John E. Mitchell Co for Service call 1-336-969-0110 at Industrial Electronics Repair

John E. Mitchell Co Service & Repair Forum

I have a 1987 Holiday Rambler Aluma-lite motorhome. The heater core is leaking and I need a new one. I found some literature in the manual that came with the motorhome. It has a diagram and a parts list for a 07-100 heat/cool unit with the name John E Mitchell Co. on it. It is 15 and 1/2 inch X 6 and 1/4 inch X 2 inches nominally. Any help would be appreciated.Larry

— Posted by Larry Wagner on 2012-01-07

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If you need your John E. Mitchell Co unit tested or repaired,
give us a call at 1-336-969-0110.
We offer fair estimates and extended warranties on the work performed.
Shipping/Receiving:
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110

Recent 19 Comments

#John E. Mitchell Co by mike on 2009-07-23 16:21

could you please tell me where i could get a service and repair manual for a mark iv mobile air conditioning unit. thak you for any help you can give me. mike burnash

#John E. Mitchell Co by Kevin on 2009-08-08 07:07

I like to know if you can get the rest of or make a complete unit out of what I just purchased on ebay. It\'s the old Mark IV unit that came out of a 1976 Chevy Vega. I would very much like to have it retrofited with the new refrigereant. What I have is the control unit with the vents with out hoses...
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#John E. Mitchell Co by Eugene A. Slater on 2009-09-06 20:49

bought this antique camper, in it was this above unit....the evaporator housing and duct work is fine, but there is a missing part on the evaporator, it seems to be a piece, I think the expansion valve, as the pressure line was hanging loose, and both ends, on the coil and on the hose seem identical...
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#John E. Mitchell Co by RJ Wall on 2010-10-21 16:49

Good Day Sirs ! I have a Mark IV Caravan Unit Serial # 484 1283 Model # 478 or 47B Mounted on My 1973 LeasureTime MotorHome Roof ~ OEM , I think .. # 1 Fan still works > no cooling ( solution ?? ) # 2 Need a very good Used or new Outter Plastic Case , this one is cracked and in bad shape . Price ...
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#John E. Mitchell Co by Jason Aguiar on 2010-12-15 04:50

I have a air conditioner unit that is model number 258-13422.can it be repaired or tested and how much will it cost?

#John E. Mitchell Co by Rose Strasser on 2011-05-07 18:52

We have a 1971 Holiday Rambler travel trailer with the air conditioner cover broken. Is there a way to get a new cover to put back on it. It is stamped John E Mitchell Co. Rv445214. Please get back to us

#John E. Mitchell Co by sam @ agri center on 2011-05-18 18:16

need to know price and availability of condencer for this unit serial number 503-7328

#John E. Mitchell Co by Eric Hartman on 2011-05-25 14:29

Hi! I need a new shroud for a Caravan Mark IV A/C unit on a \'63 Avion travel trailer. Do you have any suggestions? Thanks a lot!

#John E. Mitchell Co by ben c tyler on 2011-09-03 20:22

for a 1971 rv

#John E. Mitchell Co by Larry Spleas on 2011-12-14 07:16

Hello: I found this post about the Mark 1V caravan RV air conditioner. My unit is: Model 478 serial 491-1824 Is the parts (plastic top) anywhere to be found.

#John E. Mitchell Co by Larry Wagner on 2012-01-07 22:43

I have a 1987 Holiday Rambler Aluma-lite motorhome. The heater core is leaking and I need a new one. I found some literature in the manual that came with the motorhome. It has a diagram and a parts list for a 07-100 heat/cool unit with the name John E Mitchell Co. on it. It is 15 and 1/2 inch X 6 an...
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#John E. Mitchell Co by Eddie J Kadlecek on 2012-03-03 04:58

lookong for a pair of chrome knobs for like fridge king original john E Mitcheell e- mail me at skibige@satx.rr.com or call 210-286-4527

#John E. Mitchell Co by paulbeartil on 2012-04-14 13:33

hi there they will give you there correct sizes if you tell them the height paul

#John E. Mitchell Co by Ed Smith on 2012-06-03 19:57

Hello,I have a John E. Mitchell under dash straight cool \"Escort\" unit with some broken vents, and I would like to know if you have some replacement vents for sale?

#John E. Mitchell Co by Chett A Collins on 2014-08-25 11:00

Just bought 1976 ford rv that has coleman ac unit in roof/ can this be recharged?

#John E. Mitchell Co by Edward Filipowski on 2015-07-07 14:32

I have an 81 Ford Mustang with a Mark IV ac unit installed and I need to replace the stock heater unit, but the condenser assembly is in the road. Do you have install instructions for your adapter kit # 8006274? Thank you, Ed

#John E. Mitchell Co by David Hall on 2015-07-29 23:41

are parts such as knobs, vents available for older units? thank you david

#John E. Mitchell Co by john bube on 2018-12-03 19:55

I have a Mark IV mobile air conditioner that the blower motor has failed. it is a in dash model , the motor # is 25910 (12v 3-speed single shaft CCW) do you have this part. Thank you John Bube (920) 979-3669

#John E. Mitchell Co by Kurt Laederach on 2021-09-16 10:33

Hi there,I have a John E. Mitchell a/c Unit Mark IV with the serial M-310655. Do yu perhaps have a wiring diagram of this unit? I would be happy to hear from you asap.Best regards,Kurt

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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.

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Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
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