BrentB
Acquired a new customer today. Last company replaced PCB to get it running. Genset didn't run when we made first visit. Jr tech said crank but no start. Schectey past work orders suggested replaced PCB and ordering exhaust parts?

Found PCB not closing wire 14A to ground on run relay. Replaced PCB, gen fired up and ran great!

A/C output? 64 vac! Dreaded test 4 found wire 6 to AVR not making contact to AVR! Signs of high heat on J plug connector. Replaced AVR, and set voltage @ 245 to match utility. All seems good!

Set exercise.... Huge backfire! Now cranks, no start! Again no power on wire 14 during crank! Jumped wire 14 to 15 on tb; bypassing R2 ( run relay) unit started and ran great!

Had called tech before this step, and had no good advice. Tested run relay on the hunch of junior tech, and found relay chatter! Replaced R2 relay, and all works great now!

Unit had new mag pick up and new control board from last dealer!

Never give up until you find the ROOT cause of the failure! 6 hrs total on the unit, $1,300 total repairs, happy customer!

Moral to this story? Never give up; even when you want to put a grenade in it!

#2 ? Dedicate yourself to be better than " the last guy that was here"
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John R
Good job, persistence pays off.
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redman
Good Job Brent!
Only reason posting this to see if someone else has ever seen this.

Had one myself this week, QTO4845 ANAX / serial # 9152518
found in "over crank" alarm, re-set alarm, tried to start, went thru 1 crank cycle, never hit a lick. Took air filter off "PITA" tried again, put glove over carb. hole, could hear the Bosh kick in, never hit a lick.
So now lets look at gas, took off the drip leg cap, no trash, put on gauge, turned back on 10" WC, ok, but noticed when I cut gas back on did not hear external regulator do its little "whistle" noise. Took test port plug off internal regulator, it then blew the excess gas out, then heard the external fuel regulator do its whistle, ok, now were ready. Hooked up second gauge to internal regulator test post, cut gas back on 10" on both, tried to start again, bosh kicks in, engine cranks over, no start 1st crank cycle, so now choke carb. with glove, 2nd crank cycle nothing. Okie Dokie, so check voltage at solenoid during cranking, have 10-11 vdc, good, still not smelling any gas at carb, so its time to take solenoid apart. Took top off, took spring out, then found the problem, the stem was stuck solid to the fuel opening, could not pull it off easily, but when I did, there was a "whistle" thru the whole fuel system.

Put stem back in, spring back on, top back on, connected wires, went around, hit start button, started right up, ran perfect. Did load test on house, serviced and everything good.
Never seen a "stem" stick like that, is this normal?
Thanks, Mike

Footnote: stayed on hold 47 minutes 11 seconds with Generac Tec. support, only to hear the music / advertisement stop, could hear someone pick up phone, then hang right back up, blood boiling...called back after 35 minutes no one ever picked up, I finally hung up, another job to go to....
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nrp3
It's thanksgiving day a couple years back and have a 20kw air cooled acting funny, overspeed, etc. Two of us going through all the normal items. Finally stuck my pinky finger down the opening where the butterflies are and sure enough, one was missing. Not on Brett's level of complexity, but persistence is essential. It takes time to learn this stuff and you see new things all the time.
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UPS
redman;37480 wrote:
Good Job Brent!
Only reason posting this to see if someone else has ever seen this.

Had one myself this week, QTO4845 ANAX / serial # 9152518
found in "over crank" alarm, re-set alarm, tried to start, went thru 1 crank cycle, never hit a lick. Took air filter off "PITA" tried again, put glove over carb. hole, could hear the Bosh kick in, never hit a lick.
So now lets look at gas, took off the drip leg cap, no trash, put on gauge, turned back on 10" WC, ok, but noticed when I cut gas back on did not hear external regulator do its little "whistle" noise. Took test port plug off internal regulator, it then blew the excess gas out, then heard the external fuel regulator do its whistle, ok, now were ready. Hooked up second gauge to internal regulator test post, cut gas back on 10" on both, tried to start again, bosh kicks in, engine cranks over, no start 1st crank cycle, so now choke carb. with glove, 2nd crank cycle nothing. Okie Dokie, so check voltage at solenoid during cranking, have 10-11 vdc, good, still not smelling any gas at carb, so its time to take solenoid apart. Took top off, took spring out, then found the problem, the stem was stuck solid to the fuel opening, could not pull it off easily, but when I did, there was a "whistle" thru the whole fuel system.

Put stem back in, spring back on, top back on, connected wires, went around, hit start button, started right up, ran perfect. Did load test on house, serviced and everything good.
Never seen a "stem" stick like that, is this normal?


It seems odd, if the unit was regularly exercising, that suddenly it would freeze like that.
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Peddler
Had a new customer call us yesterday before this storm and tell me that he had another dealer working on his 4390-3 since Thanksgiving and hasn't been able to make it run yet, but he had ordered more parts and was sure he would figure it out. Homeowner wasn't so sure and called us. I went out and immediately saw that it had a nat gas regulator with a piece of 3/8" copper tubing bent like a Sheppard's hook for the vent. Tried the unit and it would fire on a whiff of starting fluid, took the vent off the regulator found it clogged solid with a Mud Dauber nest. Tried the unit it fired right up and ran great. Customer couldn't believe it. I was there 20 minutes and that included putting a new battery in for him because his was 4 years old. I don't know how much he had been billed by the other guy but I don't think he was too happy. I charged him for a battery and a $90.00 service call and was on to the next person who put off checking there generator until the storm. Crazy here the last three days. Peddler
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redman
I checked the history, had not ran for months, but homeowner never noticed.
Went out to do 1st oil change before bad weather hit, that's how I found it in alarm, over crank.
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Canada_Guy
It's great reading stories of craftsmen that are truly skilled at their job. I hope if I ever have to call in some outside help that I would be fortunate to get someone with the skill you guys have.
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redman
Thanks Canada_Guy, for the kind words.
I try to be fair and honest to all my customers, and treat them like I want to be treated.
Just wish more would listen when I recommend to them, work that needs to be done, don't wait till it breaks, to fix it, because on a weekend like we are having, its not going to get fixed fast.
Mike
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ohmslaw
nrp3;37481 wrote:
It's thanksgiving day a couple years back and have a 20kw air cooled acting funny, overspeed, etc. Two of us going through all the normal items. Finally stuck my pinky finger down the opening where the butterflies are and sure enough, one was missing. Not on Brett's level of complexity, but persistence is essential. It takes time to learn this stuff and you see new things all the time.


That is a standard test for our service team. You need to be careful not to get your pinky stuck. They tend to break from back firing, so coils or valve adjustments are always suspect when we find a broken throttle plate.
Tim
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nrp3
That was the first time they had ever needed it. Big disappointment for them. Factory sent a new motor a week later and it was back in business.
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ohmslaw
nrp3;37506 wrote:
That was the first time they had ever needed it. Big disappointment for them. Factory sent a new motor a week later and it was back in business.

New motor for an air box. I wish I could be that convincing. The unit probably had a back fire issue any way.
Tim
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nrp3
Difficult to say. They sent a new motor and knew what happened. I was concerned it pulled the plate into the head. Not sure whether that can happen or not. Still have the motor. Covered the whole thing. It wasn't mine and had real low hours, nexus, nothing but exercise time. Mine, unless, its a coil thing, shouldn't have that (backfire). Check and or adjust the valves every year.
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redman
Shocked, Surprised, and Felling Good !
Sorry, guys, just had to share this one.

Open mail today to find a very nice letter and check from a homeowner I have never meet, but have talked to on phone many times.

This story goes back a month, when this guy called me to ask questions about the service on his 20 kw air cooled that another company put in, but he was not happy with their service and was looking for someone new to do his service once his 3 year contract expired, and had gotten my name from a customer of mine.

He called me about 1:30 am during the peak of the ice storm last week, they had lost power and his generator did not start, it tried, but went into over crank.
He is ex-military retired and had some basic mechanical skills, so I had him to try it again, so I could hear motor turn over during cranking and could hear engine over the phone. I had him to take the air breather, filter off so we could see if the stepper arm was moving, it was, had him put a glove over the air box holes and try to choke it, it putted a couple of times, but would not start again. Had him describe his gas set up, 12 " flex hose directly into gas regulator, knew right then we had a problem, but it should start.
Went thru several things till we figured out the vent brass stud was covered in ice, had him take it out, and of course, ants had built a nest inside there and stopped the vent tube up. Had him clean it out, then thaw out the brass stud, put back in and choked again, and started right up.
With a house full of family, friends and neighbors, all of which had no power, he was now the hero, and went into his house happy.

He sent me a check for $100.00 and very heart felt letter about how much he appreciated me taking the time to walk him thru this and help him fix his generator, even though we have never meet and he wasn't a customer of mine. He felt my time on the phone was worth something.

He is now a customer, and I hope to meet him next week when I go out to service his generator.
Don't think I will cash this check, just keep it and the letter to remind me when I got up and answered the phone at 1:30 am, why I do, what I do.
Thanks, Mike
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Namvet34
redman;37597 wrote:
Shocked, Surprised, and Felling Good !
Sorry, guys, just had to share this one.

Open mail today to find a very nice letter and check from a homeowner I have never meet, but have talked to on phone many times.

This story goes back a month, when this guy called me to ask questions about the service on his 20 kw air cooled that another company put in, but he was not happy with their service and was looking for someone new to do his service once his 3 year contract expired, and had gotten my name from a customer of mine.

He called me about 1:30 am during the peak of the ice storm last week, they had lost power and his generator did not start, it tried, but went into over crank.
He is ex-military retired and had some basic mechanical skills, so I had him to try it again, so I could hear motor turn over during cranking and could hear engine over the phone. I had him to take the air breather, filter off so we could see if the stepper arm was moving, it was, had him put a glove over the air box holes and try to choke it, it putted a couple of times, but would not start again. Had him describe his gas set up, 12 " flex hose directly into gas regulator, knew right then we had a problem, but it should start.
Went thru several things till we figured out the vent brass stud was covered in ice, had him take it out, and of course, ants had built a nest inside there and stopped the vent tube up. Had him clean it out, then thaw out the brass stud, put back in and choked again, and started right up.
With a house full of family, friends and neighbors, all of which had no power, he was now the hero, and went into his house happy.

He sent me a check for $100.00 and very heart felt letter about how much he appreciated me taking the time to walk him thru this and help him fix his generator, even though we have never meet and he wasn't a customer of mine. He felt my time on the phone was worth something.

He is now a customer, and I hope to meet him next week when I go out to service his generator.
Don't think I will cash this check, just keep it and the letter to remind me when I got up and answered the phone at 1:30 am, why I do, what I do.
Thanks, Mike


.

Good Story, Mike!! Thanks for sharing it.

That's almost enough to restore one's faith in human nature ---almost!

Regards,

Gene

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Hodgy
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Good on you redman and good on your customer for recognizing when someone stands up to help.

There are others out there doing the same and sometimes they get the recognition and sometimes they do not.

We are all on this orb together and at times we need to step up and take our place in protecting each other with whatever we can bring to the table.

It may not be the expertise shown by many on this forum but may be something else.

Thank You !


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John R
redman;37597 wrote:
Shocked, Surprised, and Felling Good !
Sorry, guys, just had to share this one.

Open mail today to find a very nice letter and check from a homeowner I have never meet, but have talked to on phone many times.

This story goes back a month, when this guy called me to ask questions about the service on his 20 kw air cooled that another company put in, but he was not happy with their service and was looking for someone new to do his service once his 3 year contract expired, and had gotten my name from a customer of mine.

He called me about 1:30 am during the peak of the ice storm last week, they had lost power and his generator did not start, it tried, but went into over crank.
He is ex-military retired and had some basic mechanical skills, so I had him to try it again, so I could hear motor turn over during cranking and could hear engine over the phone. I had him to take the air breather, filter off so we could see if the stepper arm was moving, it was, had him put a glove over the air box holes and try to choke it, it putted a couple of times, but would not start again. Had him describe his gas set up, 12 " flex hose directly into gas regulator, knew right then we had a problem, but it should start.
Went thru several things till we figured out the vent brass stud was covered in ice, had him take it out, and of course, ants had built a nest inside there and stopped the vent tube up. Had him clean it out, then thaw out the brass stud, put back in and choked again, and started right up.
With a house full of family, friends and neighbors, all of which had no power, he was now the hero, and went into his house happy.

He sent me a check for $100.00 and very heart felt letter about how much he appreciated me taking the time to walk him thru this and help him fix his generator, even though we have never meet and he wasn't a customer of mine. He felt my time on the phone was worth something.

He is now a customer, and I hope to meet him next week when I go out to service his generator.
Don't think I will cash this check, just keep it and the letter to remind me when I got up and answered the phone at 1:30 am, why I do, what I do.
Thanks, Mike



Put me down as another Atta Boy, what a great thing you did,
The world would be a better place, if there were more people like you.
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