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Defrost Setting [message #359556]

Sun, 18 October 2020 11:38

Greg C.

Messages: 224
Registered: October 2019
Location: Knoxville, TN

Karma:

Senior Member

I have read on this forum and in the manual about the HVAC system on my coach.

One thing I came across more than once is that it should FAIL in warm/defrost mode.

Well, mine will not defrost. It seems like I also read that defrost mode is zero vacuum, or vacuum bleed position. I only have air coming out of the AC vents, hardly any at the heater vent, and none at the defrost vent, no matter what position the control is in. The vacuum line plug is tight on the back of the control.

Is there any position on the control where the main vacuum source line would hold vacuum?

Any suggestions on the Defrost issue?

Greg Crawford KM4ZCR Knoxville, TN "Ruby Sue" 1977 Royale Rear Bath 403 Engine American Eagle Wheels Early Version Alex Sirum Quad bags

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[Message index]

		Defrost Setting By: Greg C. on Sun, 18 October 2020 11:38
		Re: Defrost Setting By: 94nubble on Wed, 21 October 2020 08:51
		Re: Defrost Setting By: JohnL455 on Wed, 21 October 2020 17:51
		Re: Defrost Setting By: JShot on Sun, 25 October 2020 15:20

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