Aquahot Webasto quit

gumpy · September 18, 2016, 07:27:12 PM

Camping this weekend. I started Aquahot diesel burner for a bit of heat at night. It ran for about 3 minutes and abruptly stopped. It now won't start. When I turn it on, it doesn nothing (supposed to start the fan). After about 30 seconds, there's a buzzing sound, which I think is probably the spark igniters.

I checked all the fuses and voltages on the outside. I can hear a relay in the control box clicking.

Has anyone had anything similar happen with a webasto burner?

Gary Hatt - Publisher BCM · September 18, 2016, 07:37:22 PM

Contact Lloyd Degerald Services tomorrow morning. His ad is in our magazine every month. He is an expert on this stuff and is more than willing to help you over the phone free of charge for all Forum members.

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opus · September 18, 2016, 07:45:03 PM

Change the nozzle lately? Clean the igniters lately? Fuel filter been changed? Clean the flame eye? Fan should start regardless of these though.

Figure I'd give you something to ponder til expert help arrives.

luvrbus · September 18, 2016, 08:21:09 PM

Mine did that and it was the control thermostat the green and red wire I think

Dave5Cs · September 18, 2016, 09:33:08 PM

It seems when something in our coach just quits it turns out to be a fuse.

Gary Hatt - Publisher BCM · September 18, 2016, 09:40:09 PM

That is why I carry 8 penny nails cut to the length of a fuse to replace each fuse after the blow more than once. That seems to solve the problem every time.

Just kidding, DON'T try this at home!!!

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eagle19952 · September 18, 2016, 10:16:38 PM

Quote from: Gary Hatt - Publisher BCM on September 18, 2016, 09:40:09 PM
That is why I carry 8 penny nails cut to the length of a fuse to replace each fuse after the blow more than once. That seems to solve the problem every time.

Just kidding, DON'T try this at home!!!

Sent from my SM-G920V using Tapatalk

22LR bullets work too....

thomasinnv · September 18, 2016, 10:18:41 PM

Quote from: Gary Hatt - Publisher BCM on September 18, 2016, 07:37:22 PM
Contact Lloyd Degerald Services tomorrow morning. His ad is in our magazine every month. He is an expert on this stuff and is more than willing to help you over the phone free of charge for all Forum members.

Sent from my SM-G920V using Tapatalk

Ditto on this, really nice guy. Worked on a few different rigs for me.

Lloyds Cell# 501-258-8426

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Dave5Cs · September 19, 2016, 07:13:26 AM

Doesn't spearmint make fuses too, ummm!..

Cary and Don · September 19, 2016, 10:28:36 AM

aluminum foil works also. LOL
Don and Cary

gumpy · September 19, 2016, 10:43:53 AM

I talked to LLoyd. He gave me some ideas. I'll be digging into that today or tomorrow.

gumpy · September 19, 2016, 03:38:38 PM

I have heat again!

Thank you for the suggestion to call Lloyd. He was a great help. Ultimately, I found a cracked solder joint on one relay on the control board, and several others that were suspect. Cleaned and resoldered them and my AquaHot is back in business.

And I saved $900! That's what a new control board costs! Amazing! After I fixed it, I called him back to thank him and let him know it was working and what I found. He said he has a guy that rebuilds them for him, and he told him that quite often the problem is just a cracked solder joint! And I thought Germany was known for quality engineering.

So, for those of you with Webasto or Aquahot systems, I highly recommend Lloyd for service and advice. He said he is an authorized service dealer for Webasto and has all the parts. Well, he has all the parts Webasto sells. They don't sell the damn O-ring in the fuel pump that leaks!!

luvrbus · September 19, 2016, 04:48:10 PM

Must of been the Chinese solder lol glad it was a easy fix the friggn parts for Webasto can be serious bucks fwiw I read in a bus rag where MCI has dropped Webasto as a option now