Alde on 2018 320s: not heating after de-winterizing

Jhealy34 · March 2019

we used our alde last fall then winterized for winter. Last week we dewinterized and everything is working but the alde. I am trying to troubleshoot but no avail and looking for support.
Fuse not blown, hooked up to 30amp shoreline power, only using electric (not combo electric/gas), power at receptacle, hose levers all in proper position according to manual. I am not sure how to check glycol but I did not drain that last year.
What should I check next?

db_cooper · March 2019

If it's not the hidden fuses on top of the Alde itself, it could be the thermal fuse on the circuit board. I keep a jumper 12 gauge wire and alligator clips to clip around that one in an emergency. Easy to make one at a hardware store

Photomom · March 2019

Is it plugged in? Look under the seat where the Alde is and make sure the black electrical cord is plugged into the 120 volt outlet.

Bayliss · March 2019

@db_cooper , do you have any photos of how (and where on the board) you hook up the jumper cable?

Sharon_is_SAM · March 2019

Do you have a 320 (?model?) or a 400?
Do you have the digital display? Is that working?
Did you check the 2 Alde fuses located under the plastic lid AND the 12 v fuse in the fuse box? Assuming you have a 320, if it is plugged in under the bench, try it on LPG.

db_cooper · March 2019

https://tab-rv.vanillacommunity.com/discussion/4197/found-a-fix-for-no-alde-heat-when-all-fuses-are-good

See Chan's photo below!

Bayliss · March 2019

Thank you, @db_cooper . It really helps to have a photo, so I will copy it and hang on to it.

ChanW · March 2019

No! That's not the thermal fuse. That's a diode. (I have no idea what jumpering that diode would do!) @Bayliss.

@db_cooper you should probably edit your post so no one follows it by mistake!

The thermal fuse is here, in this photo.

Please check that referenced thread.

db_cooper · March 2019

Thanks, I was looking for a stock photo and find from memory. Will delete.

ChanW · March 2019

Thanks @db_cooper, hope I didn't sound like I was jumping down your throat. I was rushing to prevent someone's catastrophic Alde explosion!

db_cooper · March 2019

No worries! I was trying to be helpful, but was in a hurry, need to be more careful. Glad you spotted it!

Photomom · March 2019

If you jumper the thermal fuse F2, please consider that a very short term attempt only to find out whether the fuse is bad, not a permanent fix. That fuse is the last line of defense against the Alde incinerating itself.

lkc001 · March 2019

I would open up the area that holds the Alde and see if you have glycol in the tank or to see if you have had a crack in the tank over the winter. The glycol should be according to what I have read here, between the minimum & maximum line.

Jhealy34 · March 2019

Thanks everyone, we found the issue from your comments. Have heat and ready to roll!!!

ChanW · March 2019

Ok, I'll bite! What was the issue?

lkc001 · March 2019

@Jhealy34– yes please let us know your solution— it helps others in the future if they have the same issues!

ScottG · March 2019

Yeah, what they said!

lkc001 · March 2019

@Jhealy34??

BrianZ · March 2019

Probably was a fuse.
We may never know! 🙄

Verna · March 2019

If the glycol reservoir was dry, there would be no heat.

Voice of experience.....

Alde on 2018 320s: not heating after de-winterizing

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