Bobcat H2732 (27-32) Fault Code: Front Rod Solenoid Over Current
Also shown on the panel as 27-32 · Also called Front Rod Output Overcurrent
Front Rod Solenoid Over Current · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
H2732 (panel form 27-32) means the auxiliary controller detected too much current through the front rod solenoid return wire (2330, or 2110 on deluxe MX controllers) and shut the solenoid off to protect its output driver. It's an electrical fault, not a hydraulic failure by itself, and it takes the front rod function offline until the wiring, solenoid, or controller issue is found.
Medium severity. The auxiliary controller disables the front rod solenoid as soon as it sets this code, so the affected function stops working, but there's no indication of a broader safety or drivetrain risk. Treat it as a stop-and-diagnose issue rather than an emergency shutdown, since continued operation with the solenoid disabled just limits functionality.
What does Bobcat error code H2732 mean?
H2732 is set by the auxiliary controller (or deluxe MX controller on machines equipped with that system) when it senses excessive current on the front rod solenoid's return wire, either wire 2330 or wire 2110 depending on the controller type. This current is higher than the controller's output driver can safely handle, so the controller disables the front rod solenoid to prevent damage to itself.
In practical terms, this is the controller protecting its own internal electronics from an overcurrent condition, most often caused by a short somewhere in the circuit. Once the code sets, the front rod function tied to that solenoid will not operate until the fault is cleared and repaired.
This code applies across a wide range of Bobcat skid-steers, compact track loaders, and excavators, including the E35, E45, S-series loaders (S510 through S650, S750/S770), and T-series track loaders (T550 through T870).
Common causes of H2732
- Return wire 2330 (or 2110 on deluxe MX controllers) shorted to supply voltage, or shorted to signal wire 4330 (or 4110 on deluxe MX controllers).
- A failed front rod solenoid.
- A fault in the auxiliary controller or deluxe MX controller itself.
- Moisture, corrosion, or pushed-back pins in the auxiliary/deluxe MX controller connectors, the front rod solenoid connector, or the mainframe harness (or deluxe MX power/control harness).
- Intermittent causes that may not be present at the time of testing, including loose connections, corrosion, pushed-back pins, the controller, the wire harness, or a combination of these.
How to troubleshoot Bobcat H2732: first checks
- With the key switch off, inspect the front rod solenoid connector and the auxiliary controller (or deluxe MX controller) connectors for moisture, corrosion, or pushed-back pins.
- Check return wire 2330 (or 2110) for signs of chafing or shorting against supply voltage wiring or against signal wire 4330 (or 4110).
- Inspect the mainframe harness (or deluxe MX power and control harness) along its full run for pinched, rubbed, or damaged sections near the front rod solenoid circuit.
- Test the front rod solenoid itself for an internal short or damage that could be pulling excessive current.
- If the code is not currently active, treat it as intermittent and focus on loose connections, corrosion, and pushed-back pins as the most likely culprits, since the root cause may not show up during a static test.
How the code clears
Conditions for the code to set require the key switch (run/enter) to be on. Once the repair is complete, the only clearing step listed is to cycle power to the machine. No separate reset procedure is listed for this code.
Affected models and serial ranges
H2732 appears in our records across 18 Bobcat models. Match your machine by model and serial number.
| Model | Serial ranges |
|---|---|
| E35 | SN A93K110001-99999, SN AC2P11001-99999 |
| E45 | SN AHHC11001-99999 |
| S510 | SN A3NJ11001-99999, SN A3NK11001-99999, SN ATZC11001-99999 |
| S530 | SN A7TV11001-99999, SN ATZD11001-99999 |
| S550 | SN A3NK11001-A3NL99999, SN A3NM11001-99999 |
| S570 | SN A7U711001-799999, SN A7U811001-899999 |
| S590 | SN ANMN11001-99999, SN ANMP11001-99999 |
| S630 | SN A3NT12370-99999, SN A3NU11001-11111, SN A3NU11112-99999 |
| S650 | SN A3NV11001-13098, SN A3NV13099-99999, SN A3NW11001-11248, SN A3NW11249-99999 |
| S750 | SN A3P211001-299999 |
| S770 | SN A39511001-99999, SN A3P411001-99999 |
| T550 | SN A7UJ11001-AJZV12276 |
| T590 | SN ALJU11001-999999, SN B37811001-999999, SN B3Z711001-999999 |
| T630 | SN A7PU11001-11663, SN A7PU11664-99999 |
| T650 | SN A3P012214-099999, SN A3P111242-199999 |
| T750 | SN ANKA11001-A99999 |
| T770 | SN A3P811001-899999, SN A3P911001-999999 |
| T870 | SN A3PG11001-99999, SN A3PH11001-99999 |
Frequently asked questions
What does Bobcat code H2732 mean?
It means the auxiliary controller (or deluxe MX controller) detected an overcurrent condition on the front rod solenoid's return wire and disabled the solenoid to protect its output driver from damage.
Will my machine still run with code H2732 active?
The machine itself should still operate, but the front rod solenoid function will be disabled until the fault is diagnosed and repaired.
What wire numbers are involved in H2732?
On the auxiliary controller system, the return wire is 2330 and the signal wire is 4330. On machines with the deluxe MX controller, the equivalent wires are 2110 and 4110.
How do I clear H2732 after fixing the problem?
Cycle power to the machine. That is the only clearing step listed for this code.
What usually causes H2732 to set?
The most common causes are a short in the return wire to supply voltage or to the signal wire, a failed front rod solenoid, a controller fault, or moisture and corrosion in the connectors and harness.
Which Bobcat machines can show code H2732?
It applies to the E35 and E45 excavators, S510, S530, S550, S570, S590, S630, and S650 skid-steers, S750 and S770 loaders, and T550, T590, T630, T650, T750, T770, and T870 compact track loaders.
Why does H2732 keep coming back even after I check everything?
If the code is intermittent, the root cause, often a loose connection, corrosion, or a pushed-back pin, may not be present during testing. These intermittent issues can be hard to catch without the fault active at the time of inspection.