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Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: Farrarkc on June 29, 2020, 02:23:32 pm

Title: Help! High Temp light on Generator
Post by: Farrarkc on June 29, 2020, 02:23:32 pm
I am an hour from leaving and went to cool the coach down to make the wife happy.  Rookie mistake! I had the coach plugged in with 110 and I forgot to unplug before starting the generator. Not sure if that could be a cause of my issue.

Generator fires right up and was running great then I realized I was plugged in so I unplugged and got a small spark. A few minutes later the generator shuts off with high temp.  After cooling off and checking for breakers I started the generator back up and same thing happened again.  I can not tell if the fan under the drivers seat is on or not. Coolant levels seem good.

Hoping to leave soon so any help is appreciated!!
Title: Re: Help! High Temp light on Generator
Post by: turbojack on June 29, 2020, 02:33:20 pm
Does your coach have generator radiator in front driver compartment? If so you should be able to see if fan is running. May be as simple as $7.00 run capacitor
Title: Re: Help! High Temp light on Generator
Post by: Farrarkc on June 29, 2020, 02:35:59 pm
Does your coach have generator radiator in front driver compartment? If so you should be able to see if fan is running. May be as simple as $7.00 run capacitor
Does your coach have generator radiator in front driver compartment? If so you should be able to see if fan is running. May be as simple as $7.00 run capacitor
[/quote

It does have the fan under the drivers seat.  I can not tell if it is running. I was thinking that I might have blown a breaker but a capacitor makes sense too.  Can you tell me where the capacitor is?
Title: Re: Help! High Temp light on Generator
Post by: Pamela & Mike on June 29, 2020, 02:39:41 pm
The capacitor is on the back side of the fan. Fan assembly has to come out to replace capacitor.  You need to check to see if you have thrown a water pump belt before you pull  the fan.  Verify that the fan is getting power because you may have a bad breaker.

are you checking the water in the over flow tank or where the radiator cap is?

Mike
Title: Re: Help! High Temp light on Generator
Post by: Farrarkc on June 29, 2020, 02:47:19 pm
The capacitor is on the back side of the fan. Fan assembly has to come out to replace capacitor.  You need to check to see if you have thrown a water pump belt before you pull  the fan.  Verify that the fan is getting power because you may have a bad breaker.

are you checking the water in the over flow tank or where the radiator cap is?

Mike

Thank you Mike. Can you give me some more details please. The belt is intact on the generator. I will open up the junction box above the fan and check for power. As far as a bad breaker, what breaker are you talking about? I had to reset the water pump and water fill breakers after unplugging the shore 110. Could there be another breaker I am unaware of that is simply tripped? (for the fan)
Title: Re: Help! High Temp light on Generator
Post by: Pamela & Mike on June 29, 2020, 02:55:21 pm
Depending on which generator set up you have the fan is fed off the main generator breaker.  Some fans have a separate breaker that is mounted on the front of the control panel that feeds the fan.  On these units there is a jumper wire from the main breaker to the fan breaker then the wire goes to the junction box over the fan.

Mike
Title: Re: Help! High Temp light on Generator
Post by: DayDreamer on June 29, 2020, 03:22:59 pm
To add to what Mike said, if yours has a control box like this, check to ensure the small breaker is reset and toggle off/on the switch for the fan.  This is from a 1997, so yours might be different.
Title: Re: Help! High Temp light on Generator
Post by: Farrarkc on June 29, 2020, 03:33:03 pm
Seems as if I had some mud dobbers make a nest in the fan cage causing just enough resistance that the fan would not turn. Knocked it out and she took off.

Thank you everyone!
Title: Re: Help! High Temp light on Generator
Post by: DayDreamer on June 29, 2020, 03:37:13 pm
Seems as if I had some mud dobbers make a nest in the fan cage causing just enough resistance that the fan would not turn. Knocked it out and she took off.

Thank you everyone!
Gotta like those like of fixes! 
Title: Re: Help! High Temp light on Generator
Post by: John and Stacey on June 29, 2020, 04:45:25 pm
Check fluid....Check petcock above thermostat (bleed for air).....circuit breaker is small button on front of control box.
John
Title: Re: Help! High Temp light on Generator
Post by: hdff on June 29, 2020, 09:25:22 pm
If the generator will run for a few minutes you should be able to tell if the fan is on. When it's cool open the petcock at the top of the radiator and see if coolant comes out. If it doesn't get a helper, open the petcock and SLOWLY pour coolant in the radiator cap on the generator till it comes out the petcock and have your helper close it while you pour till the coolant overflows. Start the Ginny and if the water/coolant goes down pour till it fills up and put the cap on.. it will probably be best to turn the 2 breakers ( in the pic in the left corner) off while trying this to not have the voltage going off and on to the transfer switch, just don't forget to turn them back on when you get the problem solved. Does the high temp light come on when it shuts down? I had a shutting down problem and it ended up being the control board that has the lights on it...


Keith