--- title: Troubleshooting GPI Pump Motor That Stalls While In Bypass description: If your GPI Fuel Transfer Pump's motor stalls while in bypass mode, try these things to get that problem corrected. --- [Skip to content](https://support.farmchem.com/knowledge-base/how-to-fix-gpi-pump-motor-stalling-while-in-bypass#main-content) [![FarmChem Logo Supporting Hands Black](https://support.farmchem.com/hs-fs/hubfs/FarmChem%20Logo%20Supporting%20Hands%20Black.webp?width=275&height=68&name=FarmChem%20Logo%20Supporting%20Hands%20Black.webp)](https://support.farmchem.com/knowledge-base?hsLang=en) - [Shop](https://farmchem.com/) - [Blog](https://support.farmchem.com/blog) - [About Us](https://farmchem.com/about-us) - [Tender Trailer Tool](https://farmchem.com/tender-trailer-tool/) - [Knowledge Base](https://support.farmchem.com/knowledge-base) Open main navigation Close main navigation - [Shop](https://farmchem.com/) - [Blog](https://support.farmchem.com/blog) - [About Us](https://farmchem.com/about-us) - [Tender Trailer Tool](https://farmchem.com/tender-trailer-tool/) - [Knowledge Base](https://support.farmchem.com/knowledge-base) - [Contact us](https://farmchem.com/contact-us/) [Contact us](https://farmchem.com/contact-us/) How can we help you? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://support.farmchem.com/knowledge-base?hsLang=en) 2. [Helpful Videos](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en) 3. [Repairs & Maintenance](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#repairs-maintenance) # Troubleshooting GPI Pump Motor That Stalls While In Bypass ## If your GPI Pump stalls, here's all you can do to correct the situation. If your GPI pump is stalling in bypass mode, try these things. Before you start, check the pump model by checking the nameplate on the pump. Generally this located on the back of the motor or on top of the pump housing. - On select models, the safe stop time will activate after 30 minutes of running in bypass. Turn the pump off and allow it to cool down for 30 minutes before attempting to use again. - Check to see if the pump wiring is properly connected to a good electrical power source. Use caution and avoid electrical shocks. Do not touch exposed or frayed wires. For increased safety, turn off the pump and unplug it from its power source while checking over the pump. ***If you have an AC fuel pump, have a licensed electrician inspect power wiring.*** - Check the bypass poppet, rotor, vanes and gears for binding, wear or damage. ***If you need to replace a rotor, gear or vane, use the links below to go to the walkthrough on how to do that with your pump type*** **EZ-8 Series** [Clean or replace gears](https://support.farmchem.com/knowledge-base/how-to-replace-gears-on-a-gpi-ez-8-pump?hsLang=en) [Clean or replace bypass poppet](https://support.farmchem.com/knowledge-base/how-to-clean-or-replace-bypass-poppet-on-gpi-ez-8-pump?hsLang=en) **G20 Series** [Clean or replace gears](https://support.farmchem.com/knowledge-base/how-to-clean-or-replace-strainer-on-a-gpi-m150-fuel-transfer-pump?hsLang=en) [Clean or replace bypass poppet](https://support.farmchem.com/knowledge-base/how-to-clean-or-replace-bypass-poppet-on-a-gpi-g20-fuel-transfer-pump?hsLang=en) **M-Series** [Clean or replace gears](https://support.farmchem.com/knowledge-base/how-to-clean-or-replace-gears-on-a-gpi-m150-pump?hsLang=en) [Clean or replace bypass poppet](https://support.farmchem.com/knowledge-base/how-to-clean-or-replace-bypass-poppet-on-a-gpi-m150-pump?hsLang=en) **V25 Series** [Clean or replace vanes](https://support.farmchem.com/knowledge-base/v25-how-to-clean-or-replace-vanes-gpro-maintenance-repair-series?hsLang=en) [Clean or replace bypass poppet](https://support.farmchem.com/knowledge-base/how-to-clean-or-replace-bypass-poppet-gpi/gpro-maintenance-repair-series?hsLang=en) **PRO20/35 Series** [Clean or replace vanes](https://support.farmchem.com/knowledge-base/how-to-clean-or-replace-vanes-on-a-gpro-pro20/pro35?hsLang=en) [Clean or replace bypass poppet](https://support.farmchem.com/knowledge-base/how-to-clean-or-replace-bypass-poppet-on-a-gpro-pro20/pro35-pump?hsLang=en) --- [**Offerings covered by this post:**](https://farmchem.com/product/115v-230v-pro35-115-qm40-combo-w-1-automatic-nozzle-35-gpm-pro35-115ad-qm40g8n/)[GPI EZ-8 12V Fuel Transfer Pump, 3/4″ Manual Nozzle & 10′ Hose (8 GPM) – EZ-8 (Direct Mount)](https://farmchem.com/product/ez-8-12v-fuel-transfer-pump-3-4-manual-nozzle-10-hose-8-gpm-ez-8-direct-mount/) [GPI G20 12V Fuel Transfer Pump Only (20 GPM) – G20-012PO](https://farmchem.com/product/g20-12v-fuel-transfer-pump-only-20-gpm-g20-012po/) [GPI G20 12V Fuel Transfer Pump, 1″ Manual Nozzle, 14′ Hose & Spin Collar Mount (20 GPM) – G20-012MD](https://farmchem.com/product/g20-12v-fuel-transfer-pump-1-manual-nozzle-14-hose-spin-collar-mount-20-gpm-g20-012md/) [GPI G20 12V Fuel Transfer Pump, 1″ Auto Nozzle, 14′ Hose & Spin Collar Mount (20 GPM) – G20-012AD](https://farmchem.com/product/g20-12v-fuel-transfer-pump-1-auto-nozzle-14-hose-spin-collar-mount-20-gpm-g20-012ad/) [GPI M-150 12V Fuel Transfer Pump Only (15 GPM) – M150S-E-PO](https://farmchem.com/product/m-150-12v-fuel-transfer-pump-only-15-gpm-m150s-e-po/) [GPI M-150 12V Fuel Transfer Pump, 3/4″ Manual Nozzle & 10′ Hose (15 GPM) – M-150S-EM](https://farmchem.com/product/m-150-12v-fuel-transfer-pump-3-4-manual-nozzle-10-hose-15-gpm-m-150s-em/) [GPI M-150 12V Fuel Transfer Pump w/12″ hose, 3/4″ Manual Nozzle & Spin Collar Mount (15 GPM) – M-150S-MU](https://farmchem.com/product/m-150-12v-fuel-transfer-pump-w-12-hose-3-4-manual-nozzle-spin-collar-mount-15-gpm-m-150s-mu/) [GPI M-150 12V Fuel Transfer Pump, 3/4″ Auto Nozzle, 12′ Hose & Spin Collar Mount (15 GPM) – M-150S-AU](https://farmchem.com/product/m-150-12v-fuel-transfer-pump-3-4-auto-nozzle-12-hose-spin-collar-mount-15-gpm-m-150s-au/) [GPI 115V M-1115S-AU Fuel Transfer Pump, 3/4″ Manual Nozzle & Spin Collar Mount (12 GPM) – M-1115S-MU](https://farmchem.com/product/115v-m-1115s-au-fuel-transfer-pump-3-4-manual-nozzle-spin-collar-mount-12-gpm-m-1115s-mu/) [GPI 115V M-1115S-AU Fuel Transfer Pump, 3/4″ Auto Nozzle & Spin Collar Mount (12 GPM) – M-1115S-AU](https://farmchem.com/product/115v-m-1115s-au-fuel-transfer-pump-3-4-auto-nozzle-spin-collar-mount-12-gpm-m-1115s-au/) [GPI V25 12V Fuel Transfer Pump Only (25 GPM) – V25-012PO](https://farmchem.com/product/v25-12v-fuel-transfer-pump-only-25-gpm-v25-012po/) [GPI V25 12V Fuel Transfer Pump, 1″ Manual Nozzle, 18′ Hose & Tank Adapter Mount (25 GPM) – V25-012MD](https://farmchem.com/product/v25-12v-fuel-transfer-pump-1-manual-nozzle-18-hose-tank-adapter-mount-25-gpm-v25-012md/) [GPI V25 12V Fuel Transfer Pump, 1″ Auto Nozzle, 18′ Hose & Tank Adapter Mount (25 GPM) – V25-012AD](https://farmchem.com/product/v25-12v-fuel-transfer-pump-1-auto-nozzle-18-hose-tank-adapter-mount-25-gpm-v25-012ad/) [GPI PRO20 115V Fuel Transfer Pump, 1″ Manual Nozzle, 18′ Hose & Tank Adapter Mount (20 GPM) – PRO20-115MD](https://farmchem.com/product/pro20-115v-fuel-transfer-pump-1-manual-nozzle-18-hose-tank-adapter-mount-20-gpm-pro20-115md/) [GPI PRO20 115V Fuel Transfer Pump w/QM Meter (20 GPM) – PRO20-115PO/QM40G8N](https://farmchem.com/product/115v-fuel-transfer-pump-w-qm-meter-20-gpm-pro20-115po-qm40g8n/) [GPI PRO20 115V Fuel Transfer Pump w/QM Meter, 18′ Hose & 1″ Auto Nozzle (20 GPM) – PRO20-115AD/QM40G8N](https://farmchem.com/product/pro20-115ad-qm40g8n/) [GPI PRO20 115V Fuel Transfer Pump, 1″ Auto Nozzle, 18′ Hose & Tank Adapter Mount (20 GPM) – PRO20-115AD](https://farmchem.com/product/pro20-115v-fuel-transfer-pump-1-auto-nozzle-18-hose-tank-adapter-mount-20-gpm-pro20-115ad/) [GPI 115V/230V PRO35-115AD Fuel Transfer Pump, 1″ Auto Nozzle & 18′ Hose (35 GPM) – PRO35-115AD](https://farmchem.com/product/115v-230v-pro35-115ad-fuel-transfer-pump-1-auto-nozzle-18-hose-35-gpm-pro35-115ad/) [GPI 115V/230V PRO35-115 & QM40 Combo, No Nozzle (35 GPM) – PRO35-115PO/QM40G8N](https://farmchem.com/product/115v-230v-pro35-115-qm40-combo-no-nozzle-35-gpm-pro35-115po-qm40g8n/) [GPI 115V/230V PRO35-115 & QM40 Combo w/1″ Automatic Nozzle (35 GPM) – PRO35-115AD/QM40G8N](https://farmchem.com/product/115v-230v-pro35-115-qm40-combo-w-1-automatic-nozzle-35-gpm-pro35-115ad-qm40g8n/)         - [What is AgriPerks?](https://support.farmchem.com/knowledge-base/what-is-agriperks?hsLang=en) - [FarmChem Policy](https://support.farmchem.com/knowledge-base/farmchem-policy?hsLang=en) - [FAQ's](https://support.farmchem.com/knowledge-base/faqs?hsLang=en#main-content) - [DEF FAQ's](https://support.farmchem.com/knowledge-base/faqs?hsLang=en#def-faqs) - [Chem FAQ's](https://support.farmchem.com/knowledge-base/faqs?hsLang=en#chem-faqs) - [General](https://support.farmchem.com/knowledge-base/faqs?hsLang=en#general) - [Helpful Videos](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#main-content) - [Repairs & Maintenance](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#repairs-maintenance) - [Product Installation](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#product-installation) - [Calibration](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#calibration) - [Product Overview](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#product-overview) - [Winterization](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#winterization) - [Assembly](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#assembly) - [Walkthrough](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#walkthrough) - [Product Manuals & Schematics](https://support.farmchem.com/knowledge-base/product-manuals-schematics?hsLang=en#main-content) - [Calibration](https://support.farmchem.com/knowledge-base/product-manuals-schematics?hsLang=en#calibration) - [Closure Instructions](https://support.farmchem.com/knowledge-base/product-manuals-schematics?hsLang=en#closure-instructions) - [Product Manuals](https://support.farmchem.com/knowledge-base/product-manuals-schematics?hsLang=en#product-manuals) ## Contact **Sales & Support:** *💬 8AM – 5PM CST (M-F)* ☎ [(800)-247-1854](tel:8002471854) ✉ [Contact Us Form](https://farmchem.com/contact-us/) **Iowa Location** *📍 1017 Pearl Street, Floyd, IA 50435* **Tennessee Location** *📍 5558 Federal Ave, Memphis, TN 38118* ## Services - [Customer Portals](https://farmchem.com/customer-portals/) - [JDDEF Equipment](https://farmchem.com/jddef/) - [Senergy Equipment](https://farmchem.com/senergy/) - [Tank Monitoring](https://farmchem.com/tank-monitoring/) - [Plant Automation](https://farmchem.com/plant-automation/) - [Bulk Chem Facilities](https://farmchem.com/bulk-chemical-facilities/) - [Bulk Seed Facilities](https://farmchem.com/bulk-seed-facilities/) - [Custom Engineering](https://farmchem.com/custom-engineering/) - [FarmChem E-Quip](https://farmchem.com/e-quip/) - [All Services](https://farmchem.com/services/) ## Explore - [About Us](https://farmchem.com/about-us/) - [Customer Reviews](https://farmchem.com/reviews/) - [Terms Of Service](https://farmchem.com/terms-of-service/) - [Privacy Policy](https://farmchem.com/privacy-policy/) - [Shipping & Returns](https://farmchem.com/shipping-and-returns/) - [Online Catalog](https://farmchem.com/catalog/) - [Knowledge Base](https://support.farmchem.com/knowledge-base/?hsLang=en) - [Spray Tip Finder](https://farmchem.com/spray-tip-finder/) - [Tender Trailer Tool](https://farmchem.com/tender-trailer-tool/) - [Customer Account Form](https://farmchem.com/customer-account-form/) ![FarmChem Logo](https://farmchem.com/wp-content/uploads/2024/07/farmchem-logo.webp) ![SSL Secure Website](https://farmchem.com/wp-content/uploads/2024/07/ssl-secure-website.webp) ![Accepted Credit Cards](https://farmchem.com/wp-content/uploads/2024/07/credit-cards.webp) Copyright © 1974 – 2026 FarmChem® | All Rights Reserved