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Tiffin Motorhomes Knowledge Base

Generator Flex Power

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OWNER’S MANUAL
RVMP® Flex PowerTM
Dual Fuel Installed Generator

For 4,000 Watt Models: 4000i
RVMP-OEM-4L1-RV401•RVMP-AM-4L1-RV401
For 5,500 Watt Models: 5000i
RVMP-OEM-4L1-RV551•RVMP-AM-4L1-RV551

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Authorized for Installation ONLY in Recreational Vehicles Prepped by the RV
Manufacturer With Fuel Lines and a Compartment for Permanent Generator Installs.
Do NOT Install in Any Other Application.
Visit rvmp.co • Copyright© 2022 RV Mobile Power, LLC. - All Rights Reserved

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TABLE OF CONTENTS

Warranty 3
Introduction 5
General Guidelines 7
The Exhaust Produced By The Generator Is Deadly 7
Gasoline And Propane Are Flammable And Explosive 8
Gas Emitted From Batteries Is Explosive 9
Model Identification 9
Model Specifications 9
Generator Components 12
Removing the Access Cover 12
Generator Components 12
Securing the Access Cover 12
4000i Generator Control Panel 13
5500i Generator Control Panel 14
Remote Operation Panel 15
Operation 15
Breaking in a New Engine 15
Pre-Start Checks 15
Starting the Generator 16
Resetting Overload 17
Stopping the Generator 17
Connecting to Utility Power 18
Loading the Generator 18
Altitude Adjustment 20
Operating in Cold Weather 20
Operating in Hot Weather 20
Hot Ambient Air 21
Ventilation 21
Compartment Door Vents 22
Operating the Generator in a Motorized RV When Not Moving 24
Safe Temperature Operating Range 24
Operating in Dusty Environment 25
Conducting General Inspections 25
Exhaust System 25
Fuel System 26
Battery System 26
Mechanical Systems 26
Checking Engine Oil Level 27

Trouble Shooting 27
Maintenance 28
Resources and Tools Required 28
More Service Information 28
Maintenance Schedule 29
VFT Meter Service Codes 29
Fuel Recommendations 29
Propane (LP) Requirements 30
Engine Oil Recommendations 30
Starting Batteries 31
Exercising The Generator 31
Storing The Generator 31
Propane (LP) Storage 32
Returning the Generator to Service 33
Cleaning the Air Filter Element 33
Changing the Engine Oil 34
Maintaining the Battery and Battery Connections 35
Replacing the Spark Plug 35
Cleaning the Spark Arrestor 36
Electrical Wiring Diagram 37
RV Mobile Power, LLC Contact Info 40

 

2

FLEX POWER'S "THREE YEAR" LIMITED WARRANTY

FLEX POWER'S RESPONSIBILITY

RV Mobile Power, LLC (owners of “Flex Power”) warrants to the original purchaser that its Flex Power line of
inverter generators will be free from defects in material and workmanship. Under normal use and
maintenance from the date of purchase, and assuming all instructions for install were properly followed (see
Installation Manual) Flex Power agrees to repair or replace at Flex Power’s discretion, any defective product
free of charge at any authorized Flex Power Service Dealer within the below listed applications, time periods,
limitations, and exclusions. THIS LIMITED WARRANTY IS EXTENDED TO THE ORIGINAL PURCHASER ONLY
AND IS NOT TRANSFERABLE TO SUBSEQUENT OWNERS EXCEPT FOR EMISSION RELATED PARTS. This
warranty is separate from the Emission Control Warranty Statement supplied with your new product. Please
consult the Emission Control Warranty Statement for details regarding emission related parts.

OWNER'S RESPONSIBILITY

To ensure trouble free warranty coverage it is important that you register your generator. You may register
on-line at the links presented below or by filling out and returning to Flex Power the warranty registration
card supplied with your generator. Registering your product confirms your warranty coverage and provides a
direct link between you and Flex Power if we find it necessary to contact you. Please visit www.rvmp.co to
complete your warranty registration information. Specifically for each model:

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Your receipt of purchase including date, model, and serial number must be maintained and presented to a Flex Power Authorized Service Dealer for warranty service. Proof of purchase rests solely with you, the original purchaser.

PRODUCT WARRANTY APPLICATIONS AND PRODUCT WARRANTY PERIODS

Consumer Application
For the purpose of this limited warranty “Consumer Application” means usage by the original purchaser for
the purpose of use as an installed power source in recreational vehicles.
Qualifying unit exchange will be covered for a period of (1) year from the date of purchase. Replacement
parts will be covered (2-3) years from the date of purchase.
If proof of purchase is not available to establish the purchase date nor is the equipment registered as
suggested herein, the date of manufacturing as recorded by Flex Power will start the product warranty
period.
Commercial or Rental Applications
For the purpose of this limited warranty “Commercial Application” means usage by the original purchaser for
the purpose of income producing, business related use. Once a generator has been used for income
producing and business related purposes, it shall thereafter be considered a “Commercial Application” and
the warranty as outlined above will apply, with the following additions/changes.
Unit exchange will be covered for a period of (1) year from the date of purchase. Replacement parts will be
covered (2-3) years from the date of purchase. If proof of purchase is not available to establish the purchase
date nor is the equipment registered as suggested herein, the date of manufacturing as recorded by Flex
Power’s will start the product warranty period.

NON-WARRANTABLE APPLICATIONS - THE FLEX POWER LINE OF INVERTER GENERATORS ARE EXPRESSLY NOT RECOMMENDED FOR NOR WARRANTED FOR THE FOLLOWING APPLICATIONS:

Medical and Life Support Uses – This product is not recommended for and is NOT warranted for the use to power Medical and Life Support equipment or similar devices.

4

Introduction

The Flex Power line of generators can power various RV appliances including AC motors, air conditioners, refrigerators, AC/DC converters and many other RV appliances. The load on the generator depends on the power rating. The generator will shut down or its circuit breaker(s) will trip if the sum of the loads exceeds the power limit of the generator.

For information on the assembly or individual components of this product, please visit: www.rvmp.co or email us at support@rvmp.co.
NOTE: Images used in this document are for reference only when assembling, installing and/or operating this product. Actual appearance of provided and/or purchased parts and assemblies may differ.

Safety

Read and understand all instructions before installing or operating this product. Adhere to all safety labels. This manual provides general instructions. Many variables can change the circumstances of the instructions, i.e., the degree of difficulty, operation and ability of the individual performing the instructions. This manual cannot begin to plot out instructions for every possibility, but provides the general instructions, as necessary, for effectively interfacing with the device, product or system. Failure to correctly follow the provided instructions may result in death, serious personal injury, severe product and/or property damage.

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