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My Onan 3600 LP is flashing error code 27. What are my
My Onan 3600 LP is flashing error code 27. What are my options? … read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
My Onan diesel 5MDKBH generator was running fine, I shorted
My Onan diesel 5MDKBH generator was running fine, I shorted out the output wires, the generator stopped running. On trying to restart, I get code 27. The output at the ac sense measures 2 ohms. The ge… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
I have an Onan generator on my RV. It starts but will not
I have an Onan generator on my RV. It starts but will not keep running. The fault code (45) says controller unable to sense quadrature frequency. How do I get it fixed. … read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
My Onan Micro Quite 4000 generator is turning itself off,
My Onan Micro Quite 4000 generator is turning itself off, unable to continue to run, and the computer monitor system is showing a code that says it #14"OverFrequency Fault" Engine governor unable to m… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
I'm having some technical issues with a 4kyfa spec p.fault
Good afternoon, I'm having some technical issues with a 4kyfa spec p.fault code27 showed on the diagnostic. Have found this much so far: stator tested good Swapped out control unit with older but same… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
I have an RV with a Onan generator Model GN 480 (5500
I have an RV with a Onan generator Model GN 480 (5500 watts). It is dead. If you hit the switch on the driver's console or even on the start switch on the generator itself there is no response. Not ev… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
onan 4000 flashing code 33gen will not stay started.
onan 4000 flashing code 3 gen will not stay started. More information: Fault code 45: Controller unable to sense quadrature frequency.… read more
Expert
Expert
I have a onan microquiet 4000 4kyfa26100k spec k with code
I have a onan microquiet 4000 4kyfa26100k spec k with code 27, before code set and generator stopped working, it was producing 140-150 volts 55hz, replaced controller no change, have manual but have n… read more
Expert
Expert
I have an Onan 5.0 MDKBH Generator. Anyone had hands on experience
I have an Onan 5.0 MDKBH Generator. Anyone had hands on experience troubleshooting the electrical side?… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
i have an onan rs 12000 that runs for 2 seconds and shuts off.
i have an onan rs 12000 that runs for 2 seconds and shuts off. It has a fault code 27. whats wrong… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
My Onan 5MDKBH-5238A 120V generator starts and the shuts down
My Onan 5MDKBH-5238A 120V generator starts and the shuts down immediately. The fault code is 27 - Loss of AC voltage sense. The two sense wires are connected firmly at the breaker and modular plug int… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
I got an old 7.5kw Onan Generator, and the 4 wires connected
I got an old 7.5kw Onan Generator, and the 4 wires connected to the voltage adjustment panel got disconnected, I need to know how (in what order )to re connect them.The # XXXXX F2, F1, 2, 1,The wires … read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
have12.5 kw onan generator starts and run for two minutes then
have12.5 kw onan generator starts and run for two minutes then quits. gives me a 27 code where to look first… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
My onan generator for my 1998 Four Winds Majestic RV is not
My onan generator for my 1998 Four Winds Majestic RV is not working. The generator starts but won't power the microwave, AC, heater, fridge. It was working the last time we took it out. All of a sudde… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
I have an Onan Rv generator that will not turn on. i took it
I have an Onan Rv generator that will not turn on. i took it the a shop and a reading indicates code 45-speed fault as cause. What can I do to repair this?… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
Onan microlite 4000 - Model# 4KY FA26100J S/N# F990 934964
Onan microlite 4000 - Model# XXXXX FA26100J S/N# XXXXX 934964: generator just quit while running normal. engine will not re-start or crank over. Oil level is normal. Spark plug+air filter chaged 42 ho… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
We r in omaha Nebraska and our generator stopped running.
We r in omaha Nebraska and our generator stopped running. It starts for a couple of seconds but then dies. The indicator light on the start button (on the generator) blinks three times indicating "ser… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
I have an onan 4000 microquiet that is showing a code 27. I
I have an onan 4000 microquiet that is showing a code 27. I took it to a cummins dealer and they wanted $800 to replace carb, fuel filter, air filter, and adjust valves. HOW does a code 27 suggest thi… read more
Hank F.
Hank F.
Technician
High School or GED
16,126 satisfied customers
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