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help troubleshooting Graco 20-35 pro hose heat problem. Post New Topic | Post Reply
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Posted: Mar 23, 2015 03:45 PM
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help troubleshooting Graco 20-35 pro hose heat problem.
I have a Graco h-35 pro with 300 feet of hose and a 10 foot whip.I am trying to find out why the breaker for the hose heat keeps tripping.When I start it up it will heat just fine while I am spraying foam and have the heat set around 120 F I can spray for hours sometimes a full day without it tripping although it does trip occasionally, however when I am spraying polyurea and have the heat set around 165 F it starts tripping around 150 F and after I reset it it seems to keep tripping at lower temps. I don't want to order the wrong replacement part as some of them are pretty pricey. I am not very proficient at troubleshooting electrical but I will do my best if you can describe any procedures in detail as if you were walking a child through the process. I wish I were kidding about this. Any help or advice would be appreciated. Thanks, Pat.
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SprayFoamSupply.com
Posted: Mar 24, 2015 07:03 AM
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You probably just have a loose connection in the hose. Check all of your connections. George |
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Randy Taff
Posted: Mar 24, 2015 11:02 AM
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I would first look for a short. If I didn't find a short I would replace the breaker. Old breakers that trip a few times get weak and will trip when a normal load is placed on them. I just had to replace the GFI breaker in my 20 year old house for this very reason. |
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Mark Mouton
Posted: Mar 26, 2015 08:42 AM
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If you wouldn't mind, let us know what you found to be the problem! |
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chad harris
Posted: Mar 31, 2015 05:35 PM
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Yes, please post if you find the issue. We have had the same issue for quite some time, and have replaced the breaker, and checked all the connections, still no luck! |
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Craig Gifford
Posted: Apr 16, 2015 07:17 PM
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300 feet at 165....that requires a lot of power....you may be overloading ...can you kick back to 250....+ you probably already know this but do you have your internal switches set for the appropriate length? Best of luck! |
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Insulman
Posted: Oct 04, 2016 03:57 PM
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I would recommend taking the ohm readings of your hose to ensure you don't have damaged Heater coils. |
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Rodger
Posted: Oct 10, 2016 02:34 PM
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Also check your tap settings on the transformer that it is set for 300 ft. |
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Commercial-Roofer
WHAT A GREAT BUSINESS TO BE IN! Posted: Nov 09, 2016 11:52 PM
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We had same problem , and how frustrating! Turns out one phase was intermittent. So when it stopped working after we chased out tail for days , we found a loose wire in the generator! So a 3 phase generator need to generate power on 3 phases , only 2 were working. So we tested the leads inside the connection box and had no power on one phase, so we looked carefully at all the wires , and found a small gauge exciter (?) Wire was rubbing against the side of the connector box, and burned A HOLE IN THE SIDE OF THE METAL BOX . So after spending 92,000 plus interest I lost thousands because the company who built these rigs used a generic generator ! Good luck |
