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Aqua-hot burner not starting after Racor Filter change.

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Eric Maclean Co-Admin:
Mike
Does your coach have a water pump switch located  near the sink in the kitchen and if so is there not a switch right beside it marked water heater?
If so that water heater switch is the Aqua hot diesel control switch.

In the coach assist library the closest thing to an Aquahot wiring diagram is in the 1996 Patriot wiring diagram section ( second to last page)

Mike Sulley:
Gentlemen:

Well I found the elusive Kitchen switch.  It was on the underside of the overhead cabinet with the coach monitor.  At the far end near the refrigerator.  Recall seeing it, but its function escaped me.  It is sort of similar to switch in the 100-02S manual, but it only has two functions-diesel and engine preheat.  No fancy green and orange lites.

So I cleaned off the carbon on the ignitors and repositioned them to the nozzle.  And reassembled the burner.  The burner fired immediately upon flipping the diesel switch and We Had Heat!!  Let it run for a while and circulated all the air out of the lines.

Wish to thank all you gentlemen for all your help.  It's been a long learning journey from finding the leaking connection to performing the yearly burner maintenance.   I have learned a lot.  In the future I will not be so intimidated by the mention of Aqua-Hot.

Again, thank you all!!

Respectfully,
Mike Sulley

Dan Johnson:
Glad you found the switch. Sorry I missed your problem  because that is where mine is also. You got to stand on your head to read what the switch is for.  Another issue is the heater in the water bay. It is controlled by a button thermostat. It is hot all the time regardless whether the aqua hot is turned on. When the temp gets below the trigger temp it turns on the stir pump.  Not any more as I added a switch before the button thermostat

Eric Maclean Co-Admin:
Good work Mike
As you become familiar with the systems in your coach things get easier to understand and troubleshoot.

Happy travels and hot water.
Eric

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