Thanks again for all the help and suggestions, this is what great forums like this are for. off to work i go. Ezebill |