Exact Bobcat Hydraulic Oil Temperature Codes, Warning to Shutdown

What Bobcat M0710, M0711 and M0715 mean right now

M0710 means your Bobcat’s hydraulic oil temperature is too high. M0711 means it is extremely high, and M0715 means it has reached the shutdown level. M0721 and M0722 mean the temperature signal is out of range, which points at the sensor circuit rather than hot oil.

The five codes in the M07 family

Source: Bobcat Diagnostic Service Codes, Revised 10-20. Applies to M-Series loaders S450–S850 and T450–T870. M-Series excavators E26–E85 use the same codes. Verified September 24, 2026.

Pick your next step

• Code on screen now: use the table above, then read the ladder below.
• Only M0721 or M0722: go to the sensor section.
• Rented machine: call the rental company before diagnosing anything.
• Need other stop-work codes: see which Bobcat codes stop work, by machine.

ℹ️ Safety Note: Hydraulic fluid, tubes and fittings get hot enough to burn during operation, and the system can hold pressure after shutdown. Fluid escaping under pressure can penetrate skin and needs immediate medical attention. This article is for general understanding only. Follow your machine’s Operation & Maintenance Manual and have a qualified Bobcat technician do any hydraulic work.

There is no M0712, M0713 or M0714

Bobcat’s published code list jumps from M0711 straight to M0715. A title or list that reads “M0710–M0715” describes three real codes, not six.

Too high, extremely high, shutdown

The three codes form a warning ladder: M0710 is the first warning, M0711 the second, and M0715 the point where the machine protects itself. Bobcat uses the same pattern for charge pressure: low, extremely low, shutdown.

Bobcat’s manual for the earlier S150 loader describes its warning level as three beeps, with damage possible if operation continues. At shutdown, the alarm sounds continuously and the engine stops within 10 seconds, and the manual allows a restart only to move or relocate the loader. M-Series machines split “extremely high” and “shutdown” into separate codes, so confirm the exact behavior in your model’s manual.

Which Bobcats use these codes

Source: Bobcat Diagnostic Service Codes, Revised 10-20 (created 2020). Bobcat points to its online Machine Diagnostics page for newer codes. Verified September 24, 2026.

07-10 on older machines

Older loaders show two-part codes on the hourmeter display. Bobcat’s S150 manual uses 08-10 for engine coolant temperature high as its example. Confirm any 07-xx definition in your machine’s own service-code list, and see how Bobcat’s code formats map to each other.

M0721 or M0722 with it? Maybe a sensor, not heat

An out-of-range code means the controller doesn’t trust the temperature signal itself.

What “out of range” means

Bobcat’s S150 manual classes “out of range” as an Error condition, separate from its Warning and Shutdown levels. On the same panel, the matching coolant and oil-pressure errors are labeled as sender faults. The code tells you the reading can’t be trusted. It does not tell you the oil is hot.

Reading the codes together

M0710 or M0711 on its own is the controller reporting heat, so treat it as real until a technician says otherwise. If M0721 or M0722 is logged alongside it, the sensor or wiring harness becomes a suspect, and confirming that takes a dealer diagnostic tool.

🔍 Why It Fails: Unplugging or bypassing the temperature sensor doesn’t cool anything. It removes the protection that stops the machine before heat damages the hydraulic system.

What makes Bobcat hydraulic oil run hot

Bobcat’s own maintenance schedule points at three places: cooling, oil level, and filter condition.

Cooling: fins, fan, and fan codes

The S150 service schedule calls for cleaning debris from the oil cooler, radiator and grill every 8–10 hours. On M-Series loaders, if the hydraulic fan codes M3505, M3506, M3507 or M3532 (short, open circuit, overcurrent) show up alongside M0710, check the fan first. One documented owner report, on a 2018 S550, traced 0710/0711 codes to a slipping drive belt that couldn’t spin the cooling fan fast enough. That is a single case, not a pattern.

Oil level and filter condition

Hydraulic fluid level is a daily check in Bobcat’s manual. Look through the code history for M0217, which flags a plugged hydraulic/hydrostatic filter on M-Series loaders.

Heavy continuous flow

Note whether high-flow or continuous auxiliary flow was running when the code set, because the technician will ask.

🧮 Run the Numbers: You’ll need the attachment’s rated GPM and pressure, and whether your loader is standard or high-flow.

⚠️ Hazard: Belts, fans and the cooler sit next to moving parts and hot surfaces. Bobcat’s manual says never to service the loader with the engine running unless the manual specifically says to. Belt and fan-drive work goes to a qualified Bobcat technician.

Checks you can make once it’s cool, and where to stop

Bobcat’s manual separates owner-level checks from work reserved for qualified service personnel.

Visual checks with the engine off

First, park as the manual directs: lift arms down, attachment flat, engine off. Then let it cool before checking fluids.

• Check the hydraulic fluid level using your O&M’s procedure.
• Look for debris packed into the cooler, radiator or rear grill.
• Look for leaks using cardboard or wood, never your bare hand.

Stop and call a tech if…

• You find a leak, a damaged hose, or a wet fitting.
• A fan or reverse-fan code is logged.
• The code returns after cleaning and with the fluid level correct.

✅ Do This: Ask a certified heavy equipment technician at your Bobcat dealer to check cooling-fan operation, drive belt condition, and the temperature sensor reading against your code history.

How to pull every active code off the panel

One code rarely tells the whole story, so log everything before anyone clears anything.

Standard and deluxe panels

On the S150-generation standard panel, press and hold the lights button for two seconds, and multiple codes will scroll on the hourmeter display. The deluxe panel shows the code in the same display and describes the condition on screen.

Touchscreen panels and Machine IQ

On touchscreen machines, use the service-codes screen your O&M describes. For detailed descriptions and troubleshooting, Bobcat points owners to Machine IQ Health and Security through the Bobcat Owner Portal.

When it’s a dealer job, and what to tell them

Some code combinations are dealer work from the start.

Dealer triggers

• M0715, at any time.
• M0711 that comes back after cooling and basic checks.
• M0721 or M0722 that stays logged.
• Any hydraulic fan or reverse-fan code logged with M0710.

What to have ready

• The serial number, which Bobcat says to use for every service request. You can check its codes with our Bobcat fault code lookup by serial number.
• Every code on screen, in order, with hour-meter readings.
• What was running: attachment, flow mode, load, and air temperature.

FAQ

Getting a hot Bobcat back to work

You now know which rung of the ladder your code sits on, and whether the problem is heat or the signal. What’s causing the heat comes next. Work through the cool-down checks above, then take the full code list and serial number to your dealer, using the stop-work reference and serial lookup linked above.

If an attachment was running, run it through the Flow Attachment Matcher with its GPM and your loader’s flow rating. The single most important thing to ask the technician: is the cooling fan reaching full speed, and does the temperature sensor read accurately?

Every code definition here traces to Bobcat’s own published list, and this reflects documented sources, not first-hand operation. Last verified September 24, 2026.