davegreene99
Member
Our Mainship has become hard to start, and I believe that the air inlet heater grid is not being energized. I want to find a wiring diagram for the Heater Control Unit to the Heater Grid.
Mainship Cummins Engine Heater Control Unit
- Thread starter davegreene99
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jleonard
Guru
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Post that in www.boatdiesel.com and you,ll get a reply with the diagram. It is simple. Probably a bad relay.
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- Vessel Name
- Pau Hana
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- 1989 PT52 Overseas Yachtfisher
A quick test- locate the 2 wires on the inlet air preheater grid, disconnect the heater at the heater grid and retest. The heater grid is right below the air intake.
Or, remove this fuse:
Controlling the Air Heater Circut on your B & C Series Cummins
- Joined
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- Location
- Good Ol' US of A!
- Vessel Name
- Pau Hana
- Vessel Make
- 1989 PT52 Overseas Yachtfisher
Dave, except for wintertime runs, you can safely operate without the preheaters. I used to keep a small heater in my engine room so the ambient temp remained about 60 degrees.
Otherwise, a wolverine magnetic heater works well to keep the engine warm.
Otherwise, a wolverine magnetic heater works well to keep the engine warm.
