Good Sam Club Open Roads Forum: Fifth-Wheels: Ditching Dometic Thermostat?


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cavie

Port Charlotte Fl/ Hindsdale MA

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Posted: 07/09/20 03:42am

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time2roll wrote:

Super_Dave wrote:

Can I swap out my POS Dometic Thermostat with a simple household thermostat?

Not if it is digital.

Post the model number or a picture.

Why not? I have replaced 2 analogs with digitalis in two trailers

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djousma

SW Michigan

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Posted: 07/09/20 05:35am

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Super_Dave wrote:

Can I swap out my POS Dometic Thermostat with a simple household thermostat?

These thermostats are fine. I have the same ones, and had the same problems and frustrations as you. The problem I suspect with yours is that they had a bad batch of the touch screens causing the erratic behavior. Call Dometic customer service, describe the problem, and they will send you replacement face plates for free.

Since I have done that, the problem has completely gone away.

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sayoung

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Posted: 07/09/20 06:41am

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cavie wrote:

time2roll wrote:

Super_Dave wrote:

Can I swap out my POS Dometic Thermostat with a simple household thermostat?

Not if it is digital.

Post the model number or a picture.

Why not? I have replaced 2 analogs with digitalis in two trailers

One more time. The newer Dometic thermostat " talks " to the AC/furnace with a digital signal. The thermostat doesn't send the power directly to the fan relay & compressor contactor .

time2roll

Southern California

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Posted: 07/09/20 10:10am

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cavie wrote:

time2roll wrote:

Super_Dave wrote:

Can I swap out my POS Dometic Thermostat with a simple household thermostat?

Not if it is digital.

Post the model number or a picture.

Why not? I have replaced 2 analogs with digitalis in two trailers

The wiring and communication is different on the new units.

cavie, Did your thermostat look like this?

[image]

These old and obsolete thermostats can be easily converted to a home unit.

When I say "digital" I mean the communication with the control box... not the LCD display.

* This post was edited 07/09/20 02:09pm by time2roll *

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Super_Dave

Harrisville, UT

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Posted: 07/09/20 02:04pm

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So, per my picture, what do I have?

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Chris Bryant

Arden, North Carolina

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Posted: 07/09/20 02:06pm

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Yours cannot be replaced without replacing the control box.

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time2roll

Southern California

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Posted: 07/09/20 02:10pm

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Chris Bryant wrote:

Yours cannot be replaced without replacing the control box.

Is there a source to buy the old analog control box?

justme

USA

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Posted: 07/10/20 01:30pm

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Super_Dave wrote:

Can I swap out my POS Dometic Thermostat with a simple household thermostat?

Just curious why you think it is a POS. Could you clarify?

Super_Dave

Harrisville, UT

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Posted: 07/10/20 03:46pm

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Justme, my living room thermostat is on the wall in my stairway to the bedroom. It gets bumped all the time and goes to a blank screen or switches to Celsius. Additionally, the air conditioner will run and time itself out before bringing temperature down to set temp. It requires turning the thermostat off for a minute and turning it back on to get it to continue running.

wvcampers

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Posted: 07/10/20 08:10pm

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Mine was doing the same as the OP. They will work great without the cover/touch pad. I called Dometic and explained what was happening and they sent me 2 whole thermostats. They are working like they should. They did have some bad ones. Give them a call.

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