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Chassis A/C - Printable Version +- Wanderlodge Gurus - The Member Funded Wanderlodge Forum (http://www.wanderlodgegurus.com) +-- Forum: Yahoo Groups Archive (/forumdisplay.php?fid=61) +--- Forum: WanderlodgeForum (/forumdisplay.php?fid=63) +--- Thread: Chassis A/C (/showthread.php?tid=1219) Pages: 1 2 |
Chassis A/C - john duke - 08-21-2005 09:02 Does any one happen to know where the T-stat switch for the chassis A/C on a 1991 SP36 is located. My system would love to work but the compressor will not kick in unless jumped. Then it works,so i supect the T-Stat switch fails to tell the compressor "ITS HOT MAN, START COOLING....". All other stuff works, so no C/B popped etc. Randy? Jeff? Mike? George? Juergen in PA 1991 WLSP36 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Chassis A/C - Tom Seitz - 08-21-2005 12:58 Juergen, In my 90 SP it is located on the drivers side in the upper dash overhead compartment. But just a thought. If your system has a low pressure switch?? That could be the problem too. Tom 90 SP36 --- In WanderlodgeForum@yahoogroups.com, john duke > Does any one happen to know where the T-stat switch > for the chassis A/C on a 1991 SP36 is located. My > system would love to work but the compressor will not > kick in unless jumped. Then it works,so i supect the > T-Stat switch fails to tell the compressor "ITS HOT > MAN, START COOLING....". All other stuff works, so no > C/B popped etc. Randy? Jeff? Mike? George? > Juergen in PA > 1991 WLSP36 > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com Chassis A/C - mrdonut12 - 08-21-2005 15:00 I don't know the specifics of the coach, but mobile air thermostats are located at the evaporator (the actual cooling coils for the AC). There will be a copper tube that leads to it. If it's the pressure switch, that's usually under the hood and has a 2 wire switch to it. You can unplug the switch and put a jumper wire connecting the 2 connectors together. Then the compressor should come on. It will look like an oil pressure sending unit screwed into the AC line with 2 wires coming off it. Hope this helps. George Witt 81 FC 35 Lincoln, Nebraska --- In WanderlodgeForum@yahoogroups.com, "Tom Seitz" > Juergen, In my 90 SP it is located on the drivers side in the upper > dash overhead compartment. But just a thought. If your system has a > low pressure switch?? That could be the problem too. > Tom 90 SP36 > > --- In WanderlodgeForum@yahoogroups.com, john duke > > > Does any one happen to know where the T-stat switch > > for the chassis A/C on a 1991 SP36 is located. My > > system would love to work but the compressor will not > > kick in unless jumped. Then it works,so i supect the > > T-Stat switch fails to tell the compressor "ITS HOT > > MAN, START COOLING....". All other stuff works, so no > > C/B popped etc. Randy? Jeff? Mike? George? > > Juergen in PA > > 1991 WLSP36 > > > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam protection around > > http://mail.yahoo.com Chassis A/C - George Lowry - 08-22-2005 15:25 Hi John, Don't know about your coach, but I found out on my coach that I had to turn on the blower before the compressor will come on. There is also a compressor switch on the heat/AC control panel. Once I found those two, it works great. George john duke wrote: > Does any one happen to know where the T-stat switch > for the chassis A/C on a 1991 SP36 is located. My > system would love to work but the compressor will not > kick in unless jumped. Then it works,so i supect the > T-Stat switch fails to tell the compressor "ITS HOT > MAN, START COOLING....". All other stuff works, so no > C/B popped etc. Randy? Jeff? Mike? George? > Juergen in PA > 1991 WLSP36 > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > > > > Yahoo! Groups Links > > > > > > > > > Chassis A/C - David Brady - 03-04-2006 08:05 Before an after a 100 mile drive I checked to see if the compressor was clutching-up and it wasn't. Does anyone know what kind of circuit breakers or fuses are in the compressor control path? a schematic would be very useful. I have a decent set of tools with me so any suggestions for diagnosing are greatly appreciated. Thanks again, David Brady '02 LXi, Smokey, Va Gregory OConnor wrote: >David, does the engine fan clutch up? did you try this with the >engine running and warm and the interior thermostat set lower than >interior temp? some systems will not clutch up during startup of the >vehicle. I have a 92 cummings M14 in a truck that stores codes for >the ac functions. Having the computer read reveals volumns. >Greg--- In Wanderlodge_all@yahoogroups.com, David Brady >wrote: > > >>Folks, >> >>My chassis air conditioning isn't working. I haven't >>found any blown fuses or circuit breakers. The control >>switch wiring looks okay. If I turn on the key and toggle >>the dash ac switch I don't see any voltage changes on the >>wires going to the compressor (in the engine compartment), >>nor do I hear any relay chatter. The compressor doesn't >>seem to be engaging. Any ideas on what I can check? >> >>Thanks, >>David Brady >>'02 LXi, Smokey, Va >> >> >>-- >>No virus found in this outgoing message. >>Checked by AVG Free Edition. >>Version: 7.1.375 / Virus Database: 268.1.1/272 - Release Date: >> >> >3/1/2006 > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date: 3/3/2006 Chassis A/C - Ralph L. Fullenwider - 03-04-2006 08:15 David: If your talking about the Coach aA/C compressor, it should be fuses 5 and 6 that control that. Ralph At 03:05 PM 3/4/2006 -0500, you wrote: >Before an after a 100 mile drive I checked to see if the compressor >was clutching-up and it wasn't. Does anyone know what kind of >circuit breakers or fuses are in the compressor control path? a >schematic would be very useful. I have a decent set of tools with >me so any suggestions for diagnosing are greatly appreciated. > >Thanks again, >David Brady >'02 LXi, Smokey, Va > >Gregory OConnor wrote: > > >David, does the engine fan clutch up? did you try this with the > >engine running and warm and the interior thermostat set lower than > >interior temp? some systems will not clutch up during startup of the > >vehicle. I have a 92 cummings M14 in a truck that stores codes for > >the ac functions. Having the computer read reveals volumns. > >Greg--- In Wanderlodge_all@yahoogroups.com, David Brady > >wrote: > > > > > >>Folks, > >> > >>My chassis air conditioning isn't working. I haven't > >>found any blown fuses or circuit breakers. The control > >>switch wiring looks okay. If I turn on the key and toggle > >>the dash ac switch I don't see any voltage changes on the > >>wires going to the compressor (in the engine compartment), > >>nor do I hear any relay chatter. The compressor doesn't > >>seem to be engaging. Any ideas on what I can check? > >> > >>Thanks, > >>David Brady > >>'02 LXi, Smokey, Va > >> > >> > >>-- > >>No virus found in this outgoing message. > >>Checked by AVG Free Edition. > >>Version: 7.1.375 / Virus Database: 268.1.1/272 - Release Date: > >> > >> > >3/1/2006 > > > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > > > >-- >No virus found in this outgoing message. >Checked by AVG Free Edition. >Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date: 3/3/2006 > > > > >Yahoo! Groups Links > > > > Safe travels, Ralph and Charolette Fullenwider Ralph's RV Solutions, Duncan, Oklahoma http://home.swbell.net/rlf47/index.htm Chassis A/C - George Lowry - 03-04-2006 10:01 David, Had a similar problem with our '95 bird. At the compressor, you should find a wire that goes to the clutch. Mine had a connector that I could unplug, If it is a butt connector, just cut the wire. Two checks. First; with the key in the on position and the A/C controls set for cooling, check the wire end that comes from the harness for 12 volts. If you are not getting 12 volts, you probably have a blown fuse or other similar problem. Second; using an ohm meter, check the wire going to the clutch for continuity. The clutch is internally grounded so you should get a very low resistance reading. If it shows infinite resistance, the clutch coil is open and needs to be replaced. A confirming test is to use a jumper wire and connect 12 volts to the wire to the clutch. If the clutch is ok, it will pull in. That will give you a starting point. George Lowry '06 Alpine Apex - Formerly '95 Wbda 4203 Spearfish, SD Now in Gila Bend, AZ David Brady wrote: > Before an after a 100 mile drive I checked to see if the compressor > was clutching-up and it wasn't. Does anyone know what kind of > circuit breakers or fuses are in the compressor control path? a > schematic would be very useful. I have a decent set of tools with > me so any suggestions for diagnosing are greatly appreciated. > > Thanks again, > David Brady > '02 LXi, Smokey, Va > > Gregory OConnor wrote: > > >>David, does the engine fan clutch up? did you try this with the >>engine running and warm and the interior thermostat set lower than >>interior temp? some systems will not clutch up during startup of the >>vehicle. I have a 92 cummings M14 in a truck that stores codes for >>the ac functions. Having the computer read reveals volumns. >>Greg--- In Wanderlodge_all@yahoogroups.com, David Brady >>wrote: >> >> >> >>>Folks, >>> >>>My chassis air conditioning isn't working. I haven't >>>found any blown fuses or circuit breakers. The control >>>switch wiring looks okay. If I turn on the key and toggle >>>the dash ac switch I don't see any voltage changes on the >>>wires going to the compressor (in the engine compartment), >>>nor do I hear any relay chatter. The compressor doesn't >>>seem to be engaging. Any ideas on what I can check? >>> >>>Thanks, >>>David Brady >>>'02 LXi, Smokey, Va >>> >>> >>>-- >>>No virus found in this outgoing message. >>>Checked by AVG Free Edition. >>>Version: 7.1.375 / Virus Database: 268.1.1/272 - Release Date: >>> >>> >> >>3/1/2006 >> >> >> >> >> >> >> >> >> >>Yahoo! Groups Links >> >> >> >> >> >> >> >> >> >> > > > > > Chassis A/C - David Brady - 03-04-2006 12:21 Thanks Ralph, at which load center are those fuses located. I have a load center at the rear of the bus, one above the pilot area, and one at the copilot's footwell. There's also a fuse/relay box on the outside of the bus below the pilot's side window. Thanks, David Brady '02 LXi, Smokey, Va Ralph L. Fullenwider wrote: >David: > >If your talking about the Coach aA/C compressor, it should be fuses 5 and 6 >that control that. > >Ralph > >At 03:05 PM 3/4/2006 -0500, you wrote: > > >>Before an after a 100 mile drive I checked to see if the compressor >>was clutching-up and it wasn't. Does anyone know what kind of >>circuit breakers or fuses are in the compressor control path? a >>schematic would be very useful. I have a decent set of tools with >>me so any suggestions for diagnosing are greatly appreciated. >> >>Thanks again, >>David Brady >>'02 LXi, Smokey, Va >> >>Gregory OConnor wrote: >> >> >> >>>David, does the engine fan clutch up? did you try this with the >>>engine running and warm and the interior thermostat set lower than >>>interior temp? some systems will not clutch up during startup of the >>>vehicle. I have a 92 cummings M14 in a truck that stores codes for >>>the ac functions. Having the computer read reveals volumns. >>>Greg--- In Wanderlodge_all@yahoogroups.com, David Brady >>>wrote: >>> >>> >>> >>> >>>>Folks, >>>> >>>>My chassis air conditioning isn't working. I haven't >>>>found any blown fuses or circuit breakers. The control >>>>switch wiring looks okay. If I turn on the key and toggle >>>>the dash ac switch I don't see any voltage changes on the >>>>wires going to the compressor (in the engine compartment), >>>>nor do I hear any relay chatter. The compressor doesn't >>>>seem to be engaging. Any ideas on what I can check? >>>> >>>>Thanks, >>>>David Brady >>>>'02 LXi, Smokey, Va >>>> >>>> >>>>-- >>>>No virus found in this outgoing message. >>>>Checked by AVG Free Edition. >>>>Version: 7.1.375 / Virus Database: 268.1.1/272 - Release Date: >>>> >>>> >>>> >>>> >>>3/1/2006 >>> >>> >>> >>> >>> >>> >>> >>> >>> >>>Yahoo! Groups Links >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> >> >>-- >>No virus found in this outgoing message. >>Checked by AVG Free Edition. >>Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date: 3/3/2006 >> >> >> >> >>Yahoo! Groups Links >> >> >> >> >> >> > >Safe travels, > >Ralph and Charolette Fullenwider >Ralph's RV Solutions, Duncan, Oklahoma >http://home.swbell.net/rlf47/index.htm > > > > >Yahoo! Groups Links > > > > > > > > > > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date: 3/3/2006 Chassis A/C - David Brady - 03-04-2006 12:22 Thanks for the suggestion Randy, but no go on the wiggle. I'll be visition Josam's in Orlando on Monday, maybe they can have a look at it. David '02 LXi, Smokey, Va randydupree wrote: >if you wiggle the wires on the low pressure switch on the compressor does it >make it work? i have to do this alot on the GM cars we have. with the ac >turned on,engine running,wiggle the wires on the comp. and on the hoses.. >randy >----- Original Message ----- >From: "David Brady" >To: >Sent: Saturday, March 04, 2006 2:56 PM >Subject: Re: [Wanderlodge_all] Re: Chassis A/C > > > > >>Before an after a 100 mile drive I checked to see if the compressor >>was clutching-up and it wasn't. Does anyone know what kind of >>circuit breakers or fuses are in the compressor control path? a >>schematic would be very useful. I have a decent set of tools with >>me so any suggestions for diagnosing are greatly appreciated. >> >>Thanks again, >>David Brady >>'02 LXi, Smokey, Va >> >>Gregory OConnor wrote: >> >> >> >>>David, does the engine fan clutch up? did you try this with the >>>engine running and warm and the interior thermostat set lower than >>>interior temp? some systems will not clutch up during startup of the >>>vehicle. I have a 92 cummings M14 in a truck that stores codes for >>>the ac functions. Having the computer read reveals volumns. >>>Greg--- In Wanderlodge_all@yahoogroups.com, David Brady >>>wrote: >>> >>> >>> >>> >>>>Folks, >>>> >>>>My chassis air conditioning isn't working. I haven't >>>>found any blown fuses or circuit breakers. The control >>>>switch wiring looks okay. If I turn on the key and toggle >>>>the dash ac switch I don't see any voltage changes on the >>>>wires going to the compressor (in the engine compartment), >>>>nor do I hear any relay chatter. The compressor doesn't >>>>seem to be engaging. Any ideas on what I can check? >>>> >>>>Thanks, >>>>David Brady >>>>'02 LXi, Smokey, Va >>>> >>>> >>>>-- >>>>No virus found in this outgoing message. >>>>Checked by AVG Free Edition. >>>>Version: 7.1.375 / Virus Database: 268.1.1/272 - Release Date: >>>> >>>> >>>> >>>> >>>3/1/2006 >>> >>> >>> >>> >>> >>> >>> >>> >>> >>>Yahoo! Groups Links >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> >>-- >>No virus found in this outgoing message. >>Checked by AVG Free Edition. >>Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date: 3/3/2006 >> >> >> >> >>Yahoo! Groups Links >> >> >> >> >> >> >> >> >> > > > > >Yahoo! Groups Links > > > > > > > > > > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date: 3/3/2006 Chassis A/C - Ralph L. Fullenwider - 03-04-2006 12:58 Dave: It should be in the outside electrical compartment. Ralph At 07:21 PM 3/4/2006 -0500, you wrote: >Thanks Ralph, at which load center are those fuses located. >I have a load center at the rear of the bus, one above the >pilot area, and one at the copilot's footwell. There's >also a fuse/relay box on the outside of the bus below the >pilot's side window. > >Thanks, >David Brady >'02 LXi, Smokey, Va > >Ralph L. Fullenwider wrote: > > >David: > > > >If your talking about the Coach aA/C compressor, it should be fuses 5 and 6 > >that control that. > > > >Ralph > > > >At 03:05 PM 3/4/2006 -0500, you wrote: > > > > > >>Before an after a 100 mile drive I checked to see if the compressor > >>was clutching-up and it wasn't. Does anyone know what kind of > >>circuit breakers or fuses are in the compressor control path? a > >>schematic would be very useful. I have a decent set of tools with > >>me so any suggestions for diagnosing are greatly appreciated. > >> > >>Thanks again, > >>David Brady > >>'02 LXi, Smokey, Va > >> > >>Gregory OConnor wrote: > >> > >> > >> > >>>David, does the engine fan clutch up? did you try this with the > >>>engine running and warm and the interior thermostat set lower than > >>>interior temp? some systems will not clutch up during startup of the > >>>vehicle. I have a 92 cummings M14 in a truck that stores codes for > >>>the ac functions. Having the computer read reveals volumns. > >>>Greg--- In Wanderlodge_all@yahoogroups.com, David Brady > >>>wrote: > >>> > >>> > >>> > >>> > >>>>Folks, > >>>> > >>>>My chassis air conditioning isn't working. I haven't > >>>>found any blown fuses or circuit breakers. The control > >>>>switch wiring looks okay. If I turn on the key and toggle > >>>>the dash ac switch I don't see any voltage changes on the > >>>>wires going to the compressor (in the engine compartment), > >>>>nor do I hear any relay chatter. The compressor doesn't > >>>>seem to be engaging. Any ideas on what I can check? > >>>> > >>>>Thanks, > >>>>David Brady > >>>>'02 LXi, Smokey, Va > >>>> > >>>> > >>>>-- > >>>>No virus found in this outgoing message. > >>>>Checked by AVG Free Edition. > >>>>Version: 7.1.375 / Virus Database: 268.1.1/272 - Release Date: > >>>> > >>>> > >>>> > >>>> > >>>3/1/2006 > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>>Yahoo! Groups Links > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >> > >> > >>-- > >>No virus found in this outgoing message. > >>Checked by AVG Free Edition. > >>Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date: 3/3/2006 > >> > >> > >> > >> > >>Yahoo! Groups Links > >> > >> > >> > >> > >> > >> > > > >Safe travels, > > > >Ralph and Charolette Fullenwider > >Ralph's RV Solutions, Duncan, Oklahoma > >http://home.swbell.net/rlf47/index.htm > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > > >-- >No virus found in this outgoing message. >Checked by AVG Free Edition. >Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date: 3/3/2006 > > > > >Yahoo! Groups Links > > > > Safe travels, Ralph and Charolette Fullenwider Ralph's RV Solutions, Duncan, Oklahoma http://home.swbell.net/rlf47/index.htm |