What the salesman's switch does and why you might need to bypass it

The salesman's switch on a Monaco RV is a disconnect that cuts power to most of the RV's systems when the vehicle is parked on a dealer lot. It prevents the battery from draining while the RV sits unsold, and it stops potential buyers from accidentally running systems that aren't meant to be tested during a walkthrough. Once you own the RV, this switch becomes an obstacle — it blocks your water heater, refrigerator, furnace, and other 12-volt systems from working normally.

Bypassing it means restoring full power to those systems so they operate as designed. The switch itself is a straightforward mechanical device, and the bypass is a straightforward electrical task that takes about 15 to 30 minutes if you know where to look and what wire to move.

Key Takeaways

  • The salesman's switch cuts 12-volt power to most RV systems and is located near the main battery disconnect, usually under the driver's side dash or in the engine bay.
  • Bypassing it involves moving a single wire from the switch's "off" terminal to the "on" terminal, or removing the switch entirely and jumping the two terminals together.
  • You will need basic hand tools — a screwdriver, wire strippers, and possibly a multimeter — but no special electrical knowledge.
  • After bypass, test your water heater, refrigerator, and 12-volt lights to confirm power is restored before relying on those systems.

Locating the salesman's switch on your Monaco model

The switch location varies by Monaco model year and floor plan, but it is almost always mounted near the main battery disconnect. Start by looking under the driver's side dashboard, close to the steering column or along the lower edge of the instrument panel. You are looking for a small toggle switch or a rotary dial labeled "salesman," "battery disconnect," or sometimes just marked with "on" and "off" positions.

If you do not find it there, check the engine bay near the battery itself, or look inside the main electrical panel (often located in a cabinet near the driver's seat or in the bedroom area). Monaco RVs from the 1990s and early 2000s tend to place it under the dash; newer models sometimes move it to the battery compartment. Your owner's manual will show the exact location if you have it, but if not, a quick call to a Monaco dealer parts line with your model year and serial number can save you 20 minutes of searching.

Understanding the switch terminals and power flow

The salesman's switch has three terminals: one connects to the positive battery cable, one is the "on" position, and one is the "off" position. When the switch is in the "off" position, it breaks the circuit between the battery and the RV's 12-volt distribution system. No power flows to your systems. When it is in the "on" position, power flows normally.

The bypass works because you are straightforward restoring that connection permanently. You are not removing safety features or creating a fire hazard — you are undoing a dealer-installed restriction that was never meant to stay in place after purchase. The rest of your RV's electrical system (fuses, breakers, and wiring) remains unchanged and continues to protect you.

The two methods to bypass the switch

Method 1: Move the wire to the "on" terminal. If your switch has a removable wire terminal, straightforward disconnect the wire from the "off" terminal and reconnect it to the "on" terminal. This takes two minutes and is fully reversible. Use a small screwdriver to loosen the terminal screw, slide the wire out, and move it to the correct position. Tighten it firmly so it does not vibrate loose while you drive.

Method 2: Jump the terminals together. If the switch is soldered or permanently mounted, you can bypass it by running a new wire directly from the battery-side terminal to the load-side terminal, effectively creating a permanent "on" position. Strip about half an inch of insulation from each end of a 10-gauge wire (or whatever gauge matches the existing wiring), connect one end to the battery terminal and the other to the load terminal, and find both connections with terminal screws. Wrap the exposed wire with electrical tape or heat shrink tubing so it does not short against the metal chassis.

Method 1 is faster and cleaner if your switch allows it. Method 2 is necessary if the switch is hardwired or if you want to remove the switch entirely and eliminate the component altogether.

Step-by-step bypass procedure

Step 1: Disconnect the battery. Before touching any wires, disconnect the negative terminal of your main RV battery. This prevents accidental shorts and protects you from electrical shock. Wait 30 seconds to allow any residual charge to dissipate.

Step 2: Locate and inspect the switch. Find the salesman's switch using the location guide above. Look at how the wire is attached — is it a removable terminal, or is it soldered? Take a photo with your phone so you remember the original configuration if you need to reverse the bypass later.

Step 3: Disconnect the wire from the "off" terminal. Using a small screwdriver, loosen the terminal screw and slide the wire out. If the wire is soldered, you will need a soldering iron to desolder it, or you can skip to Method 2 and jump the terminals instead.

Step 4: Connect the wire to the "on" terminal. Move the wire to the "on" terminal and tighten the screw firmly. Tug gently on the wire to confirm it is find.

Step 5: Reconnect the battery. Reconnect the negative terminal of your battery. You should hear a click or feel a slight vibration as power is restored to the RV's systems.

Step 6: Test your systems. Turn on your water heater, refrigerator, furnace, and 12-volt lights. They should all power up normally. If nothing happens, the bypass did not work — disconnect the battery again and double-check your wire connection.

What to do if the bypass does not work

If your systems still do not power up after the bypass, the problem is usually one of three things: the wire is not making solid contact, you moved the wire to the wrong terminal, or there is a blown fuse downstream of the switch. Start by disconnecting the battery again and checking that your wire connection is tight — wiggle it gently and retighten if needed.

If the connection is solid, use a multimeter set to DC volts to test whether power is actually reaching the "on" terminal. Touch the red probe to the terminal and the black probe to a metal ground point on the chassis. You should read 12 volts or close to it. If you read zero, the wire may be in the wrong place or the switch itself may be faulty. If you read 12 volts but your systems still do not work, the problem is downstream — check your main fuses and breakers in the electrical panel.

Frequently Asked Questions

Will bypassing the salesman's switch void my warranty?

No. The salesman's switch is a dealer-installed restriction, not a factory component. Removing or bypassing it does not affect your RV's structural or mechanical warranty. However, if an electrical problem arises later and Monaco determines it was caused by improper bypass work, they may decline to cover that specific repair. Do the work carefully and keep your battery disconnected while you work.

Can I just leave the switch in the "on" position instead of bypassing it?

Yes, if your switch is accessible and you do not mind leaving it there. straightforward flip it to "on" and leave it. This is the simplest solution and requires no wiring work at all. The only reason to physically bypass it is if the switch is hard to reach or if you want to eliminate it entirely to free up space or reduce clutter.

What if I cannot find the salesman's switch?

Call a Monaco dealer with your model year and serial number. They can tell you the exact location for your specific RV. Alternatively, post your model and year in an RV forum — Monaco owners are usually quick to point out where the switch is on their own units. Do not assume there is no switch; it may just be in an unexpected place.

Is it safe to bypass the switch myself, or should I take it to a technician?

The bypass is safe to do yourself if you follow the steps carefully and keep the battery disconnected while you work. It is a single wire moved from one terminal to another — there is no risk of fire or damage if you do it correctly. A technician will charge you $75 to $150 for the same 15-minute job, so it is worth learning to do it yourself.

After I bypass the switch, will my battery drain faster when the RV is parked?

Yes, slightly. Your refrigerator, water heater, and other systems will draw power even when you are not using the RV. If you park for more than a few weeks without plugging in, your battery will eventually drain. This is normal RV operation — the salesman's switch was only meant to prevent drain during the dealer's storage period. If you plan long-term storage, disconnect the battery or use a battery disconnect switch (different from the salesman's switch) to cut all power when you are away.