Troubleshoot And Replace This Coleman Mach 8 RV Air Conditioner

Certified Mobile RV Technician, Darren Koepp, walks you through the steps he took to troubleshoot this RV air conditioner. Watch as he takes you on the trail of 120 volts through this Coleman Mach 8 to determine that the pressure switch had failed, resulting in an entirely new air conditioner being installed under warranty.

If you are in need of RV Repairs in the Olympic Peninsula area of Washington state, submit a service request on our website at today!

Link to the crane/hoist video:

Topic: Coleman Mach Diagnosis & R&R (Using Darren’s RV A/C Crain Tool)

Wera Insulated Screwdriver Set –
Knipex 10-Inch Cobra Pliers –
DEWALT 12-Volt 1/4-Inch Impact Driver –
DEWALT 3-Piece Impact-Ready Pivoting Nutsetters –
MILWAUKEE 6″ Bit Holder –

Test Equipment:
Fluke 325 Clamp Multimeter AC-DC TRMS –
Fluke 1AC-A1-II VoltAlert Non-Contact Voltage Tester –
Fluke Rigid Back Probe Pin Set, 2″ Length –
Fluke Bucktooth Alligator Clip Set –
Fluke Premium Test Lead Set, Right Angle –

Shop Supplies:
Color Coding Electrical Tape –
Paint Pens –

Gelfit Thigh Support Stabilization Knee Pads –
PETZL – Tikka Headlamp –
Maxiflex 34-874 Ultimate Nitrile Grip Work Gloves –
Folding Track/Work Mat –
Happy Camper Embroidered Cap –
Propper Men’s Short Sleeve Tactical Shirt –
Propper Men’s Tactical Pant Poly/Cotton Ripstop –

Related Video’s:
RV Air conditioner Play List:

Film Date: 8/28/2019
Location: Sequim , WA (GilGal Oasis RV Park)

Samsung Galaxy Note8
Native Camera
16:9 FHD 1920×1080
Wireless Microphone System –
60-Inch Lightweight Tripod –

“My RV Works-Jam”
Composed by Steve Patry – Four Faces Band


8 replies
  1. Paula & Charlie
    Paula & Charlie says:

    There is no price that can be put on the time and information you unselfishly provide. One has to wonder if lack of use was the culprit for this failure? Equipment was meant to be run and used, not sit idly by.


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