powersltc Posted April 26, 2021 Share Posted April 26, 2021 Need help! Ron P. 2004 Monaco Executive I took my RV out yesterday and come nightfall it started getting chilly. I turned on the thermostat to furnace, fan blows but no heat and outside exhaust does not blow. Water heater not heating water. All was working two weeks ago. Link to comment Share on other sites More sharing options...
Lolo1034 Posted April 26, 2021 Share Posted April 26, 2021 Is it LP? Light the stove to draw gas, could just need prep 1 Link to comment Share on other sites More sharing options...
Guest Ray Davis Posted April 26, 2021 Share Posted April 26, 2021 40 minutes ago, powersltc said: Need help! Ron P. 2004 Monaco Executive I took my RV out yesterday and come nightfall it started getting chilly. I turned on the thermostat to furnace, fan blows but no heat and outside exhaust does not blow. Water heater not heating water. All was working two weeks ago. Turn the diesel switch off for a short time, minute or 2, then back on and see if it will fire up then. I would do that then go outside too see if the exhaust is blowing and after a short exhaust the burner should fire up. Even if it does you may be ready for a tune up. Link to comment Share on other sites More sharing options...
John Haggard Posted April 26, 2021 Share Posted April 26, 2021 All good advice. If the aqua hot was cold. It could take 30 to 60 minutes Depending LP Electric element only Diesel Also Check all aqua hot fuses, breakers Yes Tune up regardless Link to comment Share on other sites More sharing options...
Rick A Posted April 26, 2021 Share Posted April 26, 2021 (edited) Have a Diplomat. Sorry to be so obvious but Sounds like the LP is empty or shut off. Switch it off, wait a few minutes, switch it on, listen for the igniter to fire. If it doesn’t fire, would normally fire on first strike, but usually tries 3 times and then goes into failure mode and switches off until the problem is solved. If it’s not an empty LP tank, (try hooking up a regular BBQ tank) it’s sounds like a failed sail switch. That’s easy to replace there’s a YouTube on replacing it. Edited April 26, 2021 by Rick A Spelling Link to comment Share on other sites More sharing options...
Guest Ray Davis Posted April 26, 2021 Share Posted April 26, 2021 (edited) The OP didn't state that he has an Aqua-Hot but he has an 04 Executive so I'm quite sure it's an AH. Aqua-Hot does make a LP unit but they are rare, so again it's probably diesel. There is another point I forgot earlier and that is house battery voltage. If they are parked without shore power the house voltage can get low enough that the diesel burner will cease to operate, although the fans may still operate. Start the generator and try again. Edited April 26, 2021 by Ray Davis Link to comment Share on other sites More sharing options...
KevinH Posted April 26, 2021 Share Posted April 26, 2021 My Aqua hot has a reset button on the outside panel. Sometimes it trips not sure why I usually use a toothpick or a pic. And it comes right back on Link to comment Share on other sites More sharing options...
Paul Busch Posted April 27, 2021 Share Posted April 27, 2021 My 05 sig Aqua hot shuts down when diesel fuel is down to 1/4 full. Electric heater will still heat minimal water. paul Link to comment Share on other sites More sharing options...
powersltc Posted April 27, 2021 Author Share Posted April 27, 2021 Got a full tank, 150 gallons. Link to comment Share on other sites More sharing options...
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