Specifications
| Fuel | Natural Gas, Propane |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 12 kW |
| Prime power | 10 kW |
| Oil capacity | 4.0 L |
| Voltage options | 12 V |
| Phase | Single Phase |
| Rated current | 65 A |
| Power factor | 0.8 |
| Battery voltage | 12 V |
| Coolant capacity | 11.5 L |
Maintenance & consumables
for the Onan Modified Ford 4-cyl.| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Check Air Cleaner Xx X xX xX Check or Replace Spark Plugs X | — | 200 hr | find | |
| Fuel filter | — | find | |||
| Oil filter | Change Crankcase Oil and Filter X5 | — | 200 hr | find | |
| Belt | Inspect the belt at the recommended intervals. Replace a worn or damaged belt before belt failure occurs. | — | 500 hr | find | |
| Coolant | Check the coolant level during shutdown periods at the interval specified in Table 5-1. Use a 50/50 coolant solution (50% pure water and 50% antifreeze). | 11.0 L | — | 90 hr | |
| Coolant filter | — | find | |||
| Oil | Change Crankcase Oil and Filter X5 | — | 200 hr |
Common questions
What is the power rating of the Cummins/Onan GEAB?
The Cummins/Onan GEAB is rated 12 kW standby.
What engine does the Cummins/Onan GEAB use?
The Cummins/Onan GEAB is powered by the Onan Modified Ford 4-cyl. engine.
What fuel does the Cummins/Onan GEAB use?
The Cummins/Onan GEAB runs on Natural Gas, Propane.
What is the oil capacity of the Cummins/Onan GEAB?
The Onan Modified Ford 4-cyl. engine in the Cummins/Onan GEAB has an oil capacity of 4.5 liters.
Troubleshooting
22Fault codes
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| Hl ENG TEMP | Hl ENG TEMP lamp lights. Engine shuts down. | Engine has overheated (engine temperature has risen above 215°F/102°C) or coolant level is low. | A. Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check for a slipping fan belt and tighten if loose. d. Reset control and restart after locating and correcting problem. Contact an authorized service center if none of the above. |
| LO OIL PRES | Engine runs, shuts down, and LO OIL PRES lamp lights. | B. Check for dirty fuel filter (if installed) and replace if necessary. c. Check for dirty or plugged air filter and replace if necessary (see Maintenance section). d. Reset the control and restart after correcting the problem. Contact an authorized service center for service if none of the above. | |
| LO FUEL (Pressure) | LO FUEL (Pressure) lamp lights. Shutdown will occur if unit runs out of fuel. | Install the fuel hose and regulator supplied with the unit and connect to a propane fu |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| PRE HET/LOP lamp lights. Engine continues to operate. | Indicates engine has begun to overheat and engine temperature has risen to approximately 205°F (97°C) or coolant level is low. | A. Reduce load if possible by turning off non-critical loads. b. Check air inlets and outlets and remove any obstructions to airflow. |
| HI ENG TEMP lamp lights. Engine shuts down. | Indicates engine has overheated (engine temperature has risen above 215°F/102°C) or coolant level is low. | A. Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check for a slipping fan belt and tighten if loose. d. Reset control and restart after locating and correcting problem. Contact an authorized service center if none of the above. |
| LO OIL PRES lamp lights. Engine shuts down. | Indicates engine oil pressure has dropped to 30 psi (207 kPa). | NOTE: See also step 5. |
| OVERCRANK lamp lights and engine stops cranking. | Indicates possible fuel system problem. | A. Check for empty fuel tank (LPG Vapor), fuel leaks, or plugged fuel lines and correct as required. b. Check for dirty fuel filter and replace if necessary (see Maintenance section). c. Check for dirty or plugged air filter and replace if necessary (see Maintenance section). d. Reset the control and restart after correcting the problem. Contact an authorized service center for service if none of the above. |
| Engine runs and then shuts down, OVERSPEED lamp lights. | Contact an authorized service center for service. | |
| SWITCH OFF lamp flashes. | Indicates Run/Stop/Remote switch is in the Stop position which will prevent automatic starting if an automatic transfer switch is used. Move the Run/Stop/Remote switch to the Remote position for automatic starting. | |
| Fault lamp lights but no fault exists. Engine gauges show oil pressure, engine temperature, and frequency (speed) are within normal limits. | The monitor board or a sensor may be at fault. Contact an authorized service center for service. | |
| Engine will not crank. | Indicates possible fault with control or starting system. Check for the following conditions: a. Fault lamp on. Correct fault and reset control. b. Poor battery cable connections. Clean the battery cable terminals and tighten all connections. c. Discharged or defective battery. Recharge or replace the battery. d. Emergency stop button pushed in. To reset, pull switch out and move Run/Stop/Remote switch to Stop position. Then push test switch to Reset/Lamp position. e. Contact an authorized service center if none of the above. | |
| No AC output voltage. | Field breaker is tripped. Reset breaker. Contact an authorized service center if voltage buildup causes breaker to trip. | |
| Green RUN lamp does not light following engine startup. | Indicates possible Start/Disconnect relay failure. Test light with LAMP TEST position on switch. Contact an authorized service center for assistance. | |
| The O/U VOLTAGE lamp lights. Engine shuts down. | Contact an authorized service center for service. | |
| Green RUN lamp lights following engine startup. | Indicates all engine systems are normal. No corrective action required. | |
| The OVERLOAD lamp lights. Engine shuts down. | If load exceeds generator current rating, the breaker will trip preventing the generator from being overloaded. | Locate the source of overload and correct as necessary. Manually reset breaker to reconnect the load to the generator. |
| Fault lamp lights but no fault exists. | The monitor board or a sensor may be at fault. Contact an authorized service center for service. | |
| Low Oil Pressure | Shuts down the engine immediately if oil pressure drops below 14 psi (97 KPA) and lights a fault lamp. The fault is time-delayed about 10 seconds following starter disconnect and inhibited during cranking. | |
| Pre-Low Oil Pressure | A pre-low oil pressure sensor and lamp provides an alarm that oil pressure is marginally low, 20 psi (137 kPA) or less. The cause should be found and corrected as soon as possible. | |
| High Engine Temperature | Shuts down the engine immediately if coolant temperature rises above 222° F (106° C) and lights a fault lamp. The fault is time-delayed about 10 seconds following starter disconnect and inhibited during cranking. | |
| Pre-High Engine Temperature | A pre-high engine temperature sensor and lamp provides an alarm that engine temperature is marginally high, 215° F (102° C). The cause should be found and corrected as soon as possible. | |
| Low Coolant Level Shutdown | An electronic switch that provides engine shutdown and turns on the high engine temperature fault lamp if coolant level fails too low. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
3| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 928-0129 | Oil Filter | 2 | Oil filter | buy |
| FS-1176s | Crankcase Oil and Filter | Gas mixer | buy | |
| LS1169s | FILTER GASKET | 1 | Oil filter | buy |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | |||
| Prime | 25% | ||
| Prime | 50% | ||
| Prime | 75% | ||
| Prime | 100% | ||
| Standby |
Available documents
Parts manual — 0932-0112 Onan Post-Sale Literature Index (07-1998) (Cummins/Onan)Parts manual — 928-0230 Onan GEAA (spec A) GEAB (spec A-B) Genset Parts manual (08-1996) (Cummins/Onan)Service manual — 928-0127 Onan 10 GEAA 20 GEAB Operator's Manual (4-1994) (Cummins/Onan)Service manual — 928-0605 Onan GEAA GEAB Installation Manual (4-1994) (Cummins/Onan)