EP Equipment LPE50-70SLithium-Ion 4-Wheel Electric Forklift

Name: EP Equipment LPE50-70S
Brand: EP Equipment

LPE Series

tires

Pneumatic

wheels

4-Wheel

battery

Lithium-Ion

capacity

5000-7000 lb

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Product Overview

5,000-7,000 lb. Capacity Integrated Lithium-ion Four-Wheel Pneumatic Electric Forklift (OEM equivalent for Big Joe Forklifts)

Technical Specifications

Specification	Value
tires	Pneumatic
wheels	4-Wheel
battery	Lithium-Ion
capacity	5000-7000 lb

Available Parts

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Fault Codes & Troubleshooting

Search for error codes displayed on your LPE50-70S to find causes and solutions. Click on any code to expand details.

Showing 28 of 28 fault codes

Code	Description	Solution	Guide
F1.1	Motor Temp Hot Cutback	Reduce load, allow motor to cool. Check ventilation and ambient temperature.	View Guide
F1.2	Throttle Fault	Inspect throttle wiring and potentiometer. Replace if defective.	View Guide
F1.3	Undervoltage Cutback	Charge battery. Check battery connections for corrosion or looseness.	View Guide
F1.4	Overvoltage Cutback	Check battery voltage level. Inspect connections for intermittent contact.	View Guide
F1.5	Severe Overvoltage	Check battery - may be overcharged. Verify charger settings.	View Guide
F1.6	Severe Undervoltage	Battery critically low - charge immediately or replace battery.	View Guide
F2.1	SRO Fault	Check interlock switch wiring and operation. Replace if damaged.	View Guide
F2.2	EMR Sequencing Fault	Release all controls before startup. Check inching switch.	View Guide
F2.3	Main Driver Fault	Controller service required. Check main relay connections.	View Guide
F2.4	Main Relay Welded	Controller replacement required - internal relay damage.	View Guide
F2.5	Main Relay DNC	Clean relay contacts or replace controller.	View Guide
F2.6	Pump SRO Fault	Release all hydraulic controls before starting.	View Guide
F3.1	Wiring Fault	Recalibrate throttle. Inspect wiring and mechanical linkage.	View Guide
F3.2	Brake On Fault	Check brake coil resistance and driver circuit.	View Guide
F3.3	Precharge Fault	Controller service or replacement required.	View Guide
F3.4	Brake Off Fault	Check brake wiring and coil. Replace if shorted.	View Guide
F3.5	HPD Fault	Follow proper startup sequence. Check throttle input.	View Guide
F4.1	Current Sense Fault	Controller replacement required.	View Guide
F4.2	Controller Overcurrent	Check motor connections. Controller may need replacement.	View Guide
F4.3	Hardware Fault	Controller failure - replacement required.	View Guide
F4.4	Software Fault	Controller reprogramming or replacement required.	View Guide
F4.5	Battery Disconnect	Check all battery connections and terminals.	View Guide
F4.6	Motor Fault	Allow motor to cool. Check for overloading or blocked ventilation.	View Guide
F5.1	Failed Low BDI	Charge battery immediately.	View Guide
F5.2	Controller Overtemp	Reduce load, improve ventilation, allow cooling.	View Guide
F5.3	Controller Severe Overtemp	Stop operation immediately. Allow significant cooling time.	View Guide
F6.1	Motor Short	Inspect motor phase wiring. Check for damaged insulation.	View Guide
F6.2	Motor Open	Check motor connections and cable continuity.	View Guide

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