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>> Download our Onan / Crusair Troubleshooting Guides

New Replacement Controls

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The latest addition to our line of replacements for Onan® RV Gen Set Controls is the 56-4320-00. This is a direct replacement for the Onan® 300-4320 used in Microlite Model KY, Spec. B-E.

Also offered is the 56-4923-00. An exact replacement for Onan® P/N 300-4923, this control fits Microlite Model KY, Spec. F-H.

As with all our replacement controls, these are built in the USA with top-quality materials. These new controls have been re-designed and improved to eliminate known problems with the AC voltage sensing circuit. Our modules are environmentally sealed in automotive-grade urethane and feature a two-year warranty.

Visit our website to view a complete list of our
replacement Onan® controls.

New Test Equipment

For quick Onan RV Gen Set troubleshooting, the sensible solution is the new Point-MAN RV Regulator Breakout Box. The Point-MAN simply plugs in between the generator and the regulator giving you easy access to eight key circuits needed for effective troubleshooting. It provides the necessary circuit access while your multi-meter does the rest.

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Model 540 Remote Display Panel

For years, our popular Model 540 Controller has been a cost-effective, easy solution for replacing obsolete or unreliable gen set controls. By popular demand, we now offer a Remote Annunciator Display Panel for use with the Model 540.

24V Grasslin Exercise Timer

Thanks to your requests, we are now stocking the Grasslin FM1D20-24 24V Exercise Timer (in addition to the 120V version we've been stocking for years).

New Repair Services

Generac® OD2815 "H" Panel

A long-awaited addition to our Rebuilding Service is the Generac OD2815 “H” Panel. We can rebuild this widely-used and complex controller for less than 1/3 the cost of a new unit – and support it with a one-year warranty.

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Kohler® GM64497 "Blue" Board Controller

We now rebuild this upgrade of the widely-used GM28725 “Red” Board we also service. Another addition to our Kohler reman program is the GM34433 (RSA1000) Display.

Thompson Technology® MEC20 Engine/Generator Controller

We can also service the earlier MEC2 version.

Controls Inc.® Engine/Generator Controllers

We can rebuild most varieties of these units.

Micro Design® NP47 Propane Tank Monitor

These are widely-used to monitor propane levels at remote gen set sites and we can now rebuild them for a fraction of the new cost.

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Engine Cost Saver – Model 1550

  • Allows "live" monitoring of engine parameters as well as trip point settings on a PC (see sample screen) via a standard 9 pin serial port on the unit
  • Reduces wear – has a user selectable built-in cool down feature which allows a hot turbo to cool down as recommended by most engine manufacturers
  • Saves fuel – has a user selectable built-in Idle Limiter that will shut the engine down if left idling unattended for more than 5 minutes
  • Immediately detects leaky or blown head gaskets, radiator clogs, broken water pump impellers
  • Check out the Engine Cost Saver Manual
  • See full features and specifications
available-now
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Customer Service 800-403-3728 | FAX 800-333-9912
All other calls 717-932-9900 | Fax 717-932-9925
505 Fishing Creek Rd. Lewisberry, PA 17339
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