Blueward Marine services and repairs Kohler (Rehlko) marine generators in Palma, Mallorca and across the Balearic Islands. Book online, describe the fault and upload photos so our AI technical assistant can prepare the job brief. For a breakdown, call our 24/7 emergency line and we will arrange an engineer to attend the yacht.
Emergency response
2 hours · 24/7
Assessment & quote
Within 2 hours
Coverage
Palma-based · mobile throughout the Balearics
Part of our service
GeneratorsThe Rehlko marine catalogue includes pleasure-craft diesel generator models such as 12EFKOZD, 14EKOZD, 16EKOZD and 20.5EFKOZD, in one- and three-phase variants where listed. Identifying the exact set and electrical configuration is the starting point for any service plan.
The 33EFOZDJ is listed as a 50 Hz, 33 kW diesel marine generator with a Decision-Maker 3500 controller and a four-pole rotating-field alternator. Control and output checks must therefore be considered alongside engine work on this configuration.
For the 45EFOZDJ, Rehlko's technical literature describes heat-exchanger, keel-cooled and radiator configurations. The heat-exchanger arrangement uses a wet exhaust bend, while the keel-cooled arrangement uses a dry exhaust bend.
The Decision-Maker 3500 on the documented EFOZDJ set provides a graphical display of power metering and records warning and shutdown events. That information is useful when tracing an intermittent trip or a load-related complaint.
We carry out routine maintenance in line with the manufacturer schedule and the set's running hours. This includes condition checks of lubricating oil, filters, belts, hoses, exhaust components and the engine-space installation.
We inspect the raw-water path, pump, heat exchanger or keel-cooling circuit as fitted, coolant circuit and exhaust-water discharge. Salt deposits, restricted flow, leaks and degraded hoses are addressed before they become a shutdown issue.
Our engineers investigate difficult starting, fuel restriction and irregular running through the supply, filtration, battery, charging and starting circuits. We test the cause rather than replacing parts on assumption.
We diagnose unstable voltage, frequency concerns, breaker trips, alarms and remote-panel reports. Checks cover loading, connections, protective devices, alternator output and controller information as applicable to the installed set.
We carry out repair work and then prove starts, cooling and electrical output under suitable load. Before seasonal use or after a lay-up, we assess the generator's condition and deal with defects found.
Book online, upload photos of the problem and our AI technical assistant asks the follow-up questions an engineer would ask. Our team receives a structured job brief, so the right technician arrives with the right parts.
Book online with photos| What you notice | Usual cause |
|---|---|
| The generator cranks but will not start, or starts then stops. | We first check battery condition and isolation, start-circuit voltage drop, fuel supply and filtration, stop inputs and the alarm information. The inspection then follows the evidence rather than repeated cranking. |
| The set is running hot, has a high-temperature warning, or there is little water at the wet exhaust. | We first inspect the seawater intake path, strainer, pump and impeller, then coolant level, leaks and heat exchange. On a wet-exhaust installation, reduced discharge is treated as a cooling fault until proved otherwise. |
| Voltage is unstable, a breaker trips, or the generator will not carry normal hotel load. | We start by measuring the connected load and output, then inspect breaker condition, cabling and terminations. Alternator output, sensing and control information are checked only after the installation and load condition are understood. |
| The Decision-Maker 3500 panel has raised an alarm or shut the set down. | We record the displayed code and event information before clearing anything, then check the associated engine, cooling or electrical condition. Repeated resets can obscure the sequence needed to find the cause. |
This is a guide, not a diagnosis. If anything affects safety, stop and call us on +34 971 251 374.
The more of this we have, the better our chances of arriving with the right parts. The online booking asks for it step by step.
Yes. Our mobile engineers attend yachts at berths, in shipyards and at anchorages in Mallorca and throughout the Balearic Islands. Access, safe isolation and a clear description of the fault help us plan the attendance. Send the location, model and serial number, panel photographs and any alarm code when you book.
The scope follows the manufacturer schedule and starts with the exact model and running hours. It can include fluid and filter work, inspection of belts, hoses, cooling and fuel systems, battery and starting circuits, exhaust condition and electrical output. We record faults found and discuss repair work before proceeding.
Note the alarm or fault code, running condition and connected load, then take photographs of the panel if it is safe to do so. Do not repeatedly reset a shutdown. For a breakdown, call the 24/7 emergency line on +34 971 251 374. The published emergency response target is within two hours.
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Kohler (Rehlko) and other product names are trademarks of their respective owners. They are used here only to identify the equipment we work on.