Skip to main content
Topic: Roof Colman TSR Not cooling (Read 420 times) previous topic - next topic

Roof Colman TSR Not cooling

Hi

One of my roof unit a Colman TSR is working but not really cooling.  Acting like it has low freon.  I was told it is a close unit so it can not be recharged.  Short of buying a new roof unite any thing I can do?  If I have to buy a new one do all the Colman unites have similar footprint?  Is it just replace and bolt it on.

Thanks!

Ted
Ted and Sheryl
1993 U225 Grand Villa

Re: Roof Colman TSR Not cooling

Reply #1
Ted,

Apparently fan is running. Can you tell if the compressor is trying to start & run?

Pamela & Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Roof Colman TSR Not cooling

Reply #2
Have you taken off the cover and given it a good cleaning??
Tim Fiedler    2025 LTV Unity MBL on Order
2000 Chevy Tracker 2 Door Convertible 4WD Now lifted 4.5"
1985 Citroen 2CV6 Charleston
Murphy Rebel on wheels with 175HP Titan
Cessna P337
1980 48' Westport MY (!/4 Share)

Re: Roof Colman TSR Not cooling

Reply #3
Yes, start by cleaning the EVAPORATOR as well as the condenser.  Many times the evaporator is totally clogged with dirt-- the filters are not really that effective. Both are done from the roof.  You will need to remove some of the sheet metal to access the evaporator.

Brett
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Roof Colman TSR Not cooling

Reply #4
Thanks guys

I will climb on the roof to check it though I have no idea how these things work

Ted
Ted and Sheryl
1993 U225 Grand Villa